{ "format_version": 3, "policy": { "external_id": "25a1acbc182afb49364032bddf83de66", "name": "Windows Server 2019 STIG V3R8", "version": "1.0.0", "description": "This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: disa.stig_spt@mail.mil.", "author": "DISA" }, "tests": [ { "external_id": "4ffbe910b58bf4c9495e971242abe67d", "name": "WN19-SO-000240 \u2014 Windows Server 2019 must be configured to prevent anonymous users from having...", "description": "Windows Server 2019 must be configured to prevent anonymous users from having the same permissions as the Everyone group.", "rational": "Access by anonymous users must be restricted. If this setting is enabled, anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network access: Let Everyone permissions apply to anonymous users\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|EveryoneIncludesAnonymous", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1ee3da6fd13da7c2c23fafb57e47e779", "name": "WN19-PK-000020 \u2014 Windows Server 2019 must have the DoD Interoperability Root Certificate Autho...", "description": "Windows Server 2019 must have the DoD Interoperability Root Certificate Authority (CA) cross-certificates installed in the Untrusted Certificates Store on unclassified systems.", "rational": "To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.\n\nSatisfies: SRG-OS-000066-GPOS-00034, SRG-OS-000403-GPOS-...", "remediation": "Install the DoD Interoperability Root CA cross-certificates on unclassified systems.\n\nIssued To - Issued By - Thumbprint\n\nDoD Root CA 3 - DoD Interoperability Root CA 2 - 49CBE933151872E17C8EAE7F0ABA97FB610F6477\n\nAdministrators should run the Federal Bridge Certification Authority (FBCA) Cross-Certificate Removal Tool once as an administrator and once as the current user.\n\nThe FBCA Cross-Certificate Remover Tool and User Guide are available on Cyber Exchange at https://cyber.mil/pki-pke/tools...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ChildItem -Path Cert:Localmachine\\disallowed | Where {$_\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "db9532eb2fb7f100aa5d9683a4fb40dd", "name": "WN19-SO-000180 \u2014 Windows Server 2019 unencrypted passwords must not be sent to third-party Ser...", "description": "Windows Server 2019 unencrypted passwords must not be sent to third-party Server Message Block (SMB) servers.", "rational": "Some non-Microsoft SMB servers only support unencrypted (plain-text) password authentication. Sending plain-text passwords across the network when authenticating to an SMB server reduces the overall security of the environment. Check with the vendor of the SMB server to determine if there is a way to support encrypted password authentication.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Microsoft Network Client: Send unencrypted password to third-party SMB servers\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanmanWorkstation\\Parameters|EnablePlainTextPassword", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "11c07ed6cee42fc7056997c752ac5df2", "name": "WN19-AU-000100 \u2014 Windows Server 2019 must be configured to audit Account Management - Security...", "description": "Windows Server 2019 must be configured to audit Account Management - Security Group Management successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Management >> \"Audit Security Group Management\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Security Group Management\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "275b111a0618266c3df5875100a931ea", "name": "WN19-AU-000110 \u2014 Windows Server 2019 must be configured to audit Account Management - User Acc...", "description": "Windows Server 2019 must be configured to audit Account Management - User Account Management successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Management >> \"Audit User Account Management\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"User Account Management\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e2768691dd5373cf35f889cd7088429a", "name": "WN19-AU-000120 \u2014 Windows Server 2019 must be configured to audit Account Management - User Acc...", "description": "Windows Server 2019 must be configured to audit Account Management - User Account Management failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Management >> \"Audit User Account Management\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"User Account Management\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7aee24c4233a428afc24eb98dffffdaa", "name": "WN19-DC-000230 \u2014 Windows Server 2019 must be configured to audit Account Management - Computer...", "description": "Windows Server 2019 must be configured to audit Account Management - Computer Account Management successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Management >> \"Audit Computer Account Management\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Computer Account Management\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "768b4496f90df38b95c88a412872b547", "name": "WN19-SO-000130 \u2014 Windows Server 2019 required legal notice must be configured to display befor...", "description": "Windows Server 2019 required legal notice must be configured to display before console logon.", "rational": "Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.\n\nSatisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000024-GPOS-00007, SRG-OS-000228-GPOS-00088", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Interactive Logon: Message text for users attempting to log on\" to the following:\n\nYou are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only.\n\nBy using this IS (which includes any device attached to this IS), you consent to the following conditions:\n\n-The USG routinely intercepts and monitors communication...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|LegalNoticeText", "selement": "EXISTS", "condition": "", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "83ca2a2cf4633c5f2c2ad2fa160c54bf", "name": "WN19-SO-000140 \u2014 Windows Server 2019 title for legal banner dialog box must be configured with...", "description": "Windows Server 2019 title for legal banner dialog box must be configured with the appropriate text.", "rational": "Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.\n\nSatisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000228-GPOS-00088", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Interactive Logon: Message title for users attempting to log on\" to \"DoD Notice and Consent Banner\", \"US Department of Defense Warning Statement\", or an organization-defined equivalent. \n\nIf an organization-defined title is used, it can in no case contravene or modify the language of the message text required in WN19-SO-000130.", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|LegalNoticeCaption", "selement": "CONTENT", "condition": "EQUALS", "sinput": "Refer to message title options below" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4411e636f25bab6ba56be2a78269fb05", "name": "WN19-SO-000120 \u2014 Windows Server 2019 machine inactivity limit must be set to 15 minutes or les...", "description": "Windows Server 2019 machine inactivity limit must be set to 15 minutes or less, locking the system with the screen saver.", "rational": "Unattended systems are susceptible to unauthorized use and should be locked when unattended. The screen saver should be set at a maximum of 15 minutes and be password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer.\n\nSatisfies: SRG-OS-000028-GPOS-00009, SRG-OS-000029-GPOS-00010, SRG-OS-000031-GPOS-00012", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Interactive logon: Machine inactivity limit\" to \"900\" seconds or less, excluding \"0\" which is effectively disabled.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|InactivityTimeoutSecs", "selement": "CONTENT", "condition": "EQUALS", "sinput": "900" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "6917a189dd13ed4235a4e1791070f6e4", "name": "WN19-AU-000190 \u2014 Windows Server 2019 must be configured to audit logon successes.", "description": "Windows Server 2019 must be configured to audit logon successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> \"Audit Logon\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"logon\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4d65f62e9332d94afc152bfa77439d8a", "name": "WN19-AU-000200 \u2014 Windows Server 2019 must be configured to audit logon failures.", "description": "Windows Server 2019 must be configured to audit logon failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> \"Audit Logon\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"logon\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "cefa4343073d0317722fa74bd1e89ef8", "name": "WN19-CC-000370 \u2014 Windows Server 2019 Remote Desktop Services must require secure Remote Proced...", "description": "Windows Server 2019 Remote Desktop Services must require secure Remote Procedure Call (RPC) communications.", "rational": "Allowing unsecure RPC communication exposes the system to man-in-the-middle attacks and data disclosure attacks. A man-in-the-middle attack occurs when an intruder captures packets between a client and server and modifies them before allowing the packets to be exchanged. Usually the attacker will modify the information in the packets in an attempt to cause either the client or server to reveal...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> \"Require secure RPC communication\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Terminal Services|fEncryptRPCTraffic", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ba67560131aff174bc2aac090923b747", "name": "WN19-CC-000380 \u2014 Windows Server 2019 Remote Desktop Services must be configured with the clien...", "description": "Windows Server 2019 Remote Desktop Services must be configured with the client connection encryption set to High Level.", "rational": "Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting \"High Level\" will ensure encryption of Remote Desktop Services sessions in both directions.\n\nSatisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000250-GPOS-00093", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> \"Set client connection encryption level\" to \"Enabled\" with \"High Level\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Terminal Services|MinEncryptionLevel", "selement": "CONTENT", "condition": "EQUALS", "sinput": "3" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "787a21637dcb721706c0ea4ab02af9a1", "name": "WN19-CC-000090 \u2014 Windows Server 2019 command line data must be included in process creation ev...", "description": "Windows Server 2019 command line data must be included in process creation events.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Audit Process Creation >> \"Include command line in process creation events\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\Audit|ProcessCreationIncludeCmdLine_Enabled", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f6f987457b42485aa0a8f54c57937a9b", "name": "WN19-CC-000460 \u2014 Windows Server 2019 PowerShell script block logging must be enabled.", "description": "Windows Server 2019 PowerShell script block logging must be enabled.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows PowerShell >> \"Turn on PowerShell Script Block Logging\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\PowerShell\\ScriptBlockLogging|EnableScriptBlockLogging", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d2e4f29918060e84bef53fb7528336a8", "name": "WN19-00-000270 \u2014 Windows Server 2019 must have the roles and features required by the system d...", "description": "Windows Server 2019 must have the roles and features required by the system documented.", "rational": "Unnecessary roles and features increase the attack surface of a system. Limiting roles and features of a system to only those necessary reduces this potential. The standard installation option (previously called Server Core) further reduces this when selected at installation.", "remediation": "Document the roles and features required for the system to operate. Uninstall any that are not required.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-WindowsFeature | Where-Object {$_\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ece7b57cd5d2db89f532d637f1d10407", "name": "WN19-SO-000050 \u2014 Windows Server 2019 must force audit policy subcategory settings to override ...", "description": "Windows Server 2019 must force audit policy subcategory settings to override audit policy category settings.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|SCENoApplyLegacyAuditPolicy", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "8ed07ab553f9e44475230aae1f4cd29e", "name": "WN19-DC-000300 \u2014 Windows Server 2019 PKI certificates associated with user accounts must be is...", "description": "Windows Server 2019 PKI certificates associated with user accounts must be issued by a DoD PKI or an approved External Certificate Authority (ECA).", "rational": "A PKI implementation depends on the practices established by the Certificate Authority (CA) to ensure the implementation is secure. Without proper practices, the certificates issued by a CA have limited value in authentication functions.", "remediation": "Map user accounts to PKI certificates using the appropriate User Principal Name (UPN) for the network. See PKE documentation for details.", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ADUser -Filter * | FT Name, UserPrincipalName, Enabled\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d3315d08cc9665c1de8ffa070cd793d9", "name": "WN19-PK-000010 \u2014 Windows Server 2019 must have the DoD Root Certificate Authority (CA) certifi...", "description": "Windows Server 2019 must have the DoD Root Certificate Authority (CA) certificates installed in the Trusted Root Store.", "rational": "To ensure secure DoD websites and DoD-signed code are properly validated, the system must trust the DoD Root CAs. The DoD root certificates will ensure that the trust chain is established for server certificates issued from the DoD CAs.\n\nSatisfies: SRG-OS-000066-GPOS-00034, SRG-OS-000403-GPOS-00182", "remediation": "Install the DoD Root CA certificates:\nDoD Root CA 3\nDoD Root CA 4\nDoD Root CA 5\nDoD Root CA 6\n\nThe InstallRoot tool is available on Cyber Exchange at https://cyber.mil/pki-pke/tools-configuration-files. Certificate bundles published by the PKI can be found at https://crl.gds.disa.mil/.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ChildItem -Path Cert:Localmachine\\root | Where Subject -Like\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "6ede078606154674d959aabc08d4fd93", "name": "WN19-PK-000030 \u2014 Windows Server 2019 must have the US DoD CCEB Interoperability Root CA cross-...", "description": "Windows Server 2019 must have the US DoD CCEB Interoperability Root CA cross-certificates in the Untrusted Certificates Store on unclassified systems.", "rational": "To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.\n\nSatisfies: SRG-OS-000066-GPOS-00034, SRG-OS-0004...", "remediation": "Install the US DoD CCEB Interoperability Root CA cross-certificate on unclassified systems.\n\nIssued To - Issued By - Thumbprint\n\nDoD Root CA 3 - US DoD CCEB Interoperability Root CA 2 - 9B74964506C7ED9138070D08D5F8B969866560C8 \nDoD Root CA 6 - US DOD CCEB Interoperability Root CA 2 -D471CA32F7A692CE6CBB6196BD3377FE4DBCD106 \n\nAdministrators should run the Federal Bridge Certification Authority (FBCA) Cross-Certificate Removal Tool once as an administrator and once...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ChildItem -Path Cert:Localmachine\\disallowed | Where Issuer -Like\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e861776973f32fa3f4ecd2b41dc754f9", "name": "WN19-SO-000350 \u2014 Windows Server 2019 users must be required to enter a password to access priv...", "description": "Windows Server 2019 users must be required to enter a password to access private keys stored on the computer.", "rational": "If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure.\n\nThe cornerstone of the PKI is the private key used to encrypt or digitally sign information.\n\nIf the private key is stolen, this will lead to the compromise of the authentication and non-repudiation gained through PKI because the attacker can use th...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"System cryptography: Force strong key protection for user keys stored on the computer\" to \"User must enter a password each time they use a key\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Cryptography|ForceKeyProtection", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f28191c7f35d8e925936ca27ea2e8a04", "name": "WN19-SO-000300 \u2014 Windows Server 2019 must be configured to prevent the storage of the LAN Mana...", "description": "Windows Server 2019 must be configured to prevent the storage of the LAN Manager hash of passwords.", "rational": "The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords. This setting controls whether a LAN Manager hash of the password is stored in the SAM the next time the password is changed.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Do not store LAN Manager hash value on next password change\" to \"Enabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|NoLMHash", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "572f5ff20cbb98fa49db647b8aaf331d", "name": "WN19-00-000020 \u2014 Windows Server 2019 passwords for the built-in Administrator account must be ...", "description": "Windows Server 2019 passwords for the built-in Administrator account must be changed at least every 60 days.", "rational": "The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the password. The built-in Administrator account is not generally used and its password might not be changed as frequently as necessary. Changing the password for the built-in Administrator account on a regular basis will limit its exposure.\n\nFor domain-joined systems, Windows LAPS must be...", "remediation": "Change the enabled local Administrator account password at least every 60 days. For domain-joined systems, Windows LAPS must be used to change the built-in Administrator account password.\n\nMore information is available at:\nhttps://techcommunity.microsoft.com/t5/windows-it-pro-blog/by-popular-demand-windows-laps-available-now/ba-p/3788747\nhttps://learn.microsoft.com/en-us/windows-server/identity/laps/laps-overview#windows-laps-supported-platforms-and-azure-ad-laps-preview-status", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-LocalUser | Where-Object {$_\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1802325b878f53edb13f0c7caff4f85e", "name": "WN19-00-000210 \u2014 Windows Server 2019 passwords must be configured to expire.", "description": "Windows Server 2019 passwords must be configured to expire.", "rational": "Passwords that do not expire or are reused increase the exposure of a password with greater probability of being discovered or cracked.", "remediation": "Configure all enabled user account passwords to expire.\n\nUncheck \"Password never expires\" for all enabled user accounts in Active Directory Users and Computers for domain accounts and Users in Computer Management for member servers and standalone or nondomain-joined systems. Document any exceptions with the ISSO.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-CimInstance -Class Win32_Useraccount -Filter\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "54fbf58c0d88e21034c88548a2854408", "name": "WN19-00-000320 \u2014 Windows Server 2019 must not have the Fax Server role installed.", "description": "Windows Server 2019 must not have the Fax Server role installed.", "rational": "Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.", "remediation": "Uninstall the \"Fax Server\" role.\n\nStart \"Server Manager\".\n\nSelect the server with the role.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"Fax Server\" on the \"Roles\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name Fax).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "3cb793fb26cb8c0f74a23e0846aa1819", "name": "WN19-00-000340 \u2014 Windows Server 2019 must not have the Peer Name Resolution Protocol installed.", "description": "Windows Server 2019 must not have the Peer Name Resolution Protocol installed.", "rational": "Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.", "remediation": "Uninstall the \"Peer Name Resolution Protocol\" feature.\n\nStart \"Server Manager\".\n\nSelect the server with the feature.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"Peer Name Resolution Protocol\" on the \"Features\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name PNRP).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "90a6dd3e7040e1135806b07fe8c10b24", "name": "WN19-00-000350 \u2014 Windows Server 2019 must not have Simple TCP/IP Services installed.", "description": "Windows Server 2019 must not have Simple TCP/IP Services installed.", "rational": "Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.", "remediation": "Uninstall the \"Simple TCP/IP Services\" feature.\n\nStart \"Server Manager\".\n\nSelect the server with the feature.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"Simple TCP/IP Services\" on the \"Features\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name Simple-TCPIP).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "27d39fb8de9f7f8e3233bfdc5c84fa3f", "name": "WN19-00-000370 \u2014 Windows Server 2019 must not have the TFTP Client installed.", "description": "Windows Server 2019 must not have the TFTP Client installed.", "rational": "Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.", "remediation": "Uninstall the \"TFTP Client\" feature.\n\nStart \"Server Manager\".\n\nSelect the server with the feature.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"TFTP Client\" on the \"Features\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name TFTP-Client).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "552ab913cdff7b0cc11724f95cc473cc", "name": "WN19-00-000380 \u2014 Windows Server 2019 must not have the Server Message Block (SMB) v1 protocol ...", "description": "Windows Server 2019 must not have the Server Message Block (SMB) v1 protocol installed.", "rational": "SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks and is not FIPS compliant.", "remediation": "Uninstall the SMBv1 protocol.\n\nOpen \"Windows PowerShell\" with elevated privileges (run as administrator).\n\nEnter \"Uninstall-WindowsFeature -Name FS-SMB1 -Restart\".\n(Omit the Restart parameter if an immediate restart of the system cannot be done.)\n\nAlternately:\n\nStart \"Server Manager\".\n\nSelect the server with the feature.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Sel...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-WindowsFeature -Name FS-SMB1\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c2982aeffe847f967962c870fbe976c3", "name": "WN19-00-000390 \u2014 Windows Server 2019 must have the Server Message Block (SMB) v1 protocol disa...", "description": "Windows Server 2019 must have the Server Message Block (SMB) v1 protocol disabled on the SMB server.", "rational": "SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> \"Configure SMBv1 Server\" to \"Disabled\".\n\nThe system must be restarted for the change to take effect.\n\nThis policy setting requires the installation of the SecGuide custom templates included with the STIG package. \"SecGuide.admx\" and \"SecGuide.adml\" must be copied to the \\Windows\\PolicyDefinitions and \\Windows\\PolicyDefinitions\\en-US directories respectively.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanmanServer\\Parameters|SMB1", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "26e9157426945590bd573f6474c595f6", "name": "WN19-00-000400 \u2014 Windows Server 2019 must have the Server Message Block (SMB) v1 protocol disa...", "description": "Windows Server 2019 must have the Server Message Block (SMB) v1 protocol disabled on the SMB client.", "rational": "SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> \"Configure SMBv1 client driver\" to \"Enabled\" with \"Disable driver (recommended)\" selected for \"Configure MrxSmb10 driver\".\n\nThe system must be restarted for the changes to take effect.\n\nThis policy setting requires the installation of the SecGuide custom templates included with the STIG package. \"SecGuide.admx\" and \"SecGuide.adml\" must be copied to the \\Windows\\PolicyDefinitions and \\Wind...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\mrxsmb10|Start", "selement": "CONTENT", "condition": "EQUALS", "sinput": "4" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "18db1220a457de11397470f225a1c28b", "name": "WN19-00-000410 \u2014 Windows Server 2019 must not have Windows PowerShell 2.0 installed.", "description": "Windows Server 2019 must not have Windows PowerShell 2.0 installed.", "rational": "Windows PowerShell 5.x added advanced logging features that can provide additional detail when malware has been run on a system. Disabling the Windows PowerShell 2.0 mitigates against a downgrade attack that evades the Windows PowerShell 5.x script block logging feature.", "remediation": "Uninstall the \"Windows PowerShell 2.0 Engine\".\n\nStart \"Server Manager\".\n\nSelect the server with the feature.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"Windows PowerShell 2.0 Engine\" under \"Windows PowerShell\" on the \"Features\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name PowerShell-v2).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1d28a523096c2e3e2a8f945f71a30eaf", "name": "WN19-CC-000010 \u2014 Windows Server 2019 must prevent the display of slide shows on the lock screen.", "description": "Windows Server 2019 must prevent the display of slide shows on the lock screen.", "rational": "Slide shows that are displayed on the lock screen could display sensitive information to unauthorized personnel. Turning off this feature will limit access to the information to a logged-on user.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Control Panel >> Personalization >> \"Prevent enabling lock screen slide show\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Personalization|NoLockScreenSlideshow", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "02219cb47d5d4f54933631233e77c770", "name": "WN19-CC-000020 \u2014 Windows Server 2019 must have WDigest Authentication disabled.", "description": "Windows Server 2019 must have WDigest Authentication disabled.", "rational": "When the WDigest Authentication protocol is enabled, plain-text passwords are stored in the Local Security Authority Subsystem Service (LSASS), exposing them to theft. WDigest is disabled by default in Windows Server 2019. This setting ensures this is enforced.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> \"WDigest Authentication (disabling may require KB2871997)\" to \"Disabled\".\n\nThis policy setting requires the installation of the SecGuide custom templates included with the STIG package. \"SecGuide.admx\" and \" SecGuide.adml\" must be copied to the \\Windows\\PolicyDefinitions and \\Windows\\PolicyDefinitions\\en-US directories respectively.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\Wdigest|UseLogonCredential", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c5f783e4cb96e76336cfdfa3ff69f3da", "name": "WN19-CC-000150 \u2014 Windows Server 2019 downloading print driver packages over HTTP must be turne...", "description": "Windows Server 2019 downloading print driver packages over HTTP must be turned off.", "rational": "Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and will prevent uncontrolled updates to the system. \n\nThis setting prevents the computer from downloading print driver packages over HTTP.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Internet Communication Management >> Internet Communication settings >> \"Turn off downloading of print drivers over HTTP\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Printers|DisableWebPnPDownload", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4b439dd9bc69af86a62314e06fb51e1e", "name": "WN19-CC-000160 \u2014 Windows Server 2019 printing over HTTP must be turned off.", "description": "Windows Server 2019 printing over HTTP must be turned off.", "rational": "Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and will prevent uncontrolled updates to the system.\n\nThis setting prevents the client computer from printing over HTTP, which allows the computer to print to...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Internet Communication Management >> Internet Communication settings >> \"Turn off printing over HTTP\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Printers|DisableHTTPPrinting", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1f7fb988d915dcfd44e4011b29d9fbd9", "name": "WN19-CC-000170 \u2014 Windows Server 2019 network selection user interface (UI) must not be display...", "description": "Windows Server 2019 network selection user interface (UI) must not be displayed on the logon screen.", "rational": "Enabling interaction with the network selection UI allows users to change connections to available networks without signing in to Windows.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> \"Do not display network selection UI\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\System|DontDisplayNetworkSelectionUI", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "288d69ae16b9203edc637bd4a4afe7ae", "name": "WN19-CC-000240 \u2014 Windows Server 2019 administrator accounts must not be enumerated during elev...", "description": "Windows Server 2019 administrator accounts must not be enumerated during elevation.", "rational": "Enumeration of administrator accounts when elevating can provide part of the logon information to an unauthorized user. This setting configures the system to always require users to type in a username and password to elevate a running application.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Credential User Interface >> \"Enumerate administrator accounts on elevation\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\CredUI|EnumerateAdministrators", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "42ab5af2a0a96c24ae68f6961bbf1c3b", "name": "WN19-CC-000200 \u2014 Windows Server 2019 Application Compatibility Program Inventory must be preve...", "description": "Windows Server 2019 Application Compatibility Program Inventory must be prevented from collecting data and sending the information to Microsoft.", "rational": "Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and will prevent uncontrolled updates to the system.\n\nThis setting will prevent the Program Inventory from collecting data about a system and sending the info...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Application Compatibility >> \"Turn off Inventory Collector\" to \"Enabled\".", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\AppCompat|DisableInventory", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "facd349807eb74124a2e6ee127332fb6", "name": "WN19-CC-000300 \u2014 Windows Server 2019 Windows Defender SmartScreen must be enabled.", "description": "Windows Server 2019 Windows Defender SmartScreen must be enabled.", "rational": "Windows Defender SmartScreen helps protect systems from programs downloaded from the internet that may be malicious. Enabling SmartScreen can block potentially malicious programs or warn users.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> \"Configure Windows Defender SmartScreen\" to \"Enabled\" with either option \"Warn\" or \"Warn and prevent bypass\" selected.\n\nWindows 2019 includes duplicate policies for this setting. It can also be configured under Computer Configuration >> Administrative Templates >> Windows Components >> Windows Defender SmartScreen >> Explorer.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\System|EnableSmartScreen", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e32034f3eeb32dd0ea4044288ae5e02a", "name": "WN19-CC-000400 \u2014 Windows Server 2019 must disable Basic authentication for RSS feeds over HTTP.", "description": "Windows Server 2019 must disable Basic authentication for RSS feeds over HTTP.", "rational": "Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.", "remediation": "The default behavior is for the Windows RSS platform to not use Basic authentication over HTTP connections.\n\nIf this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> RSS Feeds >> \"Turn on Basic feed authentication over HTTP\" to \"Not Configured\" or \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Internet Explorer\\Feeds|AllowBasicAuthInClear", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5fb2afec972c9b810fece75df0454bfb", "name": "WN19-CC-000410 \u2014 Windows Server 2019 must prevent Indexing of encrypted files.", "description": "Windows Server 2019 must prevent Indexing of encrypted files.", "rational": "Indexing of encrypted files may expose sensitive data. This setting prevents encrypted files from being indexed.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Search >> \"Allow indexing of encrypted files\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Windows Search|AllowIndexingEncryptedStoresOrItems", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e909d2d3a33d9ae390d610e36ecf2b55", "name": "WN19-MS-000030 \u2014 Windows Server 2019 local users on domain-joined member servers must not be e...", "description": "Windows Server 2019 local users on domain-joined member servers must not be enumerated.", "rational": "The username is one part of logon credentials that could be used to gain access to a system. Preventing the enumeration of users limits this information to authorized personnel.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> \"Enumerate local users on domain-joined computers\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\System|EnumerateLocalUsers", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "48e7bf87adb03cd1ca181a95004d6727", "name": "WN19-00-000330 \u2014 Windows Server 2019 must not have the Microsoft FTP service installed unless ...", "description": "Windows Server 2019 must not have the Microsoft FTP service installed unless required by the organization.", "rational": "Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption.", "remediation": "Uninstall the \"FTP Server\" role.\n\nStart \"Server Manager\".\n\nSelect the server with the role.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"FTP Server\" under \"Web Server (IIS)\" on the \"Roles\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name Web-Ftp-Service).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "755c34a197481ea40aa7e8d51aca0c83", "name": "WN19-00-000360 \u2014 Windows Server 2019 must not have the Telnet Client installed.", "description": "Windows Server 2019 must not have the Telnet Client installed.", "rational": "Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.", "remediation": "Uninstall the \"Telnet Client\" feature.\n\nStart \"Server Manager\".\n\nSelect the server with the feature.\n\nScroll down to \"ROLES AND FEATURES\" in the right pane.\n\nSelect \"Remove Roles and Features\" from the drop-down \"TASKS\" list.\n\nSelect the appropriate server on the \"Server Selection\" page and click \"Next\".\n\nDeselect \"Telnet Client\" on the \"Features\" page.\n\nClick \"Next\" and \"Remove\" as prompted.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-WindowsFeature -Name Telnet-Client).InstallState\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "Installed" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "2637ab1aa0de82fda478736395ac76a7", "name": "WN19-00-000200 \u2014 Windows Server 2019 accounts must require passwords.", "description": "Windows Server 2019 accounts must require passwords.", "rational": "The lack of password protection enables anyone to gain access to the information system, which opens a backdoor opportunity for intruders to compromise the system as well as other resources. Accounts on a system must require passwords.", "remediation": "Configure all enabled accounts to require passwords.\n\nThe password required flag can be set by entering the following on a command line: \"Net user [username] /passwordreq:yes\", substituting [username] with the name of the user account.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-Aduser -Filter * -Properties Passwordnotrequired |FT Name, Passwordnotrequired, Enabled\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1c7b113adf378ee9b1f696c8a0a3b380", "name": "WN19-DC-000310 \u2014 Windows Server 2019 Active Directory user accounts, including administrators,...", "description": "Windows Server 2019 Active Directory user accounts, including administrators, must be configured to require the use of a Common Access Card (CAC), Personal Identity Verification (PIV)-compliant hardware token, or Alternate Logon Token (ALT) for user authentication.", "rational": "Smart cards such as the CAC support a two-factor authentication technique. This provides a higher level of trust in the asserted identity than use of the username and password for authentication.\n\nSatisfies: SRG-OS-000105-GPOS-00052, SRG-OS-000106-GPOS-00053, SRG-OS-000107-GPOS-00054, SRG-OS-000108-GPOS-00055, SRG-OS-000375-GPOS-00160", "remediation": "Configure all user accounts, including administrator accounts, in Active Directory to enable the option \"Smart card is required for interactive logon\".\n\nRun \"Active Directory Users and Computers\" (available from various menus or run \"dsa.msc\"):\n\nSelect the OU where the user accounts are located. (By default this is the Users node; however, accounts may be under other organization-defined OUs.)\n\nRight-click the user account and select \"Properties\".\n\nSelect the \"Account\" tab.\n\nCheck \"Smart card...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ADUser -Filter {(Enabled -eq $True) -and (SmartcardLogonRequired -eq $False)} | FT Name\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5450e19b7a6bc3c6163929d6f2870bdd", "name": "WN19-SO-000290 \u2014 Windows Server 2019 Kerberos encryption types must be configured to prevent t...", "description": "Windows Server 2019 Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.", "rational": "Certain encryption types are no longer considered secure. The DES and RC4 encryption suites must not be used for Kerberos encryption.\n\nNote: Organizations with domain controllers running earlier versions of Windows where RC4 encryption is enabled, selecting \"The other domain supports Kerberos AES Encryption\" on domain trusts, may be required to allow client communication across the trust relati...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Configure encryption types allowed for Kerberos\" to \"Enabled\" with only the following selected:\n\nAES128_HMAC_SHA1\nAES256_HMAC_SHA1\nFuture encryption types\n\nNote: Organizations with domain controllers running earlier versions of Windows where RC4 encryption is enabled, selecting \"The other domain supports Kerberos AES Encryption\" on domain t...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\Kerberos\\Parameters|SupportedEncryptionTypes", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2147483640" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c675603702200b18dfc61e210bbe2f64", "name": "WN19-CC-000470 \u2014 Windows Server 2019 Windows Remote Management (WinRM) client must not use Bas...", "description": "Windows Server 2019 Windows Remote Management (WinRM) client must not use Basic authentication.", "rational": "Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> \"Allow Basic authentication\" to \"Disabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\WinRM\\Client|AllowBasic", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "02ad5a32492e22b0185681467eac0f71", "name": "WN19-CC-000490 \u2014 Windows Server 2019 Windows Remote Management (WinRM) client must not use Dig...", "description": "Windows Server 2019 Windows Remote Management (WinRM) client must not use Digest authentication.", "rational": "Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks. Disallowing Digest authentication will reduce this potential.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> \"Disallow Digest authentication\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\WinRM\\Client|AllowDigest", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "bbb4d70eeaccbdb9e3045f693b27233a", "name": "WN19-CC-000500 \u2014 Windows Server 2019 Windows Remote Management (WinRM) service must not use Ba...", "description": "Windows Server 2019 Windows Remote Management (WinRM) service must not use Basic authentication.", "rational": "Basic authentication uses plain-text passwords that could be used to compromise a system. Disabling Basic authentication will reduce this potential.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> \"Allow Basic authentication\" to \"Disabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\WinRM\\Service|AllowBasic", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "45f15595fbe7dda686562f945a7b0287", "name": "WN19-MS-000020 \u2014 Windows Server 2019 local administrator accounts must have their privileged t...", "description": "Windows Server 2019 local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain-joined member servers.", "rational": "A compromised local administrator account can provide means for an attacker to move laterally between domain systems.\n\nWith User Account Control enabled, filtering the privileged token for local administrator accounts will prevent the elevated privileges of these accounts from being used over the network.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> \"Apply UAC restrictions to local accounts on network logons\" to \"Enabled\".\n\nThis policy setting requires the installation of the SecGuide custom templates included with the STIG package. \"SecGuide.admx\" and \"SecGuide.adml\" must be copied to the \\Windows\\PolicyDefinitions and \\Windows\\PolicyDefinitions\\en-US directories respectively.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|LocalAccountTokenFilterPolicy", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7b8b2bab1311d35de1c81dfb2c8fa556", "name": "WN19-SO-000390 \u2014 Windows Server 2019 UIAccess applications must not be allowed to prompt for e...", "description": "Windows Server 2019 UIAccess applications must not be allowed to prompt for elevation without using the secure desktop.", "rational": "User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting prevents User Interface Accessibility programs from disabling the secure desktop for elevation prompts.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|EnableUIADesktopToggle", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7ec55cdc0186d0d1f73cff2fc2326061", "name": "WN19-SO-000400 \u2014 Windows Server 2019 User Account Control must, at a minimum, prompt administr...", "description": "Windows Server 2019 User Account Control must, at a minimum, prompt administrators for consent on the secure desktop.", "rational": "User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the elevation requirements for logged-on administrators to complete a task that requires raised privileges.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode\" to \"Prompt for consent on the secure desktop\".\n\nThe more secure option for this setting, \"Prompt for credentials on the secure desktop\", would also be acceptable.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|ConsentPromptBehaviorAdmin", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "2f8dbce39c2f449b6391865f1d2f1839", "name": "WN19-SO-000420 \u2014 Windows Server 2019 User Account Control must be configured to detect applica...", "description": "Windows Server 2019 User Account Control must be configured to detect application installations and prompt for elevation.", "rational": "User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting requires Windows to respond to application installation requests by prompting for credentials.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Detect application installations and prompt for elevation\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|EnableInstallerDetection", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c42b85c7c86f25193bee5236d5ec3156", "name": "WN19-SO-000430 \u2014 Windows Server 2019 User Account Control (UAC) must only elevate UIAccess app...", "description": "Windows Server 2019 User Account Control (UAC) must only elevate UIAccess applications that are installed in secure locations.", "rational": "UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures Windows to only allow applications installed in a secure location on the file system, such as the Program Files or the Windows\\System32 folders, to run with elevated privileges.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Only elevate UIAccess applications that are installed in secure locations\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|EnableSecureUIAPaths", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "232a6a954abe2b4bbdc99dce03190c73", "name": "WN19-SO-000450 \u2014 Windows Server 2019 User Account Control (UAC) must virtualize file and regis...", "description": "Windows Server 2019 User Account Control (UAC) must virtualize file and registry write failures to per-user locations.", "rational": "UAC is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures non-UAC-compliant applications to run in virtualized file and registry entries in per-user locations, allowing them to run.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Virtualize file and registry write failures to per-user locations\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|EnableVirtualization", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7751d05149afb32d9cc5500d7bfcec77", "name": "WN19-CC-000350 \u2014 Windows Server 2019 Remote Desktop Services must prevent drive redirection.", "description": "Windows Server 2019 Remote Desktop Services must prevent drive redirection.", "rational": "Preventing users from sharing the local drives on their client computers with Remote Session Hosts that they access helps reduce possible exposure of sensitive data.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Device and Resource Redirection >> \"Do not allow drive redirection\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Terminal Services|fDisableCdm", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e8dce2ba4ffbcaf0b5525587ef8f0d91", "name": "WN19-SO-000230 \u2014 Windows Server 2019 must not allow anonymous enumeration of shares.", "description": "Windows Server 2019 must not allow anonymous enumeration of shares.", "rational": "Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can provide a map of potential points to attack the system.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network access: Do not allow anonymous enumeration of SAM accounts and shares\" to \"Enabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|RestrictAnonymous", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e90496ba1c8b03c9761a5789358d187a", "name": "WN19-SO-000250 \u2014 Windows Server 2019 must restrict anonymous access to Named Pipes and Shares.", "description": "Windows Server 2019 must restrict anonymous access to Named Pipes and Shares.", "rational": "Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restricts access to those defined in \"Network access: Named Pipes that can be accessed anonymously\" and \"Network access: Shares that can be accessed anonymously\", both of which must be blank under other requirements.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network access: Restrict anonymous access to Named Pipes and Shares\" to \"Enabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanManServer\\Parameters|RestrictNullSessAccess", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "dc78c4149d8af3fad13d1b0785e46250", "name": "WN19-AU-000160 \u2014 Windows Server 2019 must be configured to audit Logon/Logoff - Account Lockou...", "description": "Windows Server 2019 must be configured to audit Logon/Logoff - Account Lockout failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> \"Audit Account Lockout\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Account Lockout\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ed2367d7f28dc227efe0077cae8a7539", "name": "WN19-SO-000260 \u2014 Windows Server 2019 services using Local System that use Negotiate when rever...", "description": "Windows Server 2019 services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity instead of authenticating anonymously.", "rational": "Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed to authenticate anonymously versus using the computer identity.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Allow Local System to use computer identity for NTLM\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\LSA|UseMachineId", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7b09d0de4a0139a497f89ae549a546fb", "name": "WN19-MS-000060 \u2014 Windows Server 2019 must restrict remote calls to the Security Account Manage...", "description": "Windows Server 2019 must restrict remote calls to the Security Account Manager (SAM) to Administrators on domain-joined member servers and standalone or nondomain-joined systems.", "rational": "The Windows SAM stores users' passwords. Restricting Remote Procedure Call (RPC) connections to the SAM to Administrators helps protect those credentials.", "remediation": "Navigate to the policy Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network access: Restrict clients allowed to make remote calls to SAM\". \n\nSelect \"Edit Security\" to configure the \"Security descriptor:\".\n\nAdd \"Administrators\" in \"Group or user names:\" if it is not already listed (this is the default).\n\nSelect \"Administrators\" in \"Group or user names:\".\n\nSelect \"Allow\" for \"Remote Access\" in \"Permissions for \"Administrators\".\n\nClick...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|RestrictRemoteSAM", "selement": "CONTENT", "condition": "EQUALS", "sinput": "O:BAG:BAD:(A;;RC;;;BA)" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "650faa9804ca8a4624fbed2581b22b6d", "name": "WN19-SO-000270 \u2014 Windows Server 2019 must prevent NTLM from falling back to a Null session.", "description": "Windows Server 2019 must prevent NTLM from falling back to a Null session.", "rational": "NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Allow LocalSystem NULL session fallback\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\LSA\\MSV1_0|allownullsessionfallback", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "73ffe320fff24d44cb6f61903107cb98", "name": "WN19-CC-000270 \u2014 Windows Server 2019 Application event log size must be configured to 32768 KB...", "description": "Windows Server 2019 Application event log size must be configured to 32768 KB or greater.", "rational": "Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> Application >> \"Specify the maximum log file size (KB)\" to \"Enabled\" with a \"Maximum Log Size (KB)\" of \"32768\" or greater.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\EventLog\\Application|MaxSize", "selement": "CONTENT", "condition": "EQUALS", "sinput": "32768" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "54ee8b4308c94bdfed51acf47d2176a1", "name": "WN19-CC-000210 \u2014 Windows Server 2019 Autoplay must be turned off for non-volume devices.", "description": "Windows Server 2019 Autoplay must be turned off for non-volume devices.", "rational": "Allowing AutoPlay to execute may introduce malicious code to a system. AutoPlay begins reading from a drive as soon as media is inserted into the drive. As a result, the setup file of programs or music on audio media may start. This setting will disable AutoPlay for non-volume devices, such as Media Transfer Protocol (MTP) devices.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> AutoPlay Policies >> \"Disallow Autoplay for non-volume devices\" to \"Enabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Explorer|NoAutoplayfornonVolume", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c591344c56a13e00ed22b0c72e63ca6a", "name": "WN19-AU-000090 \u2014 Windows Server 2019 must be configured to audit Account Management - Other Ac...", "description": "Windows Server 2019 must be configured to audit Account Management - Other Account Management Events successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Management >> \"Audit Other Account Management Events\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Other Account Management Events\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f619907230417ceb211dbac3986864b4", "name": "WN19-AU-000140 \u2014 Windows Server 2019 must be configured to audit Detailed Tracking - Process C...", "description": "Windows Server 2019 must be configured to audit Detailed Tracking - Process Creation successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Detailed Tracking >> \"Audit Process Creation\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Process Creation\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "8adb08fe518bfbee5b06190bc8314616", "name": "WN19-AU-000260 \u2014 Windows Server 2019 must be configured to audit Policy Change - Audit Policy ...", "description": "Windows Server 2019 must be configured to audit Policy Change - Audit Policy Change successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> \"Audit Audit Policy Change\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Audit Policy Change\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1d0f295f940a823686e347a55ff7bc24", "name": "WN19-AU-000270 \u2014 Windows Server 2019 must be configured to audit Policy Change - Audit Policy ...", "description": "Windows Server 2019 must be configured to audit Policy Change - Audit Policy Change failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> \"Audit Audit Policy Change\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Audit Policy Change\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "9cb57882f0347b16a0cb032b97afc3ab", "name": "WN19-AU-000280 \u2014 Windows Server 2019 must be configured to audit Policy Change - Authenticatio...", "description": "Windows Server 2019 must be configured to audit Policy Change - Authentication Policy Change successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> \"Audit Authentication Policy Change\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Authentication Policy Change\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "9ca9c772b4dae3a60cdd547aa59b41ef", "name": "WN19-AU-000290 \u2014 Windows Server 2019 must be configured to audit Policy Change - Authorization...", "description": "Windows Server 2019 must be configured to audit Policy Change - Authorization Policy Change successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> \"Audit Authorization Policy Change\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Authorization Policy Change\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "089af5cd098dbc143af5aa372d829cae", "name": "WN19-AU-000300 \u2014 Windows Server 2019 must be configured to audit Privilege Use - Sensitive Pri...", "description": "Windows Server 2019 must be configured to audit Privilege Use - Sensitive Privilege Use successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Privilege Use >> \"Audit Sensitive Privilege Use\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Sensitive Privilege Use\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b24328885434fcfc2d784e90cdf1df42", "name": "WN19-AU-000310 \u2014 Windows Server 2019 must be configured to audit Privilege Use - Sensitive Pri...", "description": "Windows Server 2019 must be configured to audit Privilege Use - Sensitive Privilege Use failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Privilege Use >> \"Audit Sensitive Privilege Use\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Sensitive Privilege Use\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1d738928489f54051e9693d5925f29e8", "name": "WN19-AU-000320 \u2014 Windows Server 2019 must be configured to audit System - IPsec Driver successes.", "description": "Windows Server 2019 must be configured to audit System - IPsec Driver successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit IPsec Driver\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"IPsec Driver\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b6ec4f9d9b7ab89f53c1ff3695e469b7", "name": "WN19-AU-000330 \u2014 Windows Server 2019 must be configured to audit System - IPsec Driver failures.", "description": "Windows Server 2019 must be configured to audit System - IPsec Driver failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit IPsec Driver\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"IPsec Driver\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "8f44a1db7e676dc4f53eb430b401e8ea", "name": "WN19-AU-000340 \u2014 Windows Server 2019 must be configured to audit System - Other System Events ...", "description": "Windows Server 2019 must be configured to audit System - Other System Events successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit Other System Events\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Other System Events\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "9aa5757a1d6c67dd8473155218975132", "name": "WN19-AU-000350 \u2014 Windows Server 2019 must be configured to audit System - Other System Events ...", "description": "Windows Server 2019 must be configured to audit System - Other System Events failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit Other System Events\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Other System Events\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "8ee36426e32558297a9b18fb4133a4ed", "name": "WN19-AU-000360 \u2014 Windows Server 2019 must be configured to audit System - Security State Chang...", "description": "Windows Server 2019 must be configured to audit System - Security State Change successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit Security State Change\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Security State Change\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b8bb75601cd1c8c5c72d3fd1f12b4691", "name": "WN19-AU-000370 \u2014 Windows Server 2019 must be configured to audit System - Security System Exte...", "description": "Windows Server 2019 must be configured to audit System - Security System Extension successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit Security System Extension\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Security System Extension\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "649e154fa143700fe49ed80be20e43be", "name": "WN19-AU-000380 \u2014 Windows Server 2019 must be configured to audit System - System Integrity suc...", "description": "Windows Server 2019 must be configured to audit System - System Integrity successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit System Integrity\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"System Integrity\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "6f3fe08c88634802627509a97f5d5e20", "name": "WN19-AU-000390 \u2014 Windows Server 2019 must be configured to audit System - System Integrity fai...", "description": "Windows Server 2019 must be configured to audit System - System Integrity failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> System >> \"Audit System Integrity\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"System Integrity\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "3e45aa8a99875021ce6e355d5a6fd871", "name": "WN19-CC-000220 \u2014 Windows Server 2019 default AutoRun behavior must be configured to prevent Au...", "description": "Windows Server 2019 default AutoRun behavior must be configured to prevent AutoRun commands.", "rational": "Allowing AutoRun commands to execute may introduce malicious code to a system. Configuring this setting prevents AutoRun commands from executing.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> AutoPlay Policies >> \"Set the default behavior for AutoRun\" to \"Enabled\" with \"Do not execute any autorun commands\" selected.", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer|NoAutorun", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5632498711f167bf29c2226e520327c2", "name": "WN19-CC-000230 \u2014 Windows Server 2019 AutoPlay must be disabled for all drives.", "description": "Windows Server 2019 AutoPlay must be disabled for all drives.", "rational": "Allowing AutoPlay to execute may introduce malicious code to a system. AutoPlay begins reading from a drive as soon media is inserted into the drive. As a result, the setup file of programs or music on audio media may start. By default, AutoPlay is disabled on removable drives, such as the floppy disk drive (but not the CD-ROM drive) and on network drives. Enabling this policy disables AutoPlay...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> AutoPlay Policies >> \"Turn off AutoPlay\" to \"Enabled\" with \"All Drives\" selected.", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\policies\\Explorer|NoDriveTypeAutoRun", "selement": "CONTENT", "condition": "EQUALS", "sinput": "255" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "49276e7fd0e95dc2b54aeb8ab4b04f3f", "name": "WN19-DC-000240 \u2014 Windows Server 2019 must be configured to audit DS Access - Directory Service...", "description": "Windows Server 2019 must be configured to audit DS Access - Directory Service Access successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> DS Access >> \"Directory Service Access\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Directory Service Access\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f35b2398aec0d996289a5a25e5cabea0", "name": "WN19-DC-000250 \u2014 Windows Server 2019 must be configured to audit DS Access - Directory Service...", "description": "Windows Server 2019 must be configured to audit DS Access - Directory Service Access failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> DS Access >> \"Directory Service Access\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Directory Service Access\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "33a3df0a4b9549b79b1d536a27e9a8c0", "name": "WN19-DC-000260 \u2014 Windows Server 2019 must be configured to audit DS Access - Directory Service...", "description": "Windows Server 2019 must be configured to audit DS Access - Directory Service Changes successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> DS Access >> \"Directory Service Changes\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Directory Service Changes\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1cdf1e82da96a2c1408f0bffaae92230", "name": "WN19-CC-000280 \u2014 Windows Server 2019 security event log size must be configured to a value tha...", "description": "Windows Server 2019 security event log size must be configured to a value that holds at least one week's worth of audit records.", "rational": "Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel. System administrators (SAs) must monitor the volume of security event audit records and increase the registry value for the log size as needed.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> Security >> \"Specify the maximum log file size (KB)\" to \"Enabled\" with a \"Maximum Log Size (KB)\" of a value that will contain one week of audit records or greater.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\EventLog\\Security|MaxSize", "selement": "CONTENT", "condition": "EQUALS", "sinput": "5120000" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f06cf6f817e1b2067a93688c213fa47c", "name": "WN19-CC-000290 \u2014 Windows Server 2019 System event log size must be configured to 32768 KB or g...", "description": "Windows Server 2019 System event log size must be configured to 32768 KB or greater.", "rational": "Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Event Log Service >> System >> \"Specify the maximum log file size (KB)\" to \"Enabled\" with a \"Maximum Log Size (KB)\" of \"32768\" or greater.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\EventLog\\System|MaxSize", "selement": "CONTENT", "condition": "EQUALS", "sinput": "32768" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "310a898cdbc8269e9b192be8dedd48ce", "name": "WN19-00-000440 \u2014 The Windows Server 2019 time service must synchronize with an appropriate DOD...", "description": "The Windows Server 2019 time service must synchronize with an appropriate DOD time source.", "rational": "The Windows Time Service controls time synchronization settings. Time synchronization is essential for authentication and auditing purposes. If the Windows Time Service is used, it must synchronize with a secure, authorized time source. Domain-joined systems are automatically configured to synchronize with domain controllers. If an NTP server is configured, it must synchronize with a secure, au...", "remediation": "Configure the system to synchronize time with an appropriate DOD time source.\n\nDomain-joined systems use NT5DS to synchronize time from other systems in the domain by default.\n\nIf the system needs to be configured to an NTP server, configure the system to point to an authorized time server by setting the policy value for Computer Configuration >> Administrative Templates >> System >> Windows Time Service >> Time Providers >> \"Configure Windows NTP Client\" to \"Enabled\", and configure the \"NtpS...", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ADDomain | FT PDCEmulator\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ce64cdd4e22fe0ad0d41fd8e4563cdf0", "name": "WN19-CC-000420 \u2014 Windows Server 2019 must prevent users from changing installation options.", "description": "Windows Server 2019 must prevent users from changing installation options.", "rational": "Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> \"Allow user control over installs\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Installer|EnableUserControl", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e810821d1e5924da3f4e190764f5e96d", "name": "WN19-CC-000430 \u2014 Windows Server 2019 must disable the Windows Installer Always install with el...", "description": "Windows Server 2019 must disable the Windows Installer Always install with elevated privileges option.", "rational": "Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when installing applications can allow malicious persons and applications to gain full control of a system.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> \"Always install with elevated privileges\" to \"Disabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Installer|AlwaysInstallElevated", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ba70ed8d3f408bbbee53ccd9a22516d6", "name": "WN19-00-000080 \u2014 Windows Server 2019 must employ a deny-all, permit-by-exception policy to all...", "description": "Windows Server 2019 must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.", "rational": "Using an allowlist provides a configuration management method to allow the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities.\n\nThe organization must identify authorized software programs and only permit execution of authorized software. The process used to identify software programs that are authorized to exe...", "remediation": "Configure an application allowlisting program to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.\n\nConfiguration of allowlisting applications will vary by the program. AppLocker is an allowlisting application built into Windows Server.\n\nIf AppLocker is used, it is configured through group policy in Computer Configuration >> Windows Settings >> Security Settings >> Application Control Policies >> AppLocker.\n\nImplementation guidance for AppLo...", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-AppLockerPolicy -Effective -XML > c:\\temp\\file\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ead75a0351162bb19c1af20beea5ff36", "name": "WN19-CC-000340 \u2014 Windows Server 2019 must not save passwords in the Remote Desktop Client.", "description": "Windows Server 2019 must not save passwords in the Remote Desktop Client.", "rational": "Saving passwords in the Remote Desktop Client could allow an unauthorized user to establish a remote desktop session to another system. The system must be configured to prevent users from saving passwords in the Remote Desktop Client.\n\nSatisfies: SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00156", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Connection Client >> \"Do not allow passwords to be saved\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Terminal Services|DisablePasswordSaving", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "837f8d85d9ea4cea8ca59576cdf892a4", "name": "WN19-CC-000360 \u2014 Windows Server 2019 Remote Desktop Services must always prompt a client for p...", "description": "Windows Server 2019 Remote Desktop Services must always prompt a client for passwords upon connection.", "rational": "This setting controls the ability of users to supply passwords automatically as part of their remote desktop connection. Disabling this setting would allow anyone to use the stored credentials in a connection item to connect to the terminal server.\n\nSatisfies: SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00156", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> \"Always prompt for password upon connection\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Terminal Services|fPromptForPassword", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5d2e0c9c7a55a651f516963931fe14f2", "name": "WN19-CC-000520 \u2014 Windows Server 2019 Windows Remote Management (WinRM) service must not store ...", "description": "Windows Server 2019 Windows Remote Management (WinRM) service must not store RunAs credentials.", "rational": "Storage of administrative credentials could allow unauthorized access. Disallowing the storage of RunAs credentials for Windows Remote Management will prevent them from being used with plug-ins.\n\nSatisfies: SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00156", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> \"Disallow WinRM from storing RunAs credentials\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\WinRM\\Service|DisableRunAs", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "3237202dfe8c4b596ba20875112f28c7", "name": "WN19-SO-000380 \u2014 Windows Server 2019 User Account Control approval mode for the built-in Admin...", "description": "Windows Server 2019 User Account Control approval mode for the built-in Administrator must be enabled.", "rational": "User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the built-in Administrator account so that it runs in Admin Approval Mode.\n\nSatisfies: SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00156", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Admin Approval Mode for the Built-in Administrator account\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|FilterAdministratorToken", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e0e814b24b7bd4ac82297a35f7c4ea40", "name": "WN19-SO-000410 \u2014 Windows Server 2019 User Account Control must automatically deny standard use...", "description": "Windows Server 2019 User Account Control must automatically deny standard user requests for elevation.", "rational": "User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting controls the behavior of elevation when requested by a standard user account.\n\nSatisfies: SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00156", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Behavior of the elevation prompt for standard users\" to \"Automatically deny elevation requests\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|ConsentPromptBehaviorUser", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "264844efb53d4eba50fb42c7e81ac50a", "name": "WN19-SO-000440 \u2014 Windows Server 2019 User Account Control must run all administrators in Admin...", "description": "Windows Server 2019 User Account Control must run all administrators in Admin Approval Mode, enabling UAC.", "rational": "User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting enables UAC.\n\nSatisfies: SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00156", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"User Account Control: Run all administrators in Admin Approval Mode\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|EnableLUA", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "cd106c97df3e0084c07894d758af0251", "name": "WN19-MS-000040 \u2014 Windows Server 2019 must restrict unauthenticated Remote Procedure Call (RPC)...", "description": "Windows Server 2019 must restrict unauthenticated Remote Procedure Call (RPC) clients from connecting to the RPC server on domain-joined member servers and standalone or nondomain-joined systems.", "rational": "Unauthenticated RPC clients may allow anonymous access to sensitive information. Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Remote Procedure Call >> \"Restrict Unauthenticated RPC clients\" to \"Enabled\" with \"Authenticated\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows NT\\Rpc|RestrictRemoteClients", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "64fbd8dec1294406f3ce86ddc7c51b30", "name": "WN19-SO-000090 \u2014 Windows Server 2019 computer account password must not be prevented from bein...", "description": "Windows Server 2019 computer account password must not be prevented from being reset.", "rational": "Computer account passwords are changed automatically on a regular basis. Disabling automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for the system. A new password for the computer account will be generated every 30 days.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain member: Disable machine account password changes\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|DisablePasswordChange", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "9343cb9d5da6e0074c663db9beda153a", "name": "WN19-CC-000480 \u2014 Windows Server 2019 Windows Remote Management (WinRM) client must not allow u...", "description": "Windows Server 2019 Windows Remote Management (WinRM) client must not allow unencrypted traffic.", "rational": "Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.\n\nSatisfies: SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> \"Allow unencrypted traffic\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\WinRM\\Client|AllowUnencryptedTraffic", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f9e3463eba81a34bee2f64836311d3d0", "name": "WN19-CC-000510 \u2014 Windows Server 2019 Windows Remote Management (WinRM) service must not allow ...", "description": "Windows Server 2019 Windows Remote Management (WinRM) service must not allow unencrypted traffic.", "rational": "Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.\n\nSatisfies: SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> \"Allow unencrypted traffic\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\WinRM\\Service|AllowUnencryptedTraffic", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7e2d3869579f100bd005dc5bbf5f7346", "name": "WN19-CC-000060 \u2014 Windows Server 2019 must be configured to ignore NetBIOS name release request...", "description": "Windows Server 2019 must be configured to ignore NetBIOS name release requests except from WINS servers.", "rational": "Configuring the system to ignore name release requests, except from WINS servers, prevents a denial of service (DoS) attack. The DoS consists of sending a NetBIOS name release request to the server for each entry in the server's cache, causing a response delay in the normal operation of the server's WINS resolution capability.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> \"MSS: (NoNameReleaseOnDemand) Allow the computer to ignore NetBIOS name release requests except from WINS servers\" to \"Enabled\".\n\nThis policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. \"MSS-Legacy.admx\" and \"MSS-Legacy.adml\" must be copied to the \\Windows\\PolicyDefinitions and \\Windows\\PolicyDefinitions\\en-US directories respectively.", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netbt\\Parameters|NoNameReleaseOnDemand", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b1b84b72b46b53a262eb21eabf93049f", "name": "WN19-DC-000320 \u2014 Windows Server 2019 domain controllers must require LDAP access signing.", "description": "Windows Server 2019 domain controllers must require LDAP access signing.", "rational": "Unsigned network traffic is susceptible to man-in-the-middle attacks, where an intruder captures packets between the server and the client and modifies them before forwarding them to the client. In the case of an LDAP server, this means that an attacker could cause a client to make decisions based on false records from the LDAP directory. The risk of an attacker pulling this off can be decrease...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain controller: LDAP server signing requirements\" to \"Require signing\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\NTDS\\Parameters|LDAPServerIntegrity", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "712b6b05b126ec9c96297c92a3902427", "name": "WN19-SO-000060 \u2014 Windows Server 2019 setting Domain member: Digitally encrypt or sign secure c...", "description": "Windows Server 2019 setting Domain member: Digitally encrypt or sign secure channel data (always) must be configured to Enabled.", "rational": "Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain member: Digitally encrypt or sign secure channel data (always)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|RequireSignOrSeal", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4ecbedde1775d658d1ac5b7334191649", "name": "WN19-SO-000070 \u2014 Windows Server 2019 setting Domain member: Digitally encrypt secure channel d...", "description": "Windows Server 2019 setting Domain member: Digitally encrypt secure channel data (when possible) must be configured to enabled.", "rational": "Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain member: Digitally encrypt secure channel data (when possible)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|SealSecureChannel", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "9710d183f1c943811703109ccf80c4ce", "name": "WN19-SO-000080 \u2014 Windows Server 2019 setting Domain member: Digitally sign secure channel data...", "description": "Windows Server 2019 setting Domain member: Digitally sign secure channel data (when possible) must be configured to Enabled.", "rational": "Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, outgoing secure channel traffic will be signed.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain member: Digitally sign secure channel data (when possible)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|SignSecureChannel", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "89665ec8a32d6d14dc96e4ce49e50080", "name": "WN19-SO-000110 \u2014 Windows Server 2019 must be configured to require a strong session key.", "description": "Windows Server 2019 must be configured to require a strong session key.", "rational": "A computer connecting to a domain controller will establish a secure channel. The secure channel connection may be subject to compromise, such as hijacking or eavesdropping, if strong session keys are not used to establish the connection. Requiring strong session keys enforces 128-bit encryption between systems.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain member: Require strong (Windows 2000 or Later) session key\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|RequireStrongKey", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e55a00ae2368362f7354645fd7acb7b3", "name": "WN19-SO-000160 \u2014 Windows Server 2019 setting Microsoft network client: Digitally sign communic...", "description": "Windows Server 2019 setting Microsoft network client: Digitally sign communications (always) must be configured to Enabled.", "rational": "The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB client will only communicate with an SMB server that performs SMB packet signing.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Microsoft network client: Digitally sign communications (always)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanmanWorkstation\\Parameters|RequireSecuritySignature", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "375a36737c6e6f24f5040a0d62e29070", "name": "WN19-SO-000170 \u2014 Windows Server 2019 setting Microsoft network client: Digitally sign communic...", "description": "Windows Server 2019 setting Microsoft network client: Digitally sign communications (if server agrees) must be configured to Enabled.", "rational": "The server message block (SMB) protocol provides the basis for many network operations. If this policy is enabled, the SMB client will request packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Microsoft network client: Digitally sign communications (if server agrees)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanmanWorkstation\\Parameters|EnableSecuritySignature", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "fa7fd8a4a45690d7363c8c655475a24c", "name": "WN19-SO-000190 \u2014 Windows Server 2019 setting Microsoft network server: Digitally sign communic...", "description": "Windows Server 2019 setting Microsoft network server: Digitally sign communications (always) must be configured to Enabled.", "rational": "The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will only communicate with an SMB client that performs SMB packet signing.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Microsoft network server: Digitally sign communications (always)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanManServer\\Parameters|RequireSecuritySignature", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b175229883bca4b43630985e39317a5d", "name": "WN19-SO-000200 \u2014 Windows Server 2019 setting Microsoft network server: Digitally sign communic...", "description": "Windows Server 2019 setting Microsoft network server: Digitally sign communications (if client agrees) must be configured to Enabled.", "rational": "The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will negotiate SMB packet signing as requested by the client.\n\nSatisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Microsoft network server: Digitally sign communications (if client agrees)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LanManServer\\Parameters|EnableSecuritySignature", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "efe8fcfb974043e2fe74de5e99c6dfd7", "name": "WN19-CC-000310 \u2014 Windows Server 2019 Explorer Data Execution Prevention must be enabled.", "description": "Windows Server 2019 Explorer Data Execution Prevention must be enabled.", "rational": "Data Execution Prevention provides additional protection by performing checks on memory to help prevent malicious code from running. This setting will prevent Data Execution Prevention from being turned off for File Explorer.", "remediation": "The default behavior is for data execution prevention to be turned on for File Explorer.\n\nIf this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> \"Turn off Data Execution Prevention for Explorer\" to \"Not Configured\" or \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Explorer|NoDataExecutionPrevention", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "23dc6b843b1802bf47386a7fdc3d5fdd", "name": "WN19-AU-000070 \u2014 Windows Server 2019 must be configured to audit Account Logon - Credential Va...", "description": "Windows Server 2019 must be configured to audit Account Logon - Credential Validation successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Logon >> \"Audit Credential Validation\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Credential Validation\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "fa8c88e03775687d952a9514bdd9cd9f", "name": "WN19-AU-000080 \u2014 Windows Server 2019 must be configured to audit Account Logon - Credential Va...", "description": "Windows Server 2019 must be configured to audit Account Logon - Credential Validation failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Account Logon >> \"Audit Credential Validation\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Credential Validation\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "724e528792e3094ea5bd3a3dcc56df11", "name": "WN19-AU-000170 \u2014 Windows Server 2019 must be configured to audit Logon/Logoff - Group Membersh...", "description": "Windows Server 2019 must be configured to audit Logon/Logoff - Group Membership successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> \"Audit Group Membership\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Group Membership\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d298b4b6c50a8effff8405db2f698cde", "name": "WN19-00-000110 \u2014 Windows Server 2019 must use an anti-virus program.", "description": "Windows Server 2019 must use an anti-virus program.", "rational": "Malicious software can establish a base on individual desktops and servers. Employing an automated mechanism to detect this type of software will aid in elimination of the software from the operating system.", "remediation": "If no anti-virus software is in use, install Windows Defender or third-party anti-virus.\n\nOpen \"PowerShell\".\n\nEnter \"Install-WindowsFeature -Name Windows-Defender\u201d.\n\nFor third-party anti-virus, install per anti-virus instructions and disable Windows Defender.\n\nOpen \"PowerShell\".\n\nEnter \"Uninstall-WindowsFeature -Name Windows-Defender\u201d.", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"(Get-Service -Name Like).Status\"", "selement": "OUTPUT", "condition": "EQUALS", "sinput": "Running" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "0ef30c8a8513bd53f76eb89ad51c7986", "name": "WN19-AU-000210 \u2014 Windows Server 2019 must be configured to audit Logon/Logoff - Special Logon ...", "description": "Windows Server 2019 must be configured to audit Logon/Logoff - Special Logon successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> \"Audit Special Logon\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Special Logon\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "0bc644b982d7d6f9a49885252ac6902c", "name": "WN19-AU-000220 \u2014 Windows Server 2019 must be configured to audit Object Access - Other Object ...", "description": "Windows Server 2019 must be configured to audit Object Access - Other Object Access Events successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Other Object Access Events\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Other Object Access Events\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "47443e52359d657c591acac9642512c0", "name": "WN19-AU-000230 \u2014 Windows Server 2019 must be configured to audit Object Access - Other Object ...", "description": "Windows Server 2019 must be configured to audit Object Access - Other Object Access Events failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Other Object Access Events\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Other Object Access Events\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "f752e134434af1235216c0b4c255f51b", "name": "WN19-AU-000180 \u2014 Windows Server 2019 must be configured to audit logoff successes.", "description": "Windows Server 2019 must be configured to audit logoff successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> \"Audit Logoff\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"logoff\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4556762736a3c84c7680105fc8f08eb3", "name": "WN19-AU-000130 \u2014 Windows Server 2019 must be configured to audit Detailed Tracking - Plug and ...", "description": "Windows Server 2019 must be configured to audit Detailed Tracking - Plug and Play Events successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Detailed Tracking >> \"Audit PNP Activity\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Plug and Play Events\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "018c92b3b47702f73134e075d61b7949", "name": "WN19-AU-000240 \u2014 Windows Server 2019 must be configured to audit Object Access - Removable Sto...", "description": "Windows Server 2019 must be configured to audit Object Access - Removable Storage successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Removable Storage\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Removable Storage\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "1d0ebfa3f86eb3999b1cd4da35c5986a", "name": "WN19-AU-000250 \u2014 Windows Server 2019 must be configured to audit Object Access - Removable Sto...", "description": "Windows Server 2019 must be configured to audit Object Access - Removable Storage failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Removable Storage\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"Removable Storage\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ee55a84c58577cb2987e22af82cbb650", "name": "WN19-SO-000360 \u2014 Windows Server 2019 must be configured to use FIPS-compliant algorithms for e...", "description": "Windows Server 2019 must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.", "rational": "This setting ensures the system uses algorithms that are FIPS-compliant for encryption, hashing, and signing. FIPS-compliant algorithms meet specific standards established by the U.S. Government and must be the algorithms used for all OS encryption functions.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa\\FIPSAlgorithmPolicy|Enabled", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5600dceb8d5c0c4cc8c9396d3fb013e0", "name": "WN19-00-000060 \u2014 Windows Server 2019 manually managed application account passwords must be ch...", "description": "Windows Server 2019 manually managed application account passwords must be changed at least annually or when a system administrator with knowledge of the password leaves the organization.", "rational": "Setting application account passwords to expire may cause applications to stop functioning. However, not changing them on a regular basis exposes them to attack. If managed service accounts are used, this alleviates the need to manually change application account passwords.", "remediation": "Change passwords for manually managed application/service accounts at least annually or when an administrator with knowledge of the password leaves the organization.\n\nIt is recommended that system-managed service accounts be used whenever possible.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-AdUser -Identity [application account name] -Properties PasswordLastSet | FT Name, PasswordLastSet\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4e0f45a8dd0622111c786a36b85b92d0", "name": "WN19-CC-000030 \u2014 Windows Server 2019 Internet Protocol version 6 (IPv6) source routing must be...", "description": "Windows Server 2019 Internet Protocol version 6 (IPv6) source routing must be configured to the highest protection level to prevent IP source routing.", "rational": "Configuring the system to disable IPv6 source routing protects against spoofing.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> \"MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing)\" to \"Enabled\" with \"Highest protection, source routing is completely disabled\" selected.\n\nThis policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. \"MSS-Legacy.admx\" and \"MSS-Legacy.adml\" must be copied to the \\Windows\\PolicyDefinition...", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Tcpip6\\Parameters|DisableIPSourceRouting", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "627fbfbb2fb66e797aa50d2dcc8f12f8", "name": "WN19-CC-000040 \u2014 Windows Server 2019 source routing must be configured to the highest protecti...", "description": "Windows Server 2019 source routing must be configured to the highest protection level to prevent Internet Protocol (IP) source routing.", "rational": "Configuring the system to disable IP source routing protects against spoofing.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> \"MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)\" to \"Enabled\" with \"Highest protection, source routing is completely disabled\" selected.\n\nThis policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. \"MSS-Legacy.admx\" and \"MSS-Legacy.adml\" must be copied to the \\Windows\\PolicyDefinitions and...", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters|DisableIPSourceRouting", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "be6c981ca0ae91772cd238abcb575e61", "name": "WN19-CC-000050 \u2014 Windows Server 2019 must be configured to prevent Internet Control Message Pr...", "description": "Windows Server 2019 must be configured to prevent Internet Control Message Protocol (ICMP) redirects from overriding Open Shortest Path First (OSPF)-generated routes.", "rational": "Allowing ICMP redirect of routes can lead to traffic not being routed properly. When disabled, this forces ICMP to be routed via the shortest path first.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> \"MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes\" to \"Disabled\".\n\nThis policy setting requires the installation of the MSS-Legacy custom templates included with the STIG package. \"MSS-Legacy.admx\" and \"MSS-Legacy.adml\" must be copied to the \\Windows\\PolicyDefinitions and \\Windows\\PolicyDefinitions\\en-US directories respectively.", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters|EnableICMPRedirect", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "17722126e2e186ae42084867ea26abde", "name": "WN19-CC-000070 \u2014 Windows Server 2019 insecure logons to an SMB server must be disabled.", "description": "Windows Server 2019 insecure logons to an SMB server must be disabled.", "rational": "Insecure guest logons allow unauthenticated access to shared folders. Shared resources on a system must require authentication to establish proper access.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Lanman Workstation >> \"Enable insecure guest logons\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\LanmanWorkstation|AllowInsecureGuestAuth", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "28a5b1d23b7f56f4d1cb96a342a96e0f", "name": "WN19-CC-000080 \u2014 Windows Server 2019 hardened Universal Naming Convention (UNC) paths must be ...", "description": "Windows Server 2019 hardened Universal Naming Convention (UNC) paths must be defined to require mutual authentication and integrity for at least the \\\\*\\SYSVOL and \\\\*\\NETLOGON shares.", "rational": "Additional security requirements are applied to UNC paths specified in hardened UNC paths before allowing access to them. This aids in preventing tampering with or spoofing of connections to these paths.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Network Provider >> \"Hardened UNC Paths\" to \"Enabled\" with at least the following configured in \"Hardened UNC Paths\" (click the \"Show\" button to display):\n\nValue Name: \\\\*\\SYSVOL\nValue: RequireMutualAuthentication=1, RequireIntegrity=1\n\nValue Name: \\\\*\\NETLOGON\nValue: RequireMutualAuthentication=1, RequireIntegrity=1", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\NetworkProvider\\HardenedPaths|\\\\*\\NETLOGON", "selement": "CONTENT", "condition": "EQUALS", "sinput": "RequireMutualAuthentication=1, RequireIntegrity=1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "a6f2da9ddf4d8428f9751dd7b5f3c52c", "name": "WN19-CC-000100 \u2014 Windows Server 2019 must be configured to enable Remote host allows delegatio...", "description": "Windows Server 2019 must be configured to enable Remote host allows delegation of non-exportable credentials.", "rational": "An exportable version of credentials is provided to remote hosts when using credential delegation which exposes them to theft on the remote host. Restricted Admin mode or Remote Credential Guard allow delegation of non-exportable credentials providing additional protection of the credentials. Enabling this configures the host to support Restricted Admin mode or Remote Credential Guard.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Credentials Delegation >> \"Remote host allows delegation of non-exportable credentials\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\CredentialsDelegation|AllowProtectedCreds", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "a3e8dd3da9e5ffe7684e33b6c7c2381e", "name": "WN19-CC-000110 \u2014 Windows Server 2019 virtualization-based security must be enabled with the pl...", "description": "Windows Server 2019 virtualization-based security must be enabled with the platform security level configured to Secure Boot or Secure Boot with DMA Protection.", "rational": "Virtualization-based security (VBS) provides the platform for the additional security features Credential Guard and virtualization-based protection of code integrity. Secure Boot is the minimum security level, with DMA protection providing additional memory protection. DMA Protection requires a CPU that supports input/output memory management unit (IOMMU).", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Device Guard >> \"Turn On Virtualization Based Security\" to \"Enabled\" with \"Secure Boot\" or \"Secure Boot and DMA Protection\" selected.\n\nA Microsoft TechNet article on Credential Guard, including system requirement details, can be found at the following link:\n\nhttps://technet.microsoft.com/itpro/windows/keep-secure/credential-guard", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\DeviceGuard|EnableVirtualizationBasedSecurity", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ad8f9e2d59f1729dacef2a90d57bec63", "name": "WN19-CC-000130 \u2014 Windows Server 2019 Early Launch Antimalware, Boot-Start Driver Initializatio...", "description": "Windows Server 2019 Early Launch Antimalware, Boot-Start Driver Initialization Policy must prevent boot drivers identified as bad.", "rational": "Compromised boot drivers can introduce malware prior to protection mechanisms that load after initialization. The Early Launch Antimalware driver can limit allowed drivers based on classifications determined by the malware protection application. At a minimum, drivers determined to be bad must not be allowed.", "remediation": "The default behavior is for Early Launch Antimalware - Boot-Start Driver Initialization policy to enforce \"Good, unknown and bad but critical\" (preventing \"bad\").\n\nIf this needs to be corrected or a more secure setting is desired, configure the policy value for Computer Configuration >> Administrative Templates >> System >> Early Launch Antimalware >> \"Boot-Start Driver Initialization Policy\" to \"Not Configured\" or \"Enabled\" with any option other than \"All\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Policies\\EarlyLaunch|DriverLoadPolicy", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "98d13ef5ed49907c0bee18921c9d4837", "name": "WN19-CC-000140 \u2014 Windows Server 2019 group policy objects must be reprocessed even if they hav...", "description": "Windows Server 2019 group policy objects must be reprocessed even if they have not changed.", "rational": "Registry entries for group policy settings can potentially be changed from the required configuration. This could occur as part of troubleshooting or by a malicious process on a compromised system. Enabling this setting and then selecting the \"Process even if the Group Policy objects have not changed\" option ensures the policies will be reprocessed even if none have been changed. This way, any...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Group Policy >> \"Configure registry policy processing\" to \"Enabled\" with the option \"Process even if the Group Policy objects have not changed\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Group Policy\\{35378EAC-683F-11D2-A89A-00C04FBBCFA2}|NoGPOListChanges", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d2faf9c2b14e51e07676d0392b134eb7", "name": "WN19-CC-000180 \u2014 Windows Server 2019 users must be prompted to authenticate when the system wa...", "description": "Windows Server 2019 users must be prompted to authenticate when the system wakes from sleep (on battery).", "rational": "A system that does not require authentication when resuming from sleep may provide access to unauthorized users. Authentication must always be required when accessing a system. This setting ensures users are prompted for a password when the system wakes from sleep (on battery).", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Power Management >> Sleep Settings >> \"Require a password when a computer wakes (on battery)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Power\\PowerSettings\\0e796bdb-100d-47d6-a2d5-f7d2daa51f51|DCSettingIndex", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "19dce7751081124fd249b41ffdacc440", "name": "WN19-CC-000190 \u2014 Windows Server 2019 users must be prompted to authenticate when the system wa...", "description": "Windows Server 2019 users must be prompted to authenticate when the system wakes from sleep (plugged in).", "rational": "A system that does not require authentication when resuming from sleep may provide access to unauthorized users. Authentication must always be required when accessing a system. This setting ensures users are prompted for a password when the system wakes from sleep (plugged in).", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Power Management >> Sleep Settings >> \"Require a password when a computer wakes (plugged in)\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Power\\PowerSettings\\0e796bdb-100d-47d6-a2d5-f7d2daa51f51|ACSettingIndex", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "11813a382c3e3f1f343220efae1c329c", "name": "WN19-SO-000280 \u2014 Windows Server 2019 must prevent PKU2U authentication using online identities.", "description": "Windows Server 2019 must prevent PKU2U authentication using online identities.", "rational": "PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-joined systems. Authentication will be centrally managed with Windows user accounts.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Allow PKU2U authentication requests to this computer to use online identities\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\LSA\\pku2u|AllowOnlineID", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ac2be54823e262ff90e6dd37e8af763b", "name": "WN19-CC-000250 \u2014 Windows Server 2019 Telemetry must be configured to Security or Basic.", "description": "Windows Server 2019 Telemetry must be configured to Security or Basic.", "rational": "Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Limiting this capability will prevent potentially sensitive information from being sent outside the enterprise. The \"Security\" option for Telemetry configures the lowest amount of data, effectively none outside of the Malicious Software Removal Tool (MSRT), Defender, and...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Data Collection >> \"Allow Telemetry\" to \"Enabled\" with \"0 - Security [Enterprise Only]\" or \"1 - Basic\" selected in \"Options\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\DataCollection|AllowTelemetry", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d00553d830ae2f5fc76d2bed4267dab8", "name": "WN19-CC-000260 \u2014 Windows Server 2019 Windows Update must not obtain updates from other PCs on ...", "description": "Windows Server 2019 Windows Update must not obtain updates from other PCs on the Internet.", "rational": "Windows Update can obtain updates from additional sources instead of Microsoft. In addition to Microsoft, updates can be obtained from and sent to PCs on the local network as well as on the Internet. This is part of the Windows Update trusted process, however to minimize outside exposure, obtaining updates from or sending to systems on the Internet must be prevented.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Delivery Optimization >> \"Download Mode\" to \"Enabled\" with any option except \"Internet\" selected.\n\nAcceptable selections include:\n\nBypass (100)\nGroup (2)\nHTTP only (0)\nLAN (1)\nSimple (99)", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\DeliveryOptimization|DODownloadMode", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c75355b98e8b3f2a11a0966d92778280", "name": "WN19-CC-000320 \u2014 Windows Server 2019 Turning off File Explorer heap termination on corruption ...", "description": "Windows Server 2019 Turning off File Explorer heap termination on corruption must be disabled.", "rational": "Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.", "remediation": "The default behavior is for File Explorer heap termination on corruption to be disabled.\n\nIf this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> \"Turn off heap termination on corruption\" to \"Not Configured\" or \"Disabled\".", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Explorer|NoHeapTerminationOnCorruption", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "93619cb44db1ee615e7e3c696e96885f", "name": "WN19-CC-000330 \u2014 Windows Server 2019 File Explorer shell protocol must run in protected mode.", "description": "Windows Server 2019 File Explorer shell protocol must run in protected mode.", "rational": "The shell protocol will limit the set of folders that applications can open when run in protected mode. Restricting files an application can open to a limited set of folders increases the security of Windows.", "remediation": "The default behavior is for shell protected mode to be turned on for File Explorer.\n\nIf this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> \"Turn off shell protocol protected mode\" to \"Not Configured\" or \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer|PreXPSP2ShellProtocolBehavior", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "234f4720d95f6d6a7096968ad389e1fb", "name": "WN19-CC-000390 \u2014 Windows Server 2019 must prevent attachments from being downloaded from RSS f...", "description": "Windows Server 2019 must prevent attachments from being downloaded from RSS feeds.", "rational": "Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> RSS Feeds >> \"Prevent downloading of enclosures\" to \"Enabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Internet Explorer\\Feeds|DisableEnclosureDownload", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "25fd590b0ed0aba4cb0fd57a9d2c7665", "name": "WN19-SO-000150 \u2014 Windows Server 2019 Smart Card removal option must be configured to Force Log...", "description": "Windows Server 2019 Smart Card removal option must be configured to Force Logoff or Lock Workstation.", "rational": "Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is removed will ensure the system is inaccessible when unattended.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Interactive logon: Smart card removal behavior\" to \"Lock Workstation\" or \"Force Logoff\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon|scremoveoption", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1 (Lock Workstation) or 2 (Force Logoff)" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b54c0b726be541348d01deb0891aac8a", "name": "WN19-CC-000440 \u2014 Windows Server 2019 users must be notified if a web-based program attempts to...", "description": "Windows Server 2019 users must be notified if a web-based program attempts to install software.", "rational": "Web-based programs may attempt to install malicious software on a system. Ensuring users are notified if a web-based program attempts to install software allows them to refuse the installation.", "remediation": "The default behavior is for Internet Explorer to warn users and select whether to allow or refuse installation when a web-based program attempts to install software on the system.\n\nIf this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> \"Prevent Internet Explorer security prompt for Windows Installer scripts\" to \"Not Configured\" or \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\Installer|SafeForScripting", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d673f0f5777b9b42110edc4b0121edd5", "name": "WN19-DC-000330 \u2014 Windows Server 2019 domain controllers must be configured to allow reset of m...", "description": "Windows Server 2019 domain controllers must be configured to allow reset of machine account passwords.", "rational": "Enabling this setting on all domain controllers in a domain prevents domain members from changing their computer account passwords. If these passwords are weak or compromised, the inability to change them may leave these computers vulnerable.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain controller: Refuse machine account password changes\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|RefusePasswordChange", "selement": "CONTENT", "condition": "EQUALS", "sinput": "0" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "2272b562027321906cc858bd6b3dc256", "name": "WN19-DC-000430 \u2014 The password for the krbtgt account on a domain must be reset at least every ...", "description": "The password for the krbtgt account on a domain must be reset at least every 180 days.", "rational": "The krbtgt account acts as a service account for the Kerberos Key Distribution Center (KDC) service. The account and password are created when a domain is created and the password is typically not changed. If the krbtgt account is compromised, attackers can create valid Kerberos Ticket Granting Tickets (TGT).\n\nThe password must be changed twice to effectively remove the password history. Chan...", "remediation": "Reset the password for the krbtgt account a least every 180 days. The password must be changed twice to effectively remove the password history. Changing once, waiting for replication to complete and changing again reduces the risk of issues. Changing twice in rapid succession forces clients to reauthenticate (including application services) but is desired if a compromise is suspected.\n\nPowerShell scripts are available to accomplish this such as at the following link:\n\nhttps://docs.microsoft....", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "powershell -NoProfile -Command \"Get-ADUser krbtgt -Property PasswordLastSet\"", "selement": "OUTPUT", "condition": "NOT EQUALS", "sinput": "" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5253b9ebb6d60df0d8b143a7331d5772", "name": "WN19-MS-000050 \u2014 Windows Server 2019 must limit the caching of logon credentials to four or le...", "description": "Windows Server 2019 must limit the caching of logon credentials to four or less on domain-joined member servers.", "rational": "The default Windows configuration caches the last logon credentials for users who log on interactively to a system. This feature is provided for system availability reasons, such as the user's machine being disconnected from the network or domain controllers being unavailable. Even though the credential cache is well protected, if a system is attacked, an unauthorized individual may isolate the...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Interactive Logon: Number of previous logons to cache (in case Domain Controller is not available)\" to \"4\" logons or less.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon|CachedLogonsCount", "selement": "CONTENT", "condition": "EQUALS", "sinput": "4 (or less)" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ebbbeade680e85dd9f12c8e4a63957e5", "name": "WN19-MS-000140 \u2014 Windows Server 2019 must be running Credential Guard on domain-joined member ...", "description": "Windows Server 2019 must be running Credential Guard on domain-joined member servers.", "rational": "Credential Guard uses virtualization-based security to protect data that could be used in credential theft attacks if compromised. This authentication information, which was stored in the Local Security Authority (LSA) in previous versions of Windows, is isolated from the rest of operating system and can only be accessed by privileged system software.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Device Guard >> \"Turn On Virtualization Based Security\" to \"Enabled\" with \"Enabled with UEFI lock\" selected for \"Credential Guard Configuration\".\n\nA Microsoft article on Credential Guard system requirement can be found at the following link:\n\nhttps://docs.microsoft.com/en-us/windows/security/identity-protection/credential-guard/credential-guard-requirements\n\nSeverity Override Guidance: The AO can al...", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\DeviceGuard|LsaCfgFlags", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "4c4ef37beedda4a89f9958639e3de8b8", "name": "WN19-SO-000020 \u2014 Windows Server 2019 must prevent local accounts with blank passwords from bei...", "description": "Windows Server 2019 must prevent local accounts with blank passwords from being used from the network.", "rational": "An account without a password can allow unauthorized access to a system as only the username would be required. Password policies should prevent accounts with blank passwords from existing on a system. However, if a local account with a blank password does exist, enabling this setting will prevent network access, limiting the account to local console logon only.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Accounts: Limit local account use of blank passwords to console logon only\" to \"Enabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|LimitBlankPasswordUse", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "7c649b03ab6716b801dbb8758019cf19", "name": "WN19-SO-000100 \u2014 Windows Server 2019 maximum age for machine account passwords must be configu...", "description": "Windows Server 2019 maximum age for machine account passwords must be configured to 30 days or less.", "rational": "Computer account passwords are changed automatically on a regular basis. This setting controls the maximum password age that a machine account may have. This must be set to no more than 30 days, ensuring the machine changes its password monthly.", "remediation": "This is the default configuration for this setting (30 days).\n\nConfigure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Domain member: Maximum machine account password age\" to \"30\" or less (excluding \"0\", which is unacceptable).", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters|MaximumPasswordAge", "selement": "CONTENT", "condition": "EQUALS", "sinput": "30" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "25d552b797b9e5768f7330e3659aef1a", "name": "WN19-SO-000220 \u2014 Windows Server 2019 must not allow anonymous enumeration of Security Account ...", "description": "Windows Server 2019 must not allow anonymous enumeration of Security Account Manager (SAM) accounts.", "rational": "Anonymous enumeration of SAM accounts allows anonymous logon users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network access: Do not allow anonymous enumeration of SAM accounts\" to \"Enabled\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|RestrictAnonymousSAM", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "6743b83389b170c22c03b3b0c97e1d35", "name": "WN19-SO-000310 \u2014 Windows Server 2019 LAN Manager authentication level must be configured to se...", "description": "Windows Server 2019 LAN Manager authentication level must be configured to send NTLMv2 response only and to refuse LM and NTLM.", "rational": "The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM, which is less secure, is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows or applications that still use it. It is also used to authenticate logons to standalone or nondomain-joined computers tha...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: LAN Manager authentication level\" to \"Send NTLMv2 response only. Refuse LM & NTLM\".", "severity": "High", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa|LmCompatibilityLevel", "selement": "CONTENT", "condition": "EQUALS", "sinput": "5" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "c18814ae891ef842b1d6e0e489d0f745", "name": "WN19-SO-000320 \u2014 Windows Server 2019 must be configured to at least negotiate signing for LDAP...", "description": "Windows Server 2019 must be configured to at least negotiate signing for LDAP client signing.", "rational": "This setting controls the signing requirements for LDAP clients. This must be set to \"Negotiate signing\" or \"Require signing\", depending on the environment and type of LDAP server in use.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: LDAP client signing requirements\" to \"Negotiate signing\" at a minimum.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\LDAP|LDAPClientIntegrity", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "a467a547bf8f12e7f073b37c4f0cf8db", "name": "WN19-SO-000330 \u2014 Windows Server 2019 session security for NTLM SSP-based clients must be confi...", "description": "Windows Server 2019 session security for NTLM SSP-based clients must be configured to require NTLMv2 session security and 128-bit encryption.", "rational": "Microsoft has implemented a variety of security support providers for use with Remote Procedure Call (RPC) sessions. All of the options must be enabled to ensure the maximum security level.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Minimum session security for NTLM SSP based (including secure RPC) clients\" to \"Require NTLMv2 session security\" and \"Require 128-bit encryption\" (all options selected).", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa\\MSV1_0|NTLMMinClientSec", "selement": "CONTENT", "condition": "EQUALS", "sinput": "537395200" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "a8c773271ea5724e1622af469984de7e", "name": "WN19-SO-000340 \u2014 Windows Server 2019 session security for NTLM SSP-based servers must be confi...", "description": "Windows Server 2019 session security for NTLM SSP-based servers must be configured to require NTLMv2 session security and 128-bit encryption.", "rational": "Microsoft has implemented a variety of security support providers for use with Remote Procedure Call (RPC) sessions. All of the options must be enabled to ensure the maximum security level.", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"Network security: Minimum session security for NTLM SSP based (including secure RPC) servers\" to \"Require NTLMv2 session security\" and \"Require 128-bit encryption\" (all options selected).", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Lsa\\MSV1_0|NTLMMinServerSec", "selement": "CONTENT", "condition": "EQUALS", "sinput": "537395200" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "d4209581e5bf411d2415f48b2e7770c0", "name": "WN19-SO-000370 \u2014 Windows Server 2019 default permissions of global system objects must be stre...", "description": "Windows Server 2019 default permissions of global system objects must be strengthened.", "rational": "Windows systems maintain a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default Discretionary Access Control List (DACL) that specifies who can access the objects with what permissions. When this policy is enabled, the default DACL is stronger, allowing non-administrative users to read shared objects but not to m...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> \"System objects: Strengthen default permissions of internal system objects (e.g., Symbolic Links)\" to \"Enabled\".", "severity": "Low", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Session Manager|ProtectionMode", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "958d46853db10dacddae960792752a0f", "name": "WN19-UC-000010 \u2014 Windows Server 2019 must preserve zone information when saving attachments.", "description": "Windows Server 2019 must preserve zone information when saving attachments.", "rational": "Attachments from outside sources may contain malicious code. Preserving zone of origin (Internet, intranet, local, restricted) information on file attachments allows Windows to determine risk.", "remediation": "The default behavior is for Windows to mark file attachments with their zone information.\n\nIf this needs to be corrected, configure the policy value for User Configuration >> Administrative Templates >> Windows Components >> Attachment Manager >> \"Do not preserve zone information in file attachments\" to \"Not Configured\" or \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKCU\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\Attachments|SaveZoneInformation", "selement": "CONTENT", "condition": "EQUALS", "sinput": "2" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "9c5cb88ac2fde3167f6a58fff5949ab7", "name": "WN19-CC-000450 \u2014 Windows Server 2019 must disable automatically signing in the last interactiv...", "description": "Windows Server 2019 must disable automatically signing in the last interactive user after a system-initiated restart.", "rational": "Windows can be configured to automatically sign the user back in after a Windows Update restart. Some protections are in place to help ensure this is done in a secure fashion; however, disabling this will prevent the caching of credentials for this purpose and also ensure the user is aware of the restart.", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Logon Options >> \"Sign-in last interactive user automatically after a system-initiated restart\" to \"Disabled\".", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Policies\\System|DisableAutomaticRestartSignOn", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "e04a1f313bbd9daa2c9347ae6b590ece", "name": "WN19-CC-000530 \u2014 Windows Server 2019 must have PowerShell Transcription enabled.", "description": "Windows Server 2019 must have PowerShell Transcription enabled.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows PowerShell >> \"Turn on PowerShell Transcription\" to \"Enabled\".\n\nSpecify the Transcript output directory to point to a Central Log Server or another secure location to prevent user access.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SOFTWARE\\Policies\\Microsoft\\Windows\\PowerShell\\Transcription|EnableTranscripting", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "60ccffdc3152465b84733eae39f0d9e8", "name": "WN19-DC-000391 \u2014 Windows Server 2019 must be configured for certificate-based authentication f...", "description": "Windows Server 2019 must be configured for certificate-based authentication for domain controllers.", "rational": "Active Directory domain services elevation of privilege vulnerability could allow a user rights to the system, such as administrative and other high-level capabilities.", "remediation": "Configure the registry value.\nRegistry Hive: HKEY_LOCAL_MACHINE\nRegistry Path: SYSTEM\\CurrentControlSet\\Services\\Kdc\n \nValue Name: StrongCertificateBindingEnforcement\n \nValue Type: REG_DWORD\nValue: 0x00000001 (1) or 0x00000002 (2)", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "REGISTRY", "input": "HKLM\\SYSTEM\\CurrentControlSet\\Services\\Kdc|StrongCertificateBindingEnforcement", "selement": "CONTENT", "condition": "EQUALS", "sinput": "1" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "50bcd11474e98f0a9dc6110913d670b5", "name": "WN19-AU-000581 \u2014 Windows Server 2019 must be configured to audit file system failures.", "description": "Windows Server 2019 must be configured to audit file system failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit File System\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"file system\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "5fd80a66351a2cf93a93dabeff4a706a", "name": "WN19-AU-000582 \u2014 Windows Server 2019 must be configured to audit file system successes.", "description": "Windows Server 2019 must be configured to audit file system successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit File System\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"file system\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "b5172c0f1b24ebc233b1116f6fe1208d", "name": "WN19-AU-000583 \u2014 Windows Server 2019 must be configured to audit handle manipulation failures.", "description": "Windows Server 2019 must be configured to audit handle manipulation failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Handle Manipulation\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"handle manipulation\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "daa58b1cc3d42498e8a6fcb631c2d76d", "name": "WN19-AU-000584 \u2014 Windows Server 2019 must be configured to audit handle manipulation successes.", "description": "Windows Server 2019 must be configured to audit handle manipulation successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Handle Manipulation\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"handle manipulation\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "0403d97014ad5cc570abbe07e7c3f83c", "name": "WN19-AU-000585 \u2014 Windows Server 2019 must be configured to audit registry failures.", "description": "Windows Server 2019 must be configured to audit registry failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Registry\" with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"registry\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "8a8e96554f52bb3fdb0573ab9481f380", "name": "WN19-AU-000586 \u2014 Windows Server 2019 must be configured to audit registry successes.", "description": "Windows Server 2019 must be configured to audit registry successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> \"Audit Registry\" with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"registry\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ff837a7795b65e4e5216f792f3afe6c6", "name": "WN19-AU-000587 \u2014 Windows Server 2019 must be configured to audit sensitive privilege use succe...", "description": "Windows Server 2019 must be configured to audit sensitive privilege use successes.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Privilege Use >> Audit Sensitive Privilege Use with \"Success\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"sensitive privilege use\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Success" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] }, { "external_id": "ed36e5e3d16fe6284432ba4030ad4958", "name": "WN19-AU-000588 \u2014 Windows Server 2019 must be configured to audit sensitive privilege use failu...", "description": "Windows Server 2019 must be configured to audit sensitive privilege use failures.", "rational": "Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting si...", "remediation": "Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Privilege Use >> Audit Sensitive Privilege Use with \"Failure\" selected.", "severity": "Medium", "filter": null, "app_filter": null, "conditions": [ { "type": "condition", "element": "CMD", "input": "auditpol /get /subcategory:\"sensitive privilege use\"", "selement": "OUTPUT", "condition": "CONTAINS", "sinput": "Failure" } ], "applicability": [ { "type": "applicability", "element": "OS", "input": "", "selement": "CONTENT", "condition": "CONTAINS", "sinput": "Windows" } ] } ] }