Microsoft Windows 11 Security Technical Implementation Guide

  • Version/Release: V1R5
  • Published: 2023-09-29
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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.
b
Domain-joined systems must use Windows 11 Enterprise Edition 64-bit version.
CM-6 - Medium - CCI-000366 - V-253254 - SV-253254r828846_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000005
Vuln IDs
  • V-253254
Rule IDs
  • SV-253254r828846_rule
Features such as Credential Guard use virtualization-based security to protect information that could be used in credential theft attacks if compromised. There are a number of system requirements that must be met in order for Credential Guard to be configured and enabled properly. Virtualization-based security and Credential Guard are only available with Windows 11 Enterprise 64-bit version.
Checks: C-56707r828844_chk

Verify domain-joined systems are using Windows 11 Enterprise Edition 64-bit version. For standalone systems, this is NA. Open "Settings". Select "System", then "About". If "Edition" is not "Windows 11 Enterprise", this is a finding. If "System type" is not "64-bit operating system...", this is a finding.

Fix: F-56657r828845_fix

Use Windows 11 Enterprise 64-bit version for domain-joined systems.

b
Windows 11 domain-joined systems must have a Trusted Platform Module (TPM) enabled.
SC-8 - Medium - CCI-002421 - V-253255 - SV-253255r877465_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002421
Version
WN11-00-000010
Vuln IDs
  • V-253255
Rule IDs
  • SV-253255r877465_rule
Credential Guard uses virtualization-based security to protect information that could be used in credential theft attacks if compromised. There are a number of system requirements that must be met in order for Credential Guard to be configured and enabled properly. Without a TPM enabled and ready for use, Credential Guard keys are stored in a less secure method using software.
Checks: C-56708r828847_chk

Verify domain-joined systems have a TPM enabled and ready for use. For standalone systems, this is NA. Virtualization-based security, including Credential Guard, currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Verify the system has a TPM and is ready for use. Run "tpm.msc". Review the sections in the center pane. "Status" must indicate it has been configured with a message such as "The TPM is ready for use" or "The TPM is on and ownership has been taken". TPM Manufacturer Information - Specific Version = 2.0 If a TPM is not found or is not ready for use, this is a finding.

Fix: F-56658r828848_fix

For standalone systems, this is NA. Virtualization-based security, including Credential Guard, currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Ensure domain-joined systems must have a TPM that is configured for use. (Versions 2.0 support Credential Guard.) The TPM must be enabled in the firmware. Run "tpm.msc" for configuration options in Windows.

b
Windows 11 systems must have Unified Extensible Firmware Interface (UEFI) firmware and be configured to run in UEFI mode, not Legacy BIOS.
SC-8 - Medium - CCI-002421 - V-253256 - SV-253256r877465_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002421
Version
WN11-00-000015
Vuln IDs
  • V-253256
Rule IDs
  • SV-253256r877465_rule
UEFI provides additional security features in comparison to legacy BIOS firmware, including Secure Boot. UEFI is required to support additional security features in Windows 11, including virtualization-based Security and Credential Guard. Systems with UEFI that are operating in Legacy BIOS mode will not support these security features.
Checks: C-56709r828850_chk

For virtual desktop implementations (VDIs) where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Verify the system firmware is configured to run in UEFI mode, not Legacy BIOS. Run "System Information". Under "System Summary", if "BIOS Mode" does not display "UEFI", this is a finding.

Fix: F-56659r828851_fix

Configure UEFI firmware to run in UEFI mode, not Legacy BIOS mode.

b
Secure Boot must be enabled on Windows 11 systems.
SC-8 - Medium - CCI-002421 - V-253257 - SV-253257r877465_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002421
Version
WN11-00-000020
Vuln IDs
  • V-253257
Rule IDs
  • SV-253257r877465_rule
Secure Boot is a standard that ensures systems boot only to a trusted operating system. Secure Boot is required to support additional security features in Windows 11, including virtualization-based Security and Credential Guard. If Secure Boot is turned off, these security features will not function.
Checks: C-56710r828853_chk

Verify the system firmware is configured for Secure Boot. For virtual desktop implementations (VDIs) where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Run "System Information". Under "System Summary", if "Secure Boot State" does not display "On", this is a finding.

Fix: F-56660r828854_fix

Enable Secure Boot in the system firmware.

b
Windows 11 must employ automated mechanisms to determine the state of system components with regard to flaw remediation using the following frequency: continuously, where ESS is used; 30 days, for any additional internal network scans not covered by ESS; and annually, for external scans by Computer Network Defense Service Provider (CNDSP).
SI-2 - Medium - CCI-001233 - V-253258 - SV-253258r828858_rule
RMF Control
SI-2
Severity
Medium
CCI
CCI-001233
Version
WN11-00-000025
Vuln IDs
  • V-253258
Rule IDs
  • SV-253258r828858_rule
An approved tool for continuous network scanning must be installed and configured to run. Without the use of automated mechanisms to scan for security flaws on a continuous and/or periodic basis, the operating system or other system components may remain vulnerable to the exploits presented by undetected software flaws. To support this requirement, the operating system may have an integrated solution incorporating continuous scanning using ESS and periodic scanning using other tools, as specified in the requirement.
Checks: C-56711r828856_chk

Verify DoD-approved ESS software is installed and properly operating. Ask the site ISSM for documentation of the ESS software installation and configuration. If the ISSM is not able to provide a documented configuration for an installed ESS or if the ESS software is not properly maintained or used, this is a finding. Note: Example of documentation can be a copy of the site's CCB approved Software Baseline with version of software noted or a memo from the ISSM stating current ESS software and version.

Fix: F-56661r828857_fix

Install DoD-approved ESS software and ensure it is operating continuously.

b
Windows 11 information systems must use BitLocker to encrypt all disks to protect the confidentiality and integrity of all information at rest.
SC-28 - Medium - CCI-002475 - V-253259 - SV-253259r877379_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-002475
Version
WN11-00-000030
Vuln IDs
  • V-253259
Rule IDs
  • SV-253259r877379_rule
If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can remove non-volatile memory and read it directly, thereby circumventing operating system controls. Encrypting the data ensures that confidentiality is protected even when the operating system is not running.
Checks: C-56712r828859_chk

Verify all Windows 11 information systems (including SIPRNet) employ BitLocker for full disk encryption. For virtual desktop implementations (VDIs) in which the virtual desktop instance is deleted or refreshed upon logoff, this is NA. For AVD implementations with no data at rest, this is NA. If full disk encryption using BitLocker is not implemented, this is a finding. Verify BitLocker is turned on for the operating system drive and any fixed data drives. Open "BitLocker Drive Encryption" from the Control Panel. If the operating system drive or any fixed data drives have "Turn on BitLocker", this is a finding. Note: An alternate encryption application may be used in lieu of BitLocker providing it is configured for full disk encryption and satisfies the pre-boot authentication requirements (WN11-00-000031 and WN11-00-000032).

Fix: F-56662r828860_fix

Enable full disk encryption on all information systems (including SIPRNet) using BitLocker. BitLocker, included in Windows, can be enabled in the Control Panel under "BitLocker Drive Encryption" as well as other management tools. Note: An alternate encryption application may be used in lieu of BitLocker providing it is configured for full disk encryption and satisfies the pre-boot authentication requirements (WN11-00-000031 and WN11-00-000032).

b
Windows 11 systems must use a BitLocker PIN for pre-boot authentication.
SC-28 - Medium - CCI-002476 - V-253260 - SV-253260r877378_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-002476
Version
WN11-00-000031
Vuln IDs
  • V-253260
Rule IDs
  • SV-253260r877378_rule
If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can remove non-volatile memory and read it directly, thereby circumventing operating system controls. Encrypting the data ensures that confidentiality is protected even when the operating system is not running. Pre-boot authentication prevents unauthorized users from accessing encrypted drives.
Checks: C-56713r828862_chk

If the following registry value does not exist or is not configured as specified, this is a finding: For virtual desktop implementations (VDIs) in which the virtual desktop instance is deleted or refreshed upon logoff, this is NA. For AVD implementations with no data at rest, this is NA. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\FVE\ Value Name: UseAdvancedStartup Type: REG_DWORD Value: 0x00000001 (1) If one of the following registry values does not exist or is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\FVE\ Value Name: UseTPMPIN Type: REG_DWORD Value: 0x00000001 (1) Value Name: UseTPMKeyPIN Type: REG_DWORD Value: 0x00000001 (1) When BitLocker network unlock is used: Value Name: UseTPMPIN Type: REG_DWORD Value: 0x00000002 (2) Value Name: UseTPMKeyPIN Type: REG_DWORD Value: 0x00000002 (2) BitLocker network unlock may be used in conjunction with a BitLocker PIN. See the article below regarding information about network unlock. https://docs.microsoft.com/en-us/windows/security/information-protection/bitlocker/bitlocker-how-to-enable-network-unlock

Fix: F-56663r828863_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> BitLocker Drive Encryption >> Operating System Drives "Require additional authentication at startup" to "Enabled" with "Configure TPM Startup PIN:" set to "Require startup PIN with TPM" or with "Configure TPM startup key and PIN:" set to "Require startup key and PIN with TPM".

b
Windows 11 systems must use a BitLocker PIN with a minimum length of six digits for pre-boot authentication.
IA-8 - Medium - CCI-000804 - V-253261 - SV-253261r828867_rule
RMF Control
IA-8
Severity
Medium
CCI
CCI-000804
Version
WN11-00-000032
Vuln IDs
  • V-253261
Rule IDs
  • SV-253261r828867_rule
If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can remove non-volatile memory and read it directly, thereby circumventing operating system controls. Encrypting the data ensures that confidentiality is protected even when the operating system is not running. Pre-boot authentication prevents unauthorized users from accessing encrypted drives. Increasing the pin length requires a greater number of guesses for an attacker.
Checks: C-56714r828865_chk

If the following registry value does not exist or is not configured as specified, this is a finding: For virtual desktop implementations (VDIs) in which the virtual desktop instance is deleted or refreshed upon logoff, this is NA. For AVD implementations with no data at rest, this is NA. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\FVE\ Value Name: MinimumPIN Type: REG_DWORD Value: 0x00000006 (6) or greater

Fix: F-56664r828866_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> BitLocker Drive Encryption >> Operating System Drives "Configure minimum PIN length for startup" to "Enabled" with "Minimum characters:" set to "6" or greater.

b
The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
CM-7 - Medium - CCI-001774 - V-253262 - SV-253262r890447_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-001774
Version
WN11-00-000035
Vuln IDs
  • V-253262
Rule IDs
  • SV-253262r890447_rule
Utilizing an allowlist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authorized software programs and only permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as allowlisting.
Checks: C-56715r890445_chk

This is applicable to unclassified systems. Verify the operating system employs a deny-all, permit-by-exception policy to allow the execution of authorized software programs. This must include packaged apps such as the universal apps installed by default on systems. If an application allowlisting program is not in use on the system, this is a finding. Configuration of allowlisting applications will vary by the program. AppLocker is an allowlisting application built into Windows 11 Enterprise. A deny-by-default implementation is initiated by enabling any AppLocker rules within a category, only allowing what is specified by defined rules. If AppLocker is used, perform the following to view the configuration of AppLocker: Run "PowerShell". Execute the following command, substituting [c:\temp\file.xml] with a location and file name appropriate for the system: Get-AppLockerPolicy -Effective -XML > c:\temp\file.xml This will produce an xml file with the effective settings that can be viewed in a browser or opened in a program such as Excel for review. Implementation guidance for AppLocker is available at the following link: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/applocker/applocker-policies-deployment-guide

Fix: F-56665r890446_fix

Configure an application allowlisting program to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. Configuration of allowlisting applications will vary by the program. AppLocker is an allowlisting application built into Windows 11 Enterprise. If AppLocker is used, it is configured through group policy in Computer Configuration >> Windows Settings >> Security Settings >> Application Control Policies >> AppLocker. Implementation guidance for AppLocker is available in the NSA paper "Application allowlisting using Microsoft AppLocker" at the following link: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/applocker/applocker-policies-deployment-guide

c
Windows 11 systems must be maintained at a supported servicing level.
CM-6 - High - CCI-000366 - V-253263 - SV-253263r828873_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN11-00-000040
Vuln IDs
  • V-253263
Rule IDs
  • SV-253263r828873_rule
Windows 11 is maintained by Microsoft at servicing levels for specific periods of time to support Windows as a Service. Systems at unsupported servicing levels or releases will not receive security updates for new vulnerabilities which leaves them subject to exploitation. New versions with feature updates are planned to be released on a semi-annual basis with an estimated support timeframe of 18 to 30 months depending on the release. Support for previously released versions has been extended for Enterprise editions. A separate servicing branch intended for special purpose systems is the Long-Term Servicing Channel (LTSC, formerly Branch - LTSB) which will receive security updates for 10 years but excludes feature updates.
Checks: C-56716r828871_chk

Run "winver.exe". If the "About Windows" dialog box does not display "Microsoft Windows 11 Version 21H2 (OS Build 22000.348)" or greater, this is a finding.

Fix: F-56666r828872_fix

Update systems on the Semi-Annual Channel to "Microsoft Windows 11 Version 21H2 (OS Build 22000.348)" or greater.

c
The Windows 11 system must use an antivirus program.
CM-6 - High - CCI-000366 - V-253264 - SV-253264r828876_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN11-00-000045
Vuln IDs
  • V-253264
Rule IDs
  • SV-253264r828876_rule
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.
Checks: C-56717r828874_chk

Verify an antivirus solution is installed on the system and in use. The antivirus solution may be bundled with an approved Endpoint Security Solution. Verify if Microsoft Defender Antivirus is in use or enabled: Open "PowerShell". Enter "get-service | where {$_.DisplayName -Like "*Defender*"} | Select Status,DisplayName" Verify third-party antivirus is in use or enabled: Open "PowerShell". Enter "get-service | where {$_.DisplayName -Like "*mcafee*"} | Select Status,DisplayName" Enter "get-service | where {$_.DisplayName -Like "*symantec*"} | Select Status,DisplayName" If there is no antivirus solution installed on the system, this is a finding.

Fix: F-56667r828875_fix

Install Microsoft Defender Antivirus or a third-party antivirus solution.

c
Local volumes must be formatted using NTFS.
AC-3 - High - CCI-000213 - V-253265 - SV-253265r828879_rule
RMF Control
AC-3
Severity
High
CCI
CCI-000213
Version
WN11-00-000050
Vuln IDs
  • V-253265
Rule IDs
  • SV-253265r828879_rule
The ability to set access permissions and auditing is critical to maintaining the security and proper access controls of a system. To support this, volumes must be formatted using the NTFS file system.
Checks: C-56718r828877_chk

Run "Computer Management". Navigate to Storage >> Disk Management. If the "File System" column does not indicate "NTFS" for each volume assigned a drive letter, this is a finding. This does not apply to system partitions such the Recovery and EFI System Partition.

Fix: F-56668r828878_fix

Format all local volumes to use NTFS.

b
Alternate operating systems must not be permitted on the same system.
CM-6 - Medium - CCI-000366 - V-253266 - SV-253266r828882_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000055
Vuln IDs
  • V-253266
Rule IDs
  • SV-253266r828882_rule
Allowing other operating systems to run on a secure system may allow security to be circumvented.
Checks: C-56719r828880_chk

Verify the system does not include other operating system installations. Run "Advanced System Settings". Select the "Advanced" tab. Click the "Settings" button in the "Startup and Recovery" section. If the drop-down list box "Default operating system:" shows any operating system other than Windows 11, this is a finding.

Fix: F-56669r828881_fix

Ensure Windows 11 is the only operating system on a device. Remove alternate operating systems.

b
Non-system-created file shares on a system must limit access to groups that require it.
SC-4 - Medium - CCI-001090 - V-253267 - SV-253267r828885_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN11-00-000060
Vuln IDs
  • V-253267
Rule IDs
  • SV-253267r828885_rule
Shares which provide network access, must not exist on a workstation except for system-created administrative shares, and could potentially expose sensitive information. If a share is necessary, share permissions, as well as NTFS permissions, must be reconfigured to give the minimum access to those accounts that require it.
Checks: C-56720r828883_chk

Non-system-created shares must not exist on workstations. If only system-created shares exist on the system, this is NA. Run "Computer Management". Navigate to System Tools >> Shared Folders >> Shares. If the only shares listed are "ADMIN$", "C$" and "IPC$", this is NA. (Selecting Properties for system-created shares will display a message that it has been shared for administrative purposes.) Right-click any non-system-created shares. Select "Properties". Select the "Share Permissions" tab. Verify the necessity of any shares found. If the file shares have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding. Select the "Security" tab. If the NTFS permissions have not been reconfigured to restrict permissions to the specific groups or accounts that require access, this is a finding.

Fix: F-56670r828884_fix

If a non-system-created share is required on a system, configure the share and NTFS permissions to limit access to the specific groups or accounts that require it. Remove any unnecessary non-system-created shares.

a
Unused accounts must be disabled or removed from the system after 35 days of inactivity.
AU-12 - Low - CCI-000172 - V-253268 - SV-253268r828888_rule
RMF Control
AU-12
Severity
Low
CCI
CCI-000172
Version
WN11-00-000065
Vuln IDs
  • V-253268
Rule IDs
  • SV-253268r828888_rule
Outdated or unused accounts provide penetration points that may go undetected. Inactive accounts must be deleted if no longer necessary or, if still required, disable until needed. Satisfies: SRG-OS-000468-GPOS-00212, SRG-OS-000118-GPOS-00060
Checks: C-56721r828886_chk

Run "PowerShell". Copy the lines below to the PowerShell window and enter. "([ADSI]('WinNT://{0}' -f $env:COMPUTERNAME)).Children | Where { $_.SchemaClassName -eq 'user' } | ForEach { $user = ([ADSI]$_.Path) $lastLogin = $user.Properties.LastLogin.Value $enabled = ($user.Properties.UserFlags.Value -band 0x2) -ne 0x2 if ($lastLogin -eq $null) { $lastLogin = 'Never' } Write-Host $user.Name $lastLogin $enabled }" This will return a list of local accounts with the account name, last logon, and if the account is enabled (True/False). For example: User1 10/31/2015 5:49:56 AM True Review the list to determine the finding validity for each account reported. Exclude the following accounts: Built-in administrator account (Disabled, SID ending in 500) Built-in guest account (Disabled, SID ending in 501) Built-in DefaultAccount (Disabled, SID ending in 503) Local administrator account If any enabled accounts have not been logged on to within the past 35 days, this is a finding. Inactive accounts that have been reviewed and deemed to be required must be documented with the ISSO.

Fix: F-56671r828887_fix

Review local accounts and verify their necessity. Disable or delete any active accounts that have not been used in the last 35 days.

c
Only accounts responsible for the administration of a system must have Administrator rights on the system.
AC-3 - High - CCI-002165 - V-253269 - SV-253269r828891_rule
RMF Control
AC-3
Severity
High
CCI
CCI-002165
Version
WN11-00-000070
Vuln IDs
  • V-253269
Rule IDs
  • SV-253269r828891_rule
An account that does not have Administrator duties must not have Administrator rights. Such rights would allow the account to bypass or modify required security restrictions on that machine and make it vulnerable to attack. System administrators must log on to systems only using accounts with the minimum level of authority necessary. For domain-joined workstations, the Domain Admins group must be replaced by a domain workstation administrator group (see V-36434 in the Active Directory Domain STIG). Restricting highly privileged accounts from the local Administrators group helps mitigate the risk of privilege escalation resulting from credential theft attacks. Standard user accounts must not be members of the local administrators group.
Checks: C-56722r828889_chk

Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Groups. Review the members of the Administrators group. Only the appropriate administrator groups or accounts responsible for administration of the system may be members of the group. For domain-joined workstations, the Domain Admins group must be replaced by a domain workstation administrator group. Standard user accounts must not be members of the local administrator group. If prohibited accounts are members of the local administrators group, this is a finding. The built-in Administrator account or other required administrative accounts would not be a finding.

Fix: F-56672r828890_fix

Configure the system to include only administrator groups or accounts that are responsible for the system in the local Administrators group. For domain-joined workstations, the Domain Admins group must be replaced by a domain workstation administrator group. Remove any standard user accounts.

b
Only accounts responsible for the backup operations must be members of the Backup Operators group.
CM-6 - Medium - CCI-000366 - V-253270 - SV-253270r828894_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000075
Vuln IDs
  • V-253270
Rule IDs
  • SV-253270r828894_rule
Backup Operators are able to read and write to any file in the system, regardless of the rights assigned to it. Backup and restore rights permit users to circumvent the file access restrictions present on NTFS disk drives for backup and restore purposes. Members of the Backup Operators group must have separate logon accounts for performing backup duties.
Checks: C-56723r828892_chk

Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Groups. Review the members of the Backup Operators group. If the group contains no accounts, this is not a finding. If the group contains any accounts, the accounts must be specifically for backup functions. If the group contains any standard user accounts used for performing normal user tasks, this is a finding.

Fix: F-56673r828893_fix

Create separate accounts for backup operations for users with this privilege.

b
Only authorized user accounts must be allowed to create or run virtual machines on Windows 11 systems.
AC-3 - Medium - CCI-002165 - V-253271 - SV-253271r828897_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-002165
Version
WN11-00-000080
Vuln IDs
  • V-253271
Rule IDs
  • SV-253271r828897_rule
Allowing other operating systems to run on a secure system may allow users to circumvent security. For Hyper-V, preventing unauthorized users from being assigned to the Hyper-V Administrators group will prevent them from accessing or creating virtual machines on the system. The Hyper-V Hypervisor is used by virtualization-based Security features such as Credential Guard on Windows 11; however, it is not the full Hyper-V installation.
Checks: C-56724r828895_chk

If a hosted hypervisor (Hyper-V, VMware Workstation, etc.) is installed on the system, verify only authorized user accounts are allowed to run virtual machines. For Hyper-V, run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Groups. Double click on "Hyper-V Administrators". If any unauthorized groups or user accounts are listed in "Members:", this is a finding. For hosted hypervisors other than Hyper-V, verify only authorized user accounts have access to run the virtual machines. Restrictions may be enforced by access to the physical system, software restriction policies, or access restrictions built into the application. If any unauthorized groups or user accounts have access to create or run virtual machines, this is a finding. All users authorized to create or run virtual machines must be documented with the ISSM/ISSO. Accounts nested within group accounts must be documented as individual accounts and not the group accounts.

Fix: F-56674r828896_fix

For Hyper-V, remove any unauthorized groups or user accounts from the "Hyper-V Administrators" group. For hosted hypervisors other than Hyper-V, restrict access to create or run virtual machines to authorized user accounts only.

a
Standard local user accounts must not exist on a system in a domain.
CM-6 - Low - CCI-000366 - V-253272 - SV-253272r890449_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-00-000085
Vuln IDs
  • V-253272
Rule IDs
  • SV-253272r890449_rule
To minimize potential points of attack, local user accounts, other than built-in accounts and local administrator accounts, must not exist on a workstation in a domain. Users must log on to workstations in a domain with their domain accounts.
Checks: C-56725r890448_chk

Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Users. If local users other than the accounts listed below exist on a workstation in a domain, this is a finding. For standalone or nondomain-joined systems, this is Not Applicable. Built-in Administrator account (Disabled) Built-in Guest account (Disabled) Built-in DefaultAccount (Disabled) Built-in defaultuser0 (Disabled) Built-in WDAGUtilityAccount (Disabled) Local administrator account(s) All of the built-in accounts may not exist on a system, depending on the Windows 11 version.

Fix: F-56675r828899_fix

Limit local user accounts on domain-joined systems. Remove any unauthorized local accounts.

b
Accounts must be configured to require password expiration.
IA-5 - Medium - CCI-000199 - V-253273 - SV-253273r828903_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
WN11-00-000090
Vuln IDs
  • V-253273
Rule IDs
  • SV-253273r828903_rule
Passwords that do not expire increase exposure with a greater probability of being discovered or cracked.
Checks: C-56726r828901_chk

Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Users. Double-click each active account. If "Password never expires" is selected for any account, this is a finding.

Fix: F-56676r828902_fix

Configure all passwords to expire. Run "Computer Management". Navigate to System Tools >> Local Users and Groups >> Users. Double-click each active account. Ensure "Password never expires" is not checked on all active accounts.

b
Permissions for system files and directories must conform to minimum requirements.
AC-3 - Medium - CCI-002165 - V-253274 - SV-253274r840169_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-002165
Version
WN11-00-000095
Vuln IDs
  • V-253274
Rule IDs
  • SV-253274r840169_rule
Changing the system's file and directory permissions allows the possibility of unauthorized and anonymous modification to the operating system and installed applications.
Checks: C-56727r840169_chk

The default file system permissions are adequate when the Security Option "Network access: Let Everyone permissions apply to anonymous users" is set to "Disabled" (WN11-SO-000160). If the default file system permissions are maintained and the referenced option is set to "Disabled", this is not a finding. Verify the default permissions for the sample directories below. Non-privileged groups such as Users or Authenticated Users must not have greater than read & execute permissions except where noted as defaults. (Individual accounts must not be used to assign permissions.) Viewing in File Explorer: Select the "Security" tab, and the "Advanced" button. C:\ Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to Administrators - Full control - This folder, subfolders, and files SYSTEM - Full control - This folder, subfolders, and files Users - Read & execute - This folder, subfolders, and files Authenticated Users - Modify - Subfolders and files only Authenticated Users - Create folders / append data - This folder only \Program Files Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to TrustedInstaller - Full control - This folder and subfolders SYSTEM - Modify - This folder only SYSTEM - Full control - Subfolders and files only Administrators - Modify - This folder only Administrators - Full control - Subfolders and files only Users - Read & execute - This folder, subfolders, and files CREATOR OWNER - Full control - Subfolders and files only ALL APPLICATION PACKAGES - Read & execute - This folder, subfolders, and files ALL RESTRICTED APPLICATION PACKAGES - Read & execute - This folder, subfolders, and files \Windows Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to TrustedInstaller - Full control - This folder and subfolders SYSTEM - Modify - This folder only SYSTEM - Full control - Subfolders and files only Administrators - Modify - This folder only Administrators - Full control - Subfolders and files only Users - Read & execute - This folder, subfolders, and files CREATOR OWNER - Full control - Subfolders and files only ALL APPLICATION PACKAGES - Read & execute - This folder, subfolders, and files ALL RESTRICTED APPLICATION PACKAGES - Read & execute - This folder, subfolders, and files Alternately use icacls. Run "CMD" as administrator. Enter "icacls" followed by the directory. icacls c:\ icacls "c:\program files" icacls c:\windows The following results will be displayed as each is entered: c:\ BUILTIN\Administrators:(OI)(CI)(F) NT AUTHORITY\SYSTEM:(OI)(CI)(F) BUILTIN\Users:(OI)(CI)(RX) NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(M) NT AUTHORITY\Authenticated Users:(AD) Mandatory Label\High Mandatory Level:(OI)(NP)(IO)(NW) Successfully processed 1 files; Failed processing 0 files c:\program files NT SERVICE\TrustedInstaller:(F) NT SERVICE\TrustedInstaller:(CI)(IO)(F) NT AUTHORITY\SYSTEM:(M) NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(F) BUILTIN\Administrators:(M) BUILTIN\Administrators:(OI)(CI)(IO)(F) BUILTIN\Users:(RX) BUILTIN\Users:(OI)(CI)(IO)(GR,GE) CREATOR OWNER:(OI)(CI)(IO)(F) APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(RX) APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(OI)(CI)(IO)(GR,GE) APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES:(RX) APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES:(OI)(CI)(IO)(GR,GE) Successfully processed 1 files; Failed processing 0 files c:\windows NT SERVICE\TrustedInstaller:(F) NT SERVICE\TrustedInstaller:(CI)(IO)(F) NT AUTHORITY\SYSTEM:(M) NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(F) BUILTIN\Administrators:(M) BUILTIN\Administrators:(OI)(CI)(IO)(F) BUILTIN\Users:(RX) BUILTIN\Users:(OI)(CI)(IO)(GR,GE) CREATOR OWNER:(OI)(CI)(IO)(F) APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(RX) APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(OI)(CI)(IO)(GR,GE) APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES:(RX) APPLICATION PACKAGE AUTHORITY\ALL RESTRICTED APPLICATION PACKAGES:(OI)(CI)(IO)(GR,GE) Successfully processed 1 files; Failed processing 0 files

Fix: F-56677r828905_fix

Maintain the default file system permissions and configure the Security Option: "Network access: Let everyone permissions apply to anonymous users" to "Disabled" (WN11-SO-000160).

c
Internet Information System (IIS) or its subcomponents must not be installed on a workstation.
CM-7 - High - CCI-000381 - V-253275 - SV-253275r828909_rule
RMF Control
CM-7
Severity
High
CCI
CCI-000381
Version
WN11-00-000100
Vuln IDs
  • V-253275
Rule IDs
  • SV-253275r828909_rule
IIS is not installed by default. Installation of Internet Information System (IIS) may allow unauthorized internet services to be hosted. Websites must only be hosted on servers that have been designed for that purpose and can be adequately secured.
Checks: C-56728r828907_chk

Verify it has not been installed on the system. Run "Programs and Features". Select "Turn Windows features on or off". If the entries for "Internet Information Services" or "Internet Information Services Hostable Web Core" are selected, this is a finding. If an application requires IIS or a subset to be installed to function, this needs be documented with the ISSO. In addition, any applicable requirements from the IIS STIG must be addressed.

Fix: F-56678r828908_fix

Uninstall "Internet Information Services" or "Internet Information Services Hostable Web Core" from the system.

b
Simple Network Management Protocol (SNMP) must not be installed on the system.
CM-7 - Medium - CCI-000382 - V-253276 - SV-253276r828912_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000382
Version
WN11-00-000105
Vuln IDs
  • V-253276
Rule IDs
  • SV-253276r828912_rule
"SNMP" is not installed by default. Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-56729r828910_chk

Verify SNMP has not been installed. Navigate to the Windows\System32 directory. If the "SNMP" application exists, this is a finding.

Fix: F-56679r828911_fix

Uninstall "Simple Network Management Protocol (SNMP)" from the system. Run "Programs and Features". Select "Turn Windows Features on or off". De-select "Simple Network Management Protocol (SNMP)".

b
Simple TCP/IP Services must not be installed on the system.
CM-7 - Medium - CCI-000381 - V-253277 - SV-253277r828915_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000110
Vuln IDs
  • V-253277
Rule IDs
  • SV-253277r828915_rule
"Simple TCP/IP Services" is not installed by default. Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-56730r828913_chk

Verify Simple TCP/IP Services has not been installed. Run "Services.msc". If "Simple TCP/IP Services" is listed, this is a finding.

Fix: F-56680r828914_fix

Uninstall "Simple TCPIP Services (i.e. echo, daytime etc.)" from the system. Run "Programs and Features". Select "Turn Windows Features on or off". De-select "Simple TCPIP Services (i.e. echo, daytime etc.)".

b
The Telnet Client must not be installed on the system.
CM-7 - Medium - CCI-000382 - V-253278 - SV-253278r828918_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000382
Version
WN11-00-000115
Vuln IDs
  • V-253278
Rule IDs
  • SV-253278r828918_rule
The "Telnet Client" is not installed by default. Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-56731r828916_chk

Verify Telnet Client has not been installed. Navigate to the Windows\System32 directory. If the "telnet" application exists, this is a finding.

Fix: F-56681r828917_fix

Uninstall "Telnet Client" from the system. Run "Programs and Features". Select "Turn Windows Features on or off". De-select "Telnet Client".

b
The TFTP Client must not be installed on the system.
CM-7 - Medium - CCI-000382 - V-253279 - SV-253279r828921_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000382
Version
WN11-00-000120
Vuln IDs
  • V-253279
Rule IDs
  • SV-253279r828921_rule
The "TFTP Client" is not installed by default. Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-56732r828919_chk

Verify TFTP Client has not been installed. Navigate to the Windows\System32 directory. If the "TFTP" application exists, this is a finding.

Fix: F-56682r828920_fix

Uninstall "TFTP Client" from the system. Run "Programs and Features". Select "Turn Windows Features on or off". De-select "TFTP Client".

b
Software certificate installation files must be removed from Windows 11.
CM-6 - Medium - CCI-000366 - V-253280 - SV-253280r828924_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000130
Vuln IDs
  • V-253280
Rule IDs
  • SV-253280r828924_rule
Use of software certificates and their accompanying installation files for end users to access resources is less secure than the use of hardware-based certificates.
Checks: C-56733r828922_chk

Search all drives for *.p12 and *.pfx files. If any files with these extensions exist, this is a finding. This does not apply to server-based applications that have a requirement for .p12 certificate files (e.g., Oracle Wallet Manager) or Adobe PreFlight certificate files. Some applications create files with extensions of .p12 that are not certificate installation files. Removal of non-certificate installation files from systems is not required. These must be documented with the ISSO.

Fix: F-56683r828923_fix

Remove any certificate installation files (*.p12 and *.pfx) found on a system. Note: This does not apply to server-based applications that have a requirement for .p12 certificate files (e.g., Oracle Wallet Manager) or Adobe PreFlight certificate files.

b
A host-based firewall must be installed and enabled on the system.
CM-6 - Medium - CCI-000366 - V-253281 - SV-253281r828927_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000135
Vuln IDs
  • V-253281
Rule IDs
  • SV-253281r828927_rule
A firewall provides a line of defense against attack, allowing or blocking inbound and outbound connections based on a set of rules.
Checks: C-56734r828925_chk

Determine if a host-based firewall is installed and enabled on the system. If a host-based firewall is not installed and enabled on the system, this is a finding. The configuration requirements will be determined by the applicable firewall STIG.

Fix: F-56684r828926_fix

Install and enable a host-based firewall on the system.

b
Inbound exceptions to the firewall on Windows 11 domain workstations must only allow authorized remote management hosts.
CM-6 - Medium - CCI-000366 - V-253282 - SV-253282r828930_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000140
Vuln IDs
  • V-253282
Rule IDs
  • SV-253282r828930_rule
Allowing inbound access to domain workstations from other systems may allow lateral movement across systems if credentials are compromised. Limiting inbound connections only from authorized remote management systems will help limit this exposure.
Checks: C-56735r828928_chk

Verify firewall exceptions to inbound connections on domain workstations include only authorized remote management hosts. If allowed inbound exceptions are not limited to authorized remote management hosts, this is a finding. Review inbound firewall exceptions. Computer Configuration >> Windows Settings >> Security Settings >> Windows Defender Firewall with Advanced Security >> Windows Defender Firewall with Advanced Security >> Inbound Rules (this link will be in the right pane) For any inbound rules that allow connections view the Scope for Remote IP address. This may be defined as an IP address, subnet, or range. The rule must apply to all firewall profiles. If a third-party firewall is used, ensure comparable settings are in place.

Fix: F-56685r828929_fix

Configure firewall exceptions to inbound connections on domain workstations to include only authorized remote management hosts. Configure only inbound connection exceptions for authorized remote management hosts. Computer Configuration >> Windows Settings >> Security Settings >> Windows Defender Firewall with Advanced Security >> Windows Defender Firewall with Advanced Security >> Inbound Rules (this link will be in the right pane) For any inbound rules that allow connections, configure the Scope for Remote IP address to those of authorized remote management hosts. This may be defined as an IP address, subnet or range. Apply the rule to all firewall profiles. If a third-party firewall is used, configure inbound exceptions to only include authorized remote management hosts.

c
Data Execution Prevention (DEP) must be configured to at least OptOut.
SI-16 - High - CCI-002824 - V-253283 - SV-253283r828933_rule
RMF Control
SI-16
Severity
High
CCI
CCI-002824
Version
WN11-00-000145
Vuln IDs
  • V-253283
Rule IDs
  • SV-253283r828933_rule
Attackers are constantly looking for vulnerabilities in systems and applications. Data Execution Prevention (DEP) prevents harmful code from running in protected memory locations reserved for Windows and other programs.
Checks: C-56736r828931_chk

Verify the DEP configuration. Open a command prompt (cmd.exe) or PowerShell with elevated privileges (Run as administrator). Enter "BCDEdit /enum {current}". (If using PowerShell "{current}" must be enclosed in quotes.) If the value for "nx" is not "OptOut", this is a finding. (The more restrictive configuration of "AlwaysOn" would not be a finding.)

Fix: F-56686r828932_fix

Configure DEP to at least OptOut. Note: Suspend BitLocker before making changes to the DEP configuration. Open a command prompt (cmd.exe) or PowerShell with elevated privileges (Run as administrator). Enter "BCDEDIT /set {current} nx OptOut". (If using PowerShell "{current}" must be enclosed in quotes.) "AlwaysOn", a more restrictive selection, is also valid but does not allow applications that do not function properly to be opted out of DEP. Opted out exceptions can be configured in the "System Properties". Open "System" in Control Panel. Select "Advanced system settings". Click "Settings" in the "Performance" section. Select the "Data Execution Prevention" tab. Applications that are opted out are configured in the window below the selection "Turn on DEP for all programs and services except those I select:".

c
Structured Exception Handling Overwrite Protection (SEHOP) must be enabled.
SI-16 - High - CCI-002824 - V-253284 - SV-253284r828936_rule
RMF Control
SI-16
Severity
High
CCI
CCI-002824
Version
WN11-00-000150
Vuln IDs
  • V-253284
Rule IDs
  • SV-253284r828936_rule
Attackers are constantly looking for vulnerabilities in systems and applications. Structured Exception Handling Overwrite Protection (SEHOP) blocks exploits that use the Structured Exception Handling overwrite technique, a common buffer overflow attack.
Checks: C-56737r828934_chk

Verify SEHOP is turned on. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Session Manager\kernel\ Value Name: DisableExceptionChainValidation Value Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56687r828935_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Enable Structured Exception Handling Overwrite Protection (SEHOP)" to "Enabled". This 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.

b
The Windows PowerShell 2.0 feature must be disabled on the system.
CM-7 - Medium - CCI-000381 - V-253285 - SV-253285r828939_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000155
Vuln IDs
  • V-253285
Rule IDs
  • SV-253285r828939_rule
Windows PowerShell 5.0 added advanced logging features which 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 5.0 script block logging feature.
Checks: C-56738r828937_chk

Run "Windows PowerShell" with elevated privileges (run as administrator). Enter the following: Get-WindowsOptionalFeature -Online | Where FeatureName -like *PowerShellv2* If either of the following have a "State" of "Enabled", this is a finding. FeatureName : MicrosoftWindowsPowerShellV2 State : Enabled FeatureName : MicrosoftWindowsPowerShellV2Root State : Enabled Alternately: Search for "Features". Select "Turn Windows features on or off". If "Windows PowerShell 2.0" (whether the subcategory of "Windows PowerShell 2.0 Engine" is selected or not) is selected, this is a finding.

Fix: F-56688r828938_fix

Disable "Windows PowerShell 2.0" on the system. Run "Windows PowerShell" with elevated privileges (run as administrator). Enter the following: Disable-WindowsOptionalFeature -Online -FeatureName MicrosoftWindowsPowerShellV2Root This command must disable both "MicrosoftWindowsPowerShellV2Root" and "MicrosoftWindowsPowerShellV2" which correspond to "Windows PowerShell 2.0" and "Windows PowerShell 2.0 Engine" respectively in "Turn Windows features on or off". Alternately: Search for "Features". Select "Turn Windows features on or off". De-select "Windows PowerShell 2.0".

b
The Server Message Block (SMB) v1 protocol must be disabled on the system.
CM-7 - Medium - CCI-000381 - V-253286 - SV-253286r828942_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000160
Vuln IDs
  • V-253286
Rule IDs
  • SV-253286r828942_rule
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. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older Network Attached Storage (NAS) devices may only support SMBv1.
Checks: C-56739r828940_chk

Different methods are available to disable SMBv1 on Windows 11. This is the preferred method, however if WN11-00-000165 and WN11-00-000170 are configured, this is NA. Run "Windows PowerShell" with elevated privileges (run as administrator). Enter the following: Get-WindowsOptionalFeature -Online | Where FeatureName -eq SMB1Protocol If "State : Enabled" is returned, this is a finding. Alternately: Search for "Features". Select "Turn Windows features on or off". If "SMB 1.0/CIFS File Sharing Support" is selected, this is a finding.

Fix: F-56689r828941_fix

Disable the SMBv1 protocol. Run "Windows PowerShell" with elevated privileges (run as administrator). Enter the following: Disable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol Alternately: Search for "Features". Select "Turn Windows features on or off". De-select "SMB 1.0/CIFS File Sharing Support".

b
The Server Message Block (SMB) v1 protocol must be disabled on the SMB server.
CM-7 - Medium - CCI-000381 - V-253287 - SV-253287r828945_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000165
Vuln IDs
  • V-253287
Rule IDs
  • SV-253287r828945_rule
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. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.
Checks: C-56740r828943_chk

Different methods are available to disable SMBv1 on Windows 11, if WN11-00-000160 is configured, this is NA. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\ Value Name: SMB1 Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56690r828944_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Configure SMBv1 Server" to "Disabled". This 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. The system must be restarted for the change to take effect.

b
The Server Message Block (SMB) v1 protocol must be disabled on the SMB client.
CM-7 - Medium - CCI-000381 - V-253288 - SV-253288r828948_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000170
Vuln IDs
  • V-253288
Rule IDs
  • SV-253288r828948_rule
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. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.
Checks: C-56741r828946_chk

Different methods are available to disable SMBv1 on Windows 11, if WN11-00-000160is configured, this is NA. If the following registry value is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\mrxsmb10\ Value Name: Start Type: REG_DWORD Value: 0x00000004 (4)

Fix: F-56691r828947_fix

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". This 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. The system must be restarted for the changes to take effect.

b
The Secondary Logon service must be disabled on Windows 11.
CM-7 - Medium - CCI-000381 - V-253289 - SV-253289r828951_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000175
Vuln IDs
  • V-253289
Rule IDs
  • SV-253289r828951_rule
The Secondary Logon service provides a means for entering alternate credentials, typically used to run commands with elevated privileges. Using privileged credentials in a standard user session can expose those credentials to theft.
Checks: C-56742r828949_chk

Run "Services.msc". Locate the "Secondary Logon" service. If the "Startup Type" is not "Disabled" or the "Status" is "Running", this is a finding.

Fix: F-56692r828950_fix

Configure the "Secondary Logon" service "Startup Type" to "Disabled".

b
Orphaned security identifiers (SIDs) must be removed from user rights on Windows 11.
CM-6 - Medium - CCI-000366 - V-253290 - SV-253290r828954_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000190
Vuln IDs
  • V-253290
Rule IDs
  • SV-253290r828954_rule
Accounts or groups given rights on a system may show up as unresolved SIDs for various reasons including deletion of the accounts or groups. If the account or group objects are reanimated, there is a potential they may still have rights no longer intended. Valid domain accounts or groups may also show up as unresolved SIDs if a connection to the domain cannot be established for some reason.
Checks: C-56743r828952_chk

Review the effective User Rights setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment. Review each User Right listed for any unresolved SIDs to determine whether they are valid, such as due to being temporarily disconnected from the domain. (Unresolved SIDs have the format of "*S-1-..".) If any unresolved SIDs exist and are not for currently valid accounts or groups, this is a finding.

Fix: F-56693r828953_fix

Remove any unresolved SIDs found in User Rights assignments and determined to not be for currently valid accounts or groups by removing the accounts or groups from the appropriate group policy.

b
Bluetooth must be turned off unless approved by the organization.
CM-7 - Medium - CCI-000381 - V-253291 - SV-253291r828957_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000210
Vuln IDs
  • V-253291
Rule IDs
  • SV-253291r828957_rule
If not configured properly, Bluetooth may allow rogue devices to communicate with a system. If a rogue device is paired with a system, there is potential for sensitive information to be compromised.
Checks: C-56744r828955_chk

This is NA if the system does not have Bluetooth. Verify the Bluetooth radio is turned off unless approved by the organization. If it is not, this is a finding. Approval must be documented with the ISSO.

Fix: F-56694r828956_fix

Turn off Bluetooth radios not organizationally approved. Establish an organizational policy for the use of Bluetooth.

b
Bluetooth must be turned off when not in use.
CM-7 - Medium - CCI-000381 - V-253292 - SV-253292r828960_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-00-000220
Vuln IDs
  • V-253292
Rule IDs
  • SV-253292r828960_rule
If not configured properly, Bluetooth may allow rogue devices to communicate with a system. If a rogue device is paired with a system, there is potential for sensitive information to be compromised.
Checks: C-56745r828958_chk

This is NA if the system does not have Bluetooth. Verify the organization has a policy to turn off Bluetooth when not in use and personnel are trained. If it does not, this is a finding.

Fix: F-56695r828959_fix

Turn off Bluetooth radios when not in use. Establish an organizational policy for the use of Bluetooth to include training of personnel.

b
The system must notify the user when a Bluetooth device attempts to connect.
CM-6 - Medium - CCI-000366 - V-253293 - SV-253293r840170_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-00-000230
Vuln IDs
  • V-253293
Rule IDs
  • SV-253293r840170_rule
If not configured properly, Bluetooth may allow rogue devices to communicate with a system. If a rogue device is paired with a system, there is potential for sensitive information to be compromised.
Checks: C-56746r828961_chk

This is NA if the system does not have Bluetooth, or if Bluetooth is turned off per the organizations policy. Search for "Bluetooth". View Bluetooth Settings. Select "More Bluetooth Options" If "Alert me when a new Bluetooth device wants to connect" is not checked, this is a finding.

Fix: F-56696r828962_fix

Configure Bluetooth to notify users if devices attempt to connect. View Bluetooth Settings. Ensure "Alert me when a new Bluetooth device wants to connect" is checked.

c
Administrative accounts must not be used with applications that access the internet, such as web browsers, or with potential internet sources, such as email.
CM-6 - High - CCI-000366 - V-253294 - SV-253294r828966_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN11-00-000240
Vuln IDs
  • V-253294
Rule IDs
  • SV-253294r828966_rule
Using applications that access the internet or have potential internet sources using administrative privileges exposes a system to compromise. If a flaw in an application is exploited while running as a privileged user, the entire system could be compromised. Web browsers and email are common attack vectors for introducing malicious code and must not be run with an administrative account. Since administrative accounts may generally change or work around technical restrictions for running a web browser or other applications, it is essential that policy requires administrative accounts to not access the internet or use applications, such as email. The policy must define specific exceptions for local service administration. These exceptions may include HTTP(S)-based tools that are used for the administration of the local system, services, or attached devices. Technical means such as application allowlisting can be used to enforce the policy to ensure compliance.
Checks: C-56747r828964_chk

Determine whether administrative accounts are prevented from using applications that access the internet, such as web browsers, or with potential internet sources, such as email, except as necessary for local service administration. The organization must have a policy that prohibits administrative accounts from using applications that access the internet, such as web browsers, or with potential internet sources, such as email, except as necessary for local service administration. The policy must define specific exceptions for local service administration. These exceptions may include HTTP(S)-based tools that are used for the administration of the local system, services, or attached devices. Technical measures such as the removal of applications or application allowlisting must be used where feasible to prevent the use of applications that access the internet. If accounts with administrative privileges are not prevented from using applications that access the internet or with potential internet sources, this is a finding.

Fix: F-56697r828965_fix

Establish and enforce a policy that prohibits administrative accounts from using applications that access the internet, such as web browsers, or with potential internet sources, such as email. Define specific exceptions for local service administration. These exceptions may include HTTP(S)-based tools that are used for the administration of the local system, services, or attached devices. Implement technical measures where feasible such as removal of applications or use of application allowlisting to restrict the use of applications that can access the internet.

b
Windows 11 nonpersistent VM sessions must not exceed 24 hours.
SC-28 - Medium - CCI-001199 - V-253295 - SV-253295r890452_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-001199
Version
WN11-00-000250
Vuln IDs
  • V-253295
Rule IDs
  • SV-253295r890452_rule
For virtual desktop implementations (VDIs) where the virtual desktop instance is deleted or refreshed upon logoff, the organization must enforce that sessions be terminated within 24 hours. This would ensure any data stored on the VM that is not encrypted or covered by Credential Guard is deleted.
Checks: C-56748r890450_chk

Verify there is a documented policy or procedure in place that nonpersistent VM sessions do not exceed 24 hours. If the system is NOT a nonpersistent VM, this is Not Applicable. For Azure Virtual Desktop (AVD) implementations with no data at rest, this is Not Applicable. If there is no such documented policy or procedure in place, this is a finding.

Fix: F-56698r890451_fix

Set nonpersistent VM sessions to not exceed 24 hours.

a
The Windows 11 time service must synchronize with an appropriate DOD time source.
AU-8 - Low - CCI-001891 - V-253296 - SV-253296r922043_rule
RMF Control
AU-8
Severity
Low
CCI
CCI-001891
Version
WN11-00-000260
Vuln IDs
  • V-253296
Rule IDs
  • SV-253296r922043_rule
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, authorized time source.
Checks: C-56749r828970_chk

Review the Windows time service configuration. Open an elevated "Command Prompt" (run as administrator). Enter "W32tm /query /configuration". Domain-joined systems (excluding the domain controller with the PDC emulator role): If the value for "Type" under "NTP Client" is not "NT5DS", this is a finding.

Fix: F-56699r922035_fix

Configure the system to synchronize time with an appropriate DOD time source. Domain-joined systems use NT5DS to synchronize time from other systems in the domain by default. If 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 "NtpServer" field to point to an appropriate DOD time server. The US Naval Observatory operates stratum 1 time servers, identified at https://www.cnmoc.usff.navy.mil/Our-Commands/United-States-Naval-Observatory/Precise-Time-Department/Network-Time-Protocol-NTP/. Time synchronization will occur through a hierarchy of time servers down to the local level. Clients and lower-level servers will synchronize with an authorized time server in the hierarchy.

b
Windows 11 account lockout duration must be configured to 15 minutes or greater.
AC-7 - Medium - CCI-002238 - V-253297 - SV-253297r828975_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-002238
Version
WN11-AC-000005
Vuln IDs
  • V-253297
Rule IDs
  • SV-253297r828975_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the amount of time that an account will remain locked after the specified number of failed logon attempts.
Checks: C-56750r828973_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. If the "Account lockout duration" is less than "15" minutes (excluding "0"), this is a finding. Configuring this to "0", requiring an administrator to unlock the account, is more restrictive and is not a finding.

Fix: F-56700r828974_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Account lockout duration" to "15" minutes or greater. A value of "0" is also acceptable, requiring an administrator to unlock the account.

b
The number of allowed bad logon attempts must be configured to three or less.
AC-7 - Medium - CCI-000044 - V-253298 - SV-253298r828978_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN11-AC-000010
Vuln IDs
  • V-253298
Rule IDs
  • SV-253298r828978_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. The higher this value is, the less effective the account lockout feature will be in protecting the local system. The number of bad logon attempts must be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.
Checks: C-56751r828976_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. If the "Account lockout threshold" is "0" or more than "3" attempts, this is a finding.

Fix: F-56701r828977_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Account lockout threshold" to "3" or less invalid logon attempts (excluding "0" which is unacceptable).

b
The period of time before the bad logon counter is reset must be configured to 15 minutes.
AC-7 - Medium - CCI-000044 - V-253299 - SV-253299r828981_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN11-AC-000015
Vuln IDs
  • V-253299
Rule IDs
  • SV-253299r828981_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that must pass after failed logon attempts before the counter is reset to 0. The smaller this value is, the less effective the account lockout feature will be in protecting the local system.
Checks: C-56752r828979_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy. If the "Reset account lockout counter after" value is less than "15" minutes, this is a finding.

Fix: F-56702r828980_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Reset account lockout counter after" to "15" minutes.

b
The password history must be configured to 24 passwords remembered.
IA-5 - Medium - CCI-000200 - V-253300 - SV-253300r828984_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000200
Version
WN11-AC-000020
Vuln IDs
  • V-253300
Rule IDs
  • SV-253300r828984_rule
A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change a password to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes. The default value is 24 for Windows domain systems. DoD has decided this is the appropriate value for all Windows systems.
Checks: C-56753r828982_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for "Enforce password history" is less than "24" passwords remembered, this is a finding.

Fix: F-56703r828983_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Enforce password history" to "24" passwords remembered.

b
The maximum password age must be configured to 60 days or less.
IA-5 - Medium - CCI-000199 - V-253301 - SV-253301r828987_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
WN11-AC-000025
Vuln IDs
  • V-253301
Rule IDs
  • SV-253301r828987_rule
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.
Checks: C-56754r828985_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for the "Maximum password age" is greater than "60" days, this is a finding. If the value is set to "0" (never expires), this is a finding.

Fix: F-56704r828986_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Maximum Password Age" to "60" days or less (excluding "0" which is unacceptable).

b
The minimum password age must be configured to at least 1 day.
IA-5 - Medium - CCI-000198 - V-253302 - SV-253302r828990_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000198
Version
WN11-AC-000030
Vuln IDs
  • V-253302
Rule IDs
  • SV-253302r828990_rule
Permitting passwords to be changed in immediate succession within the same day allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.
Checks: C-56755r828988_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for the "Minimum password age" is less than "1" day, this is a finding.

Fix: F-56705r828989_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Minimum Password Age" to at least "1" day.

b
Passwords must, at a minimum, be 14 characters.
IA-5 - Medium - CCI-000205 - V-253303 - SV-253303r857206_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000205
Version
WN11-AC-000035
Vuln IDs
  • V-253303
Rule IDs
  • SV-253303r857206_rule
Information systems not protected with strong password schemes (including passwords of minimum length) provide the opportunity for anyone to crack the password, thus gaining access to the system and compromising the device, information, or the local network.
Checks: C-56756r857204_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for the "Minimum password length," is less than "14" characters, this is a finding.

Fix: F-56706r857205_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Minimum password length" to "14" characters.

b
The built-in Microsoft password complexity filter must be enabled.
IA-5 - Medium - CCI-000192 - V-253304 - SV-253304r828996_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000192
Version
WN11-AC-000040
Vuln IDs
  • V-253304
Rule IDs
  • SV-253304r828996_rule
The use of complex passwords increases their strength against guessing and brute-force attacks. This setting configures the system to verify that newly created passwords conform to the Windows password complexity policy.
Checks: C-56757r828994_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for "Password must meet complexity requirements" is not set to "Enabled", this is a finding. If the site is using a password filter that requires this setting be set to "Disabled" for the filter to be used, this would not be considered a finding.

Fix: F-56707r828995_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Password must meet complexity requirements" to "Enabled".

c
Reversible password encryption must be disabled.
IA-5 - High - CCI-000196 - V-253305 - SV-253305r877397_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000196
Version
WN11-AC-000045
Vuln IDs
  • V-253305
Rule IDs
  • SV-253305r877397_rule
Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy must never be enabled.
Checks: C-56758r828997_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy. If the value for "Store password using reversible encryption" is not set to "Disabled", this is a finding.

Fix: F-56708r828998_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Store passwords using reversible encryption" to "Disabled".

b
The system must be configured to audit Account Logon - Credential Validation failures.
AU-12 - Medium - CCI-000172 - V-253306 - SV-253306r829002_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000005
Vuln IDs
  • V-253306
Rule IDs
  • SV-253306r829002_rule
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 signs of suspicious and unexpected behavior. Credential validation records events related to validation tests on credentials for a user account logon.
Checks: C-56759r829000_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Account Logon >> Credential Validation - Failure

Fix: F-56709r829001_fix

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.

b
The system must be configured to audit Account Logon - Credential Validation successes.
AU-12 - Medium - CCI-000172 - V-253307 - SV-253307r829005_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000010
Vuln IDs
  • V-253307
Rule IDs
  • SV-253307r829005_rule
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 signs of suspicious and unexpected behavior. Credential validation records events related to validation tests on credentials for a user account logon.
Checks: C-56760r829003_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Account Logon >> Credential Validation - Success

Fix: F-56710r829004_fix

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.

b
The system must be configured to audit Account Management - Security Group Management successes.
AU-12 - Medium - CCI-001914 - V-253308 - SV-253308r877036_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-001914
Version
WN11-AU-000030
Vuln IDs
  • V-253308
Rule IDs
  • SV-253308r877036_rule
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 signs of suspicious and unexpected behavior. Security Group Management records events such as creating, deleting or changing of security groups, including changes in group members.
Checks: C-56761r829006_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Account Management >> Security Group Management - Success

Fix: F-56711r829007_fix

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.

b
The system must be configured to audit Account Management - User Account Management failures.
SI-11 - Medium - CCI-001314 - V-253309 - SV-253309r829011_rule
RMF Control
SI-11
Severity
Medium
CCI
CCI-001314
Version
WN11-AU-000035
Vuln IDs
  • V-253309
Rule IDs
  • SV-253309r829011_rule
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 signs of suspicious and unexpected behavior. User Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling user accounts.
Checks: C-56762r829009_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Account Management >> User Account Management - Failure

Fix: F-56712r829010_fix

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.

b
The system must be configured to audit Account Management - User Account Management successes.
AC-2 - Medium - CCI-001403 - V-253310 - SV-253310r829014_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-001403
Version
WN11-AU-000040
Vuln IDs
  • V-253310
Rule IDs
  • SV-253310r829014_rule
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 signs of suspicious and unexpected behavior. User Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling user accounts.
Checks: C-56763r829012_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Account Management >> User Account Management - Success

Fix: F-56713r829013_fix

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.

b
The system must be configured to audit Detailed Tracking - PNP Activity successes.
AU-12 - Medium - CCI-000172 - V-253311 - SV-253311r829017_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000045
Vuln IDs
  • V-253311
Rule IDs
  • SV-253311r829017_rule
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 signs of suspicious and unexpected behavior. Plug and Play activity records events related to the successful connection of external devices.
Checks: C-56764r829015_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Detailed Tracking >> Plug and Play Events - Success

Fix: F-56714r829016_fix

Computer Configuration >> Windows Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Detailed Tracking >> "Audit PNP Activity" with "Success" selected.

b
The system must be configured to audit Detailed Tracking - Process Creation successes.
AU-12 - Medium - CCI-000172 - V-253312 - SV-253312r829020_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000050
Vuln IDs
  • V-253312
Rule IDs
  • SV-253312r829020_rule
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 signs of suspicious and unexpected behavior. Process creation records events related to the creation of a process and the source.
Checks: C-56765r829018_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Detailed Tracking >> Process Creation - Success

Fix: F-56715r829019_fix

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.

b
The system must be configured to audit Logon/Logoff - Account Lockout failures.
AU-12 - Medium - CCI-000172 - V-253313 - SV-253313r829023_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000054
Vuln IDs
  • V-253313
Rule IDs
  • SV-253313r829023_rule
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 signs of suspicious and unexpected behavior. Account Lockout events can be used to identify potentially malicious logon attempts.
Checks: C-56766r829021_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Account Lockout - Failure

Fix: F-56716r829022_fix

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.

b
The system must be configured to audit Logon/Logoff - Group Membership successes.
AU-12 - Medium - CCI-000172 - V-253314 - SV-253314r829026_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000060
Vuln IDs
  • V-253314
Rule IDs
  • SV-253314r829026_rule
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 signs of suspicious and unexpected behavior. Audit Group Membership records information related to the group membership of a user's logon token.
Checks: C-56767r829024_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Group Membership - Success

Fix: F-56717r829025_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> "Audit Group Membership" with "Success" selected.

b
The system must be configured to audit Logon/Logoff - Logoff successes.
AC-17 - Medium - CCI-000067 - V-253315 - SV-253315r829029_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000067
Version
WN11-AU-000065
Vuln IDs
  • V-253315
Rule IDs
  • SV-253315r829029_rule
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 signs of suspicious and unexpected behavior. Logoff records user logoffs. If this is an interactive logoff, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.
Checks: C-56768r829027_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Logoff - Success

Fix: F-56718r829028_fix

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.

b
The system must be configured to audit Logon/Logoff - Logon failures.
AU-12 - Medium - CCI-000172 - V-253316 - SV-253316r829032_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000070
Vuln IDs
  • V-253316
Rule IDs
  • SV-253316r829032_rule
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 signs of suspicious and unexpected behavior. Logon records user logons. If this is an interactive logon, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.
Checks: C-56769r829030_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Logon - Failure

Fix: F-56719r829031_fix

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.

b
The system must be configured to audit Logon/Logoff - Logon successes.
AU-12 - Medium - CCI-000172 - V-253317 - SV-253317r829035_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000075
Vuln IDs
  • V-253317
Rule IDs
  • SV-253317r829035_rule
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 signs of suspicious and unexpected behavior. Logon records user logons. If this is an interactive logon, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.
Checks: C-56770r829033_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Logon - Success

Fix: F-56720r829034_fix

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.

b
The system must be configured to audit Logon/Logoff - Special Logon successes.
AU-12 - Medium - CCI-000172 - V-253318 - SV-253318r829038_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000080
Vuln IDs
  • V-253318
Rule IDs
  • SV-253318r829038_rule
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 signs of suspicious and unexpected behavior. Special Logon records special logons which have administrative privileges and can be used to elevate processes.
Checks: C-56771r829036_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Special Logon - Success

Fix: F-56721r829037_fix

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.

b
Windows 11 must be configured to audit Object Access - File Share failures.
AU-12 - Medium - CCI-000172 - V-253319 - SV-253319r829041_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000081
Vuln IDs
  • V-253319
Rule IDs
  • SV-253319r829041_rule
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 signs of suspicious and unexpected behavior. Auditing file shares records events related to connection to shares on a system including system shares such as C$.
Checks: C-56772r829039_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open PowerShell or a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following: Object Access >> File Share - Failure If the system does not audit the above, this is a finding.

Fix: F-56722r829040_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> "Audit File Share" with "Failure" selected.

b
Windows 11 must be configured to audit Object Access - File Share successes.
AU-12 - Medium - CCI-000172 - V-253320 - SV-253320r829044_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000082
Vuln IDs
  • V-253320
Rule IDs
  • SV-253320r829044_rule
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 signs of suspicious and unexpected behavior. Auditing file shares records events related to connection to shares on a system including system shares such as C$.
Checks: C-56773r829042_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open PowerShell or a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following: Object Access >> File Share - Success If the system does not audit the above, this is a finding.

Fix: F-56723r829043_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> "Audit File Share" with "Success" selected.

b
Windows 11 must be configured to audit Object Access - Other Object Access Events successes.
AU-12 - Medium - CCI-000172 - V-253321 - SV-253321r829047_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000083
Vuln IDs
  • V-253321
Rule IDs
  • SV-253321r829047_rule
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 signs of suspicious and unexpected behavior. Auditing for other object access records events related to the management of task scheduler jobs and COM+ objects.
Checks: C-56774r829045_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open PowerShell or a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following: Object Access >> Other Object Access Events - Success If the system does not audit the above, this is a finding.

Fix: F-56724r829046_fix

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.

b
Windows 11 must be configured to audit Object Access - Other Object Access Events failures.
AU-12 - Medium - CCI-000172 - V-253322 - SV-253322r829050_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000084
Vuln IDs
  • V-253322
Rule IDs
  • SV-253322r829050_rule
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 signs of suspicious and unexpected behavior. Auditing for other object access records events related to the management of task scheduler jobs and COM+ objects.
Checks: C-56775r829048_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open PowerShell or a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following: Object Access >> Other Object Access Events - Failure If the system does not audit the above, this is a finding.

Fix: F-56725r829049_fix

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.

b
The system must be configured to audit Object Access - Removable Storage failures.
AU-12 - Medium - CCI-000172 - V-253323 - SV-253323r829053_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000085
Vuln IDs
  • V-253323
Rule IDs
  • SV-253323r829053_rule
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 signs of suspicious and unexpected behavior. Auditing object access for removable media records events related to access attempts on file system objects on removable storage devices.
Checks: C-56776r829051_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Object Access >> Removable Storage - Failure Some virtual machines may generate excessive audit events for access to the virtual hard disk itself when this setting is enabled. This may be set to Not Configured in such cases and would not be a finding. This must be documented with the ISSO to include mitigations such as monitoring or restricting any actual removable storage connected to the VM.

Fix: F-56726r829052_fix

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.

b
The system must be configured to audit Object Access - Removable Storage successes.
AU-12 - Medium - CCI-000172 - V-253324 - SV-253324r829056_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000090
Vuln IDs
  • V-253324
Rule IDs
  • SV-253324r829056_rule
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 signs of suspicious and unexpected behavior. Auditing object access for removable media records events related to access attempts on file system objects on removable storage devices.
Checks: C-56777r829054_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Object Access >> Removable Storage - Success Some virtual machines may generate excessive audit events for access to the virtual hard disk itself when this setting is enabled. This may be set to Not Configured in such cases and would not be a finding. This must be documented with the ISSO to include mitigations such as monitoring or restricting any actual removable storage connected to the VM.

Fix: F-56727r829055_fix

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.

b
The system must be configured to audit Policy Change - Audit Policy Change successes.
AU-12 - Medium - CCI-000172 - V-253325 - SV-253325r829059_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000100
Vuln IDs
  • V-253325
Rule IDs
  • SV-253325r829059_rule
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 signs of suspicious and unexpected behavior. Audit Policy Change records events related to changes in audit policy.
Checks: C-56778r829057_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Policy Change >> Audit Policy Change - Success

Fix: F-56728r829058_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> "Audit Policy Change" with "Success" selected.

b
The system must be configured to audit Policy Change - Authentication Policy Change successes.
AU-12 - Medium - CCI-000172 - V-253326 - SV-253326r829062_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000105
Vuln IDs
  • V-253326
Rule IDs
  • SV-253326r829062_rule
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 signs of suspicious and unexpected behavior. Authentication Policy Change records events related to changes in authentication policy including Kerberos policy and Trust changes.
Checks: C-56779r829060_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Policy Change >> Authentication Policy Change - Success

Fix: F-56729r829061_fix

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.

b
The system must be configured to audit Policy Change - Authorization Policy Change successes.
AU-12 - Medium - CCI-000172 - V-253327 - SV-253327r829065_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000107
Vuln IDs
  • V-253327
Rule IDs
  • SV-253327r829065_rule
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 signs of suspicious and unexpected behavior. Authorization Policy Change records events related to changes in user rights, such as create a token object.
Checks: C-56780r829063_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: -Open a Command Prompt with elevated privileges ("Run as Administrator"). -Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding. Policy Change >> Authorization Policy Change - Success

Fix: F-56730r829064_fix

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.

b
The system must be configured to audit Privilege Use - Sensitive Privilege Use failures.
AC-6 - Medium - CCI-002234 - V-253328 - SV-253328r829068_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002234
Version
WN11-AU-000110
Vuln IDs
  • V-253328
Rule IDs
  • SV-253328r829068_rule
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 signs of suspicious and unexpected behavior. Sensitive Privilege Use records events related to use of sensitive privileges, such as "Act as part of the operating system" or "Debug programs".
Checks: C-56781r829066_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Privilege Use >> Sensitive Privilege Use - Failure

Fix: F-56731r829067_fix

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.

b
The system must be configured to audit Privilege Use - Sensitive Privilege Use successes.
AU-12 - Medium - CCI-000172 - V-253329 - SV-253329r829071_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000115
Vuln IDs
  • V-253329
Rule IDs
  • SV-253329r829071_rule
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 signs of suspicious and unexpected behavior. Sensitive Privilege Use records events related to use of sensitive privileges, such as "Act as part of the operating system" or "Debug programs".
Checks: C-56782r829069_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Privilege Use >> Sensitive Privilege Use - Success

Fix: F-56732r829070_fix

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.

b
The system must be configured to audit System - IPsec Driver failures.
AU-12 - Medium - CCI-000172 - V-253330 - SV-253330r829074_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000120
Vuln IDs
  • V-253330
Rule IDs
  • SV-253330r829074_rule
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 signs of suspicious and unexpected behavior. IPsec Driver records events related to the IPsec Driver such as dropped packets.
Checks: C-56783r829072_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> IPsec Driver - Failure

Fix: F-56733r829073_fix

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.

b
The system must be configured to audit System - Other System Events successes.
AU-12 - Medium - CCI-000172 - V-253331 - SV-253331r829077_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000130
Vuln IDs
  • V-253331
Rule IDs
  • SV-253331r829077_rule
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 signs of suspicious and unexpected behavior. Audit Other System Events records information related to cryptographic key operations and the Windows Firewall service.
Checks: C-56784r829075_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> Other System Events - Success

Fix: F-56734r829076_fix

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.

b
The system must be configured to audit System - Other System Events failures.
AU-12 - Medium - CCI-000172 - V-253332 - SV-253332r829080_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000135
Vuln IDs
  • V-253332
Rule IDs
  • SV-253332r829080_rule
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 signs of suspicious and unexpected behavior. Audit Other System Events records information related to cryptographic key operations and the Windows Firewall service.
Checks: C-56785r829078_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*" Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> Other System Events - Failure

Fix: F-56735r829079_fix

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.

b
The system must be configured to audit System - Security State Change successes.
AU-12 - Medium - CCI-000172 - V-253333 - SV-253333r829083_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000140
Vuln IDs
  • V-253333
Rule IDs
  • SV-253333r829083_rule
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 signs of suspicious and unexpected behavior. Security State Change records events related to changes in the security state, such as startup and shutdown of the system.
Checks: C-56786r829081_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> Security State Change - Success

Fix: F-56736r829082_fix

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.

b
The system must be configured to audit System - Security System Extension successes.
AU-12 - Medium - CCI-000172 - V-253334 - SV-253334r829086_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000150
Vuln IDs
  • V-253334
Rule IDs
  • SV-253334r829086_rule
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 signs of suspicious and unexpected behavior. Security System Extension records events related to extension code being loaded by the security subsystem.
Checks: C-56787r829084_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> Security System Extension - Success

Fix: F-56737r829085_fix

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.

b
The system must be configured to audit System - System Integrity failures.
AU-12 - Medium - CCI-000172 - V-253335 - SV-253335r829089_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000155
Vuln IDs
  • V-253335
Rule IDs
  • SV-253335r829089_rule
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 signs of suspicious and unexpected behavior. System Integrity records events related to violations of integrity to the security subsystem.
Checks: C-56788r829087_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> System Integrity - Failure

Fix: F-56738r829088_fix

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.

b
The system must be configured to audit System - System Integrity successes.
AU-12 - Medium - CCI-000172 - V-253336 - SV-253336r829092_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-AU-000160
Vuln IDs
  • V-253336
Rule IDs
  • SV-253336r829092_rule
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 signs of suspicious and unexpected behavior. System Integrity records events related to violations of integrity to the security subsystem.
Checks: C-56789r829090_chk

Security Option "Audit: Force audit policy subcategory settings to override audit policy category settings" must be set to "Enabled" (WN11-SO-000030) for the detailed auditing subcategories to be effective. Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: System >> System Integrity - Success

Fix: F-56739r829091_fix

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.

b
The Application event log size must be configured to 32768 KB or greater.
AU-4 - Medium - CCI-001849 - V-253337 - SV-253337r877391_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
WN11-AU-000500
Vuln IDs
  • V-253337
Rule IDs
  • SV-253337r877391_rule
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.
Checks: C-56790r829093_chk

If the system is configured to send audit records directly to an audit server, this is NA. This must be documented with the ISSO. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\EventLog\Application\ Value Name: MaxSize Value Type: REG_DWORD Value: 0x00008000 (32768) (or greater)

Fix: F-56740r829094_fix

If the system is configured to send audit records directly to an audit server, this is NA. This must be documented with the ISSO. 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.

b
The Security event log size must be configured to 1024000 KB or greater.
AU-4 - Medium - CCI-001849 - V-253338 - SV-253338r877391_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
WN11-AU-000505
Vuln IDs
  • V-253338
Rule IDs
  • SV-253338r877391_rule
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.
Checks: C-56791r829096_chk

If the system is configured to send audit records directly to an audit server, this is NA. This must be documented with the ISSO. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\EventLog\Security\ Value Name: MaxSize Value Type: REG_DWORD Value: 0x000fa000 (1024000) (or greater)

Fix: F-56741r829097_fix

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 "1024000" or greater. If the system is configured to send audit records directly to an audit server, this must be documented with the ISSO.

b
The System event log size must be configured to 32768 KB or greater.
AU-4 - Medium - CCI-001849 - V-253339 - SV-253339r877391_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
WN11-AU-000510
Vuln IDs
  • V-253339
Rule IDs
  • SV-253339r877391_rule
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.
Checks: C-56792r829099_chk

If the system is configured to send audit records directly to an audit server, this is NA. This must be documented with the ISSO. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\EventLog\System\ Value Name: MaxSize Value Type: REG_DWORD Value: 0x00008000 (32768) (or greater)

Fix: F-56742r829100_fix

If the system is configured to send audit records directly to an audit server, this is NA. This must be documented with the ISSO. 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.

b
Windows 11 permissions for the Application event log must prevent access by non-privileged accounts.
AU-9 - Medium - CCI-000162 - V-253340 - SV-253340r829104_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
WN11-AU-000515
Vuln IDs
  • V-253340
Rule IDs
  • SV-253340r829104_rule
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. The Application event log may be susceptible to tampering if proper permissions are not applied.
Checks: C-56793r829102_chk

Verify the permissions on the Application event log (Application.evtx). Standard user accounts or groups must not have access. The default permissions listed below satisfy this requirement. Eventlog - Full Control SYSTEM - Full Control Administrators - Full Control The default location is the "%SystemRoot%\SYSTEM32\WINEVT\LOGS" directory. They may have been moved to another folder. If the permissions for these files are not as restrictive as the ACLs listed, this is a finding. Note: If "APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES" has Special Permissions, this would not be a finding.

Fix: F-56743r829103_fix

Ensure the permissions on the Application event log (Application.evtx) are configured to prevent standard user accounts or groups from having access. The default permissions listed below satisfy this requirement. Eventlog - Full Control SYSTEM - Full Control Administrators - Full Control The default location is the "%SystemRoot%\SYSTEM32\WINEVT\LOGS" directory. If the location of the logs has been changed, when adding Eventlog to the permissions, it must be entered as "NT Service\Eventlog".

b
Windows 11 permissions for the Security event log must prevent access by non-privileged accounts.
AU-9 - Medium - CCI-000162 - V-253341 - SV-253341r829107_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
WN11-AU-000520
Vuln IDs
  • V-253341
Rule IDs
  • SV-253341r829107_rule
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. The Security event log may disclose sensitive information or be susceptible to tampering if proper permissions are not applied.
Checks: C-56794r829105_chk

Verify the permissions on the Security event log (Security.evtx). Standard user accounts or groups must not have access. The default permissions listed below satisfy this requirement. Eventlog - Full Control SYSTEM - Full Control Administrators - Full Control The default location is the "%SystemRoot%\SYSTEM32\WINEVT\LOGS" directory. They may have been moved to another folder. If the permissions for these files are not as restrictive as the ACLs listed, this is a finding. Note: If "APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES" has Special Permissions, this would not be a finding.

Fix: F-56744r829106_fix

Ensure the permissions on the Security event log (Security.evtx) are configured to prevent standard user accounts or groups from having access. The default permissions listed below satisfy this requirement. Eventlog - Full Control SYSTEM - Full Control Administrators - Full Control The default location is the "%SystemRoot%\SYSTEM32\WINEVT\LOGS" directory. If the location of the logs has been changed, when adding Eventlog to the permissions, it must be entered as "NT Service\Eventlog".

b
Windows 11 permissions for the System event log must prevent access by non-privileged accounts.
AU-9 - Medium - CCI-000162 - V-253342 - SV-253342r829110_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
WN11-AU-000525
Vuln IDs
  • V-253342
Rule IDs
  • SV-253342r829110_rule
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. The System event log may be susceptible to tampering if proper permissions are not applied.
Checks: C-56795r829108_chk

Verify the permissions on the System event log (System.evtx). Standard user accounts or groups must not have access. The default permissions listed below satisfy this requirement. Eventlog - Full Control SYSTEM - Full Control Administrators - Full Control The default location is the "%SystemRoot%\SYSTEM32\WINEVT\LOGS" directory. They may have been moved to another folder. If the permissions for these files are not as restrictive as the ACLs listed, this is a finding. Note: If "APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES" has Special Permissions, this would not be a finding.

Fix: F-56745r829109_fix

Ensure the permissions on the System event log (System.evtx) are configured to prevent standard user accounts or groups from having access. The default permissions listed below satisfy this requirement. Eventlog - Full Control SYSTEM - Full Control Administrators - Full Control The default location is the "%SystemRoot%\SYSTEM32\WINEVT\LOGS" directory. If the location of the logs has been changed, when adding Eventlog to the permissions, it must be entered as "NT Service\Eventlog".

b
Windows 11 must be configured to audit Other Policy Change Events Successes.
AU-3 - Medium - CCI-000130 - V-253343 - SV-253343r829113_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000550
Vuln IDs
  • V-253343
Rule IDs
  • SV-253343r829113_rule
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 signs of suspicious and unexpected behavior. Audit Other Policy Change Events contains events about EFS Data Recovery Agent policy changes, changes in Windows Filtering Platform filter, status on Security policy settings updates for local Group Policy settings, Central Access Policy changes, and detailed troubleshooting events for Cryptographic Next Generation (CNG) operations.
Checks: C-56796r829111_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Policy Change >> Other Policy Change Events - Success

Fix: F-56746r829112_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change>> "Audit Other Policy Change Events" with "Success" selected.

b
Windows 11 must be configured to audit Other Policy Change Events Failures.
AU-3 - Medium - CCI-000130 - V-253344 - SV-253344r829116_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000555
Vuln IDs
  • V-253344
Rule IDs
  • SV-253344r829116_rule
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 signs of suspicious and unexpected behavior. Audit Other Policy Change Events contains events about EFS Data Recovery Agent policy changes, changes in Windows Filtering Platform filter, status on Security policy settings updates for local Group Policy settings, Central Access Policy changes, and detailed troubleshooting events for Cryptographic Next Generation (CNG) operations.
Checks: C-56797r829114_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Policy Change >> Other Policy Change Events - Failure

Fix: F-56747r829115_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change>> "Audit Other Policy Change Events" with "Failure" selected.

b
Windows 11 must be configured to audit other Logon/Logoff Events Successes.
AU-3 - Medium - CCI-000130 - V-253345 - SV-253345r829119_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000560
Vuln IDs
  • V-253345
Rule IDs
  • SV-253345r829119_rule
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 signs of suspicious and unexpected behavior. Audit Other Logon/Logoff Events determines whether Windows generates audit events for other logon or logoff events. Logon events are essential to understanding user activity and detecting potential attacks.
Checks: C-56798r829117_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Other Logon/Logoff Events - Success

Fix: F-56748r829118_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> "Audit Other Logon/Logoff Events" with "Success" selected.

b
Windows 11 must be configured to audit other Logon/Logoff Events Failures.
AU-3 - Medium - CCI-000130 - V-253346 - SV-253346r829122_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000565
Vuln IDs
  • V-253346
Rule IDs
  • SV-253346r829122_rule
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 signs of suspicious and unexpected behavior. Audit Other Logon/Logoff Events determines whether Windows generates audit events for other logon or logoff events. Logon events are essential to understanding user activity and detecting potential attacks.
Checks: C-56799r829120_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Logon/Logoff >> Other Logon/Logoff Events - Failure

Fix: F-56749r829121_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Logon/Logoff >> "Audit Other Logon/Logoff Events" with "Failure" selected.

b
Windows 11 must be configured to audit Detailed File Share Failures.
AU-3 - Medium - CCI-000130 - V-253347 - SV-253347r829125_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000570
Vuln IDs
  • V-253347
Rule IDs
  • SV-253347r829125_rule
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 signs of suspicious and unexpected behavior. Audit Detailed File Share allows the user to audit attempts to access files and folders on a shared folder. The Detailed File Share setting logs an event every time a file or folder is accessed, whereas the File Share setting only records one event for any connection established between a client and file share. Detailed File Share audit events include detailed information about the permissions or other criteria used to grant or deny access.
Checks: C-56800r829123_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Object Access >> Detailed File Share - Failure

Fix: F-56750r829124_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Object Access >> Audit Detailed File Share" with "Failure" selected.

b
Windows 11 must be configured to audit MPSSVC Rule-Level Policy Change Successes.
AU-3 - Medium - CCI-000130 - V-253348 - SV-253348r829128_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000575
Vuln IDs
  • V-253348
Rule IDs
  • SV-253348r829128_rule
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 signs of suspicious and unexpected behavior. Audit MPSSVC Rule-Level Policy Change determines whether the operating system generates audit events when changes are made to policy rules for the Microsoft Protection Service (MPSSVC.exe).
Checks: C-56801r829126_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Policy Change >> MPSSVC Rule-Level Policy Change - Success

Fix: F-56751r829127_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> Audit MPSSVC Rule-Level Policy Change" with "Success" selected.

b
Windows 11 must be configured to audit MPSSVC Rule-Level Policy Change Failures.
AU-3 - Medium - CCI-000130 - V-253349 - SV-253349r829131_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN11-AU-000580
Vuln IDs
  • V-253349
Rule IDs
  • SV-253349r829131_rule
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 signs of suspicious and unexpected behavior. Audit MPSSVC Rule-Level Policy Change determines whether the operating system generates audit events when changes are made to policy rules for the Microsoft Protection Service (MPSSVC.exe).
Checks: C-56802r829129_chk

Use the AuditPol tool to review the current Audit Policy configuration: Open a Command Prompt with elevated privileges ("Run as Administrator"). Enter "AuditPol /get /category:*". Compare the AuditPol settings with the following. If the system does not audit the following, this is a finding: Policy Change >> MPSSVC Rule-Level Policy Change - Failure

Fix: F-56752r829130_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Advanced Audit Policy Configuration >> System Audit Policies >> Policy Change >> Audit MPSSVC Rule-Level Policy Change" with "Failure" selected.

b
Camera access from the lock screen must be disabled.
CM-7 - Medium - CCI-000381 - V-253350 - SV-253350r829134_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000005
Vuln IDs
  • V-253350
Rule IDs
  • SV-253350r829134_rule
Enabling camera access from the lock screen could allow for unauthorized use. Requiring logon will ensure the device is only used by authorized personnel.
Checks: C-56803r829132_chk

If the device does not have a camera, this is NA. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Personalization\ Value Name: NoLockScreenCamera Value Type: REG_DWORD Value: 1

Fix: F-56753r829133_fix

If the device does not have a camera, this is NA. Configure the policy value for Computer Configuration >> Administrative Templates >> Control Panel >> Personalization >> "Prevent enabling lock screen camera" to "Enabled".

b
Windows 11 must cover or disable the built-in or attached camera when not in use.
CM-7 - Medium - CCI-000381 - V-253351 - SV-253351r829137_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000007
Vuln IDs
  • V-253351
Rule IDs
  • SV-253351r829137_rule
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Failing to disconnect from collaborative computing devices (i.e. cameras) can result in subsequent compromises of organizational information. Providing easy methods to physically disconnect from such devices after a collaborative computing session helps to ensure that participants actually carry out the disconnect activity without having to go through complex and tedious procedures. Satisfies: SRG-OS-000095-GPOS-00049, SRG-OS-000370-GPOS-00155
Checks: C-56804r829135_chk

If the device or operating system does not have a camera installed, this requirement is not applicable. This requirement is not applicable to mobile devices (smartphones and tablets), where the use of the camera is a local AO decision. This requirement is not applicable to dedicated VTC suites located in approved VTC locations that are centrally managed. For an external camera, if there is not a method for the operator to manually disconnect camera at the end of collaborative computing sessions, this is a finding. For a built-in camera, the camera must be protected by a camera cover (e.g. laptop camera cover slide) when not in use. If the built-in camera is not protected with a camera cover, or if the built-in camera is not disabled in the bios, this is a finding. If the camera is not disconnected or covered, the following registry entry is required: Registry Hive: HKEY_LOCAL_MACHINE RegistryPath\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\webcam Value Name: Deny If "Value Name" is set to a value other than "Deny" and the collaborative computing device has not been authorized for use, this is a finding.

Fix: F-56754r829136_fix

If the camera is not disconnected or covered, the following registry entry is required. Registry Hive: HKEY_LOCAL_MACHINE RegistryPath\SOFTWARE\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\webcam Value Name: Deny

b
The display of slide shows on the lock screen must be disabled.
CM-7 - Medium - CCI-000381 - V-253352 - SV-253352r829140_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000010
Vuln IDs
  • V-253352
Rule IDs
  • SV-253352r829140_rule
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.
Checks: C-56805r829138_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Personalization\ Value Name: NoLockScreenSlideshow Value Type: REG_DWORD Value: 1

Fix: F-56755r829139_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Control Panel >> Personalization >> "Prevent enabling lock screen slide show" to "Enabled".

b
IPv6 source routing must be configured to highest protection.
CM-6 - Medium - CCI-000366 - V-253353 - SV-253353r829143_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000020
Vuln IDs
  • V-253353
Rule IDs
  • SV-253353r829143_rule
Configuring the system to disable IPv6 source routing protects against spoofing.
Checks: C-56806r829141_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\ Value Name: DisableIpSourceRouting Value Type: REG_DWORD Value: 2

Fix: F-56756r829142_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> "MSS: (DisableIPSourceRouting IPv6) IP source routing protection level (protects against packet spoofing)" to "Highest protection, source routing is completely disabled". This 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.

b
The system must be configured to prevent IP source routing.
CM-6 - Medium - CCI-000366 - V-253354 - SV-253354r829146_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000025
Vuln IDs
  • V-253354
Rule IDs
  • SV-253354r829146_rule
Configuring the system to disable IP source routing protects against spoofing.
Checks: C-56807r829144_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: DisableIPSourceRouting Value Type: REG_DWORD Value: 2

Fix: F-56757r829145_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> "MSS: (DisableIPSourceRouting) IP source routing protection level (protects against packet spoofing)" to "Highest protection, source routing is completely disabled". This 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.

a
The system must be configured to prevent Internet Control Message Protocol (ICMP) redirects from overriding Open Shortest Path First (OSPF) generated routes.
CM-6 - Low - CCI-000366 - V-253355 - SV-253355r829149_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-CC-000030
Vuln IDs
  • V-253355
Rule IDs
  • SV-253355r829149_rule
Allowing ICMP redirect of routes can lead to traffic not being routed properly. When disabled, this forces ICMP to be routed via shortest path first.
Checks: C-56808r829147_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ Value Name: EnableICMPRedirect Value Type: REG_DWORD Value: 0

Fix: F-56758r829148_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MSS (Legacy) >> "MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes" to "Disabled". This 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.

a
The system must be configured to ignore NetBIOS name release requests except from WINS servers.
SC-5 - Low - CCI-002385 - V-253356 - SV-253356r829152_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN11-CC-000035
Vuln IDs
  • V-253356
Rule IDs
  • SV-253356r829152_rule
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 servers WINS resolution capability.
Checks: C-56809r829150_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netbt\Parameters\ Value Name: NoNameReleaseOnDemand Value Type: REG_DWORD Value: 1

Fix: F-56759r829151_fix

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". This 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.

b
Local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain systems.
SC-3 - Medium - CCI-001084 - V-253357 - SV-253357r829155_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN11-CC-000037
Vuln IDs
  • V-253357
Rule IDs
  • SV-253357r829155_rule
A compromised local administrator account can provide means for an attacker to move laterally between domain systems. With User Account Control enabled, filtering the privileged token for built-in administrator accounts will prevent the elevated privileges of these accounts from being used over the network.
Checks: C-56810r829153_chk

If the system is not a member of a domain, this is NA. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: LocalAccountTokenFilterPolicy Value Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56760r829154_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Apply UAC restrictions to local accounts on network logons" to "Enabled". This 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.

b
WDigest Authentication must be disabled.
CM-7 - Medium - CCI-000381 - V-253358 - SV-253358r829158_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000038
Vuln IDs
  • V-253358
Rule IDs
  • SV-253358r829158_rule
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 11. This setting ensures this is enforced.
Checks: C-56811r829156_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\SecurityProviders\Wdigest\ Value Name: UseLogonCredential Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56761r829157_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "WDigest Authentication (disabling may require KB2871997)" to "Disabled". The patch referenced in the policy title is not required for Windows 11. This 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.

b
Run as different user must be removed from context menus.
CM-7 - Medium - CCI-000381 - V-253359 - SV-253359r829161_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000039
Vuln IDs
  • V-253359
Rule IDs
  • SV-253359r829161_rule
The "Run as different user" selection from context menus allows the use of credentials other than the currently logged on user. Using privileged credentials in a standard user session can expose those credentials to theft. Removing this option from context menus helps prevent this from occurring.
Checks: C-56812r829159_chk

If the following registry values do not exist or are not configured as specified, this is a finding. The policy configures the same Value Name, Type and Value under four different registry paths. Registry Hive: HKEY_LOCAL_MACHINE Registry Paths: \SOFTWARE\Classes\batfile\shell\runasuser\ \SOFTWARE\Classes\cmdfile\shell\runasuser\ \SOFTWARE\Classes\exefile\shell\runasuser\ \SOFTWARE\Classes\mscfile\shell\runasuser\ Value Name: SuppressionPolicy Type: REG_DWORD Value: 0x00001000 (4096)

Fix: F-56762r829160_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Remove "Run as Different User" from context menus" to "Enabled". This 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.

b
Insecure logons to an SMB server must be disabled.
CM-6 - Medium - CCI-000366 - V-253360 - SV-253360r829164_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000040
Vuln IDs
  • V-253360
Rule IDs
  • SV-253360r829164_rule
Insecure guest logons allow unauthenticated access to shared folders. Shared resources on a system must require authentication to establish proper access.
Checks: C-56813r829162_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\LanmanWorkstation\ Value Name: AllowInsecureGuestAuth Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56763r829163_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Lanman Workstation >> "Enable insecure guest logons" to "Disabled".

b
Internet connection sharing must be disabled.
CM-7 - Medium - CCI-000381 - V-253361 - SV-253361r829167_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000044
Vuln IDs
  • V-253361
Rule IDs
  • SV-253361r829167_rule
Internet connection sharing makes it possible for an existing internet connection, such as through wireless, to be shared and used by other systems essentially creating a mobile hotspot. This exposes the system sharing the connection to others with potentially malicious purpose.
Checks: C-56814r829165_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Network Connections\ Value Name: NC_ShowSharedAccessUI Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56764r829166_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Network Connections >> "Prohibit use of Internet Connection Sharing on your DNS domain network" to "Enabled".

b
Hardened UNC Paths must be defined to require mutual authentication and integrity for at least the \\*\SYSVOL and \\*\NETLOGON shares.
CM-6 - Medium - CCI-000366 - V-253362 - SV-253362r829170_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000050
Vuln IDs
  • V-253362
Rule IDs
  • SV-253362r829170_rule
Additional security requirements are applied to Universal Naming Convention (UNC) paths specified in Hardened UNC paths before allowing access them. This aids in preventing tampering with or spoofing of connections to these paths.
Checks: C-56815r829168_chk

This requirement is applicable to domain-joined systems, for standalone systems this is NA. If the following registry values do not exist or are not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\NetworkProvider\HardenedPaths\ Value Name: \\*\NETLOGON Value Type: REG_SZ Value: RequireMutualAuthentication=1, RequireIntegrity=1 Value Name: \\*\SYSVOL Value Type: REG_SZ Value: RequireMutualAuthentication=1, RequireIntegrity=1 Additional entries would not be a finding.

Fix: F-56765r829169_fix

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). Value Name: \\*\SYSVOL Value: RequireMutualAuthentication=1, RequireIntegrity=1 Value Name: \\*\NETLOGON Value: RequireMutualAuthentication=1, RequireIntegrity=1

b
Windows 11 must be configured to prioritize ECC Curves with longer key lengths first.
IA-7 - Medium - CCI-000803 - V-253363 - SV-253363r829173_rule
RMF Control
IA-7
Severity
Medium
CCI
CCI-000803
Version
WN11-CC-000052
Vuln IDs
  • V-253363
Rule IDs
  • SV-253363r829173_rule
Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. By default Windows uses ECC curves with shorter key lengths first. Requiring ECC curves with longer key lengths to be prioritized first helps ensure more secure algorithms are used.
Checks: C-56816r829171_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010002\ Value Name: EccCurves Value Type: REG_MULTI_SZ Value: NistP384 NistP256

Fix: F-56766r829172_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> SSL Configuration Settings >> "ECC Curve Order" to "Enabled" with "ECC Curve Order:" including the following in the order listed: NistP384 NistP256

b
Simultaneous connections to the internet or a Windows domain must be limited.
SC-8 - Medium - CCI-002418 - V-253364 - SV-253364r916433_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-CC-000055
Vuln IDs
  • V-253364
Rule IDs
  • SV-253364r916433_rule
Multiple network connections can provide additional attack vectors to a system and must be limited. The "Minimize the number of simultaneous connections to the Internet or a Windows Domain" setting prevents systems from automatically establishing multiple connections. When both wired and wireless connections are available, for example, the less preferred connection (typically wireless) will be disconnected.
Checks: C-56817r890453_chk

The default behavior for "Minimize the number of simultaneous connections to the Internet or a Windows Domain" is "Enabled". If it exists and is configured with a value of "0", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WcmSvc\GroupPolicy\ Value Name: fMinimizeConnections Value Type: REG_DWORD Value: 3 (or if the Value Name does not exist)

Fix: F-56767r890454_fix

The default behavior for "Minimize the number of simultaneous connections to the Internet or a Windows Domain" is "Enabled". If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Windows Connection Manager >> "Minimize the number of simultaneous connections to the Internet or a Windows Domain" to "Enabled". Under "Options", set "Minimize Policy Options" to "3 = Prevent Wi-Fi When on Ethernet".

b
Connections to non-domain networks when connected to a domain authenticated network must be blocked.
CM-6 - Medium - CCI-000366 - V-253365 - SV-253365r829179_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000060
Vuln IDs
  • V-253365
Rule IDs
  • SV-253365r829179_rule
Multiple network connections can provide additional attack vectors to a system and must be limited. When connected to a domain, communication must go through the domain connection.
Checks: C-56818r829177_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WcmSvc\GroupPolicy\ Value Name: fBlockNonDomain Value Type: REG_DWORD Value: 1

Fix: F-56768r829178_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Windows Connection Manager >> "Prohibit connection to non-domain networks when connected to domain authenticated network" to "Enabled".

b
Wi-Fi Sense must be disabled.
CM-6 - Medium - CCI-000366 - V-253366 - SV-253366r829182_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000065
Vuln IDs
  • V-253366
Rule IDs
  • SV-253366r829182_rule
Wi-Fi Sense automatically connects the system to known hotspots and networks that contacts have shared. It also allows the sharing of the system's known networks to contacts. Automatically connecting to hotspots and shared networks can expose a system to unsecured or potentially malicious systems.
Checks: C-56819r829180_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\WcmSvc\wifinetworkmanager\config\ Value Name: AutoConnectAllowedOEM Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56769r829181_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> WLAN Service >> WLAN Settings>> "Allow Windows to automatically connect to suggested open hotspots, to networks shared by contacts, and to hotspots offering paid services" to "Disabled".

b
Command line data must be included in process creation events.
AU-3 - Medium - CCI-000135 - V-253367 - SV-253367r829185_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000135
Version
WN11-CC-000066
Vuln IDs
  • V-253367
Rule IDs
  • SV-253367r829185_rule
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 signs of suspicious and unexpected behavior. Enabling "Include command line data for process creation events" will record the command line information with the process creation events in the log. This can provide additional detail when malware has run on a system.
Checks: C-56820r829183_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Audit\ Value Name: ProcessCreationIncludeCmdLine_Enabled Value Type: REG_DWORD Value: 1

Fix: F-56770r829184_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Audit Process Creation >> "Include command line in process creation events" to "Enabled".

b
Windows 11 must be configured to enable Remote host allows delegation of non-exportable credentials.
CM-6 - Medium - CCI-000366 - V-253368 - SV-253368r829188_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000068
Vuln IDs
  • V-253368
Rule IDs
  • SV-253368r829188_rule
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.
Checks: C-56821r829186_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\CredentialsDelegation\ Value Name: AllowProtectedCreds Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-56771r829187_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Credentials Delegation >> "Remote host allows delegation of non-exportable credentials" to "Enabled".

b
Virtualization-based Security must be enabled on Windows 11 with the platform security level configured to Secure Boot or Secure Boot with DMA Protection.
CM-6 - Medium - CCI-000366 - V-253369 - SV-253369r829191_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000070
Vuln IDs
  • V-253369
Rule IDs
  • SV-253369r829191_rule
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).
Checks: C-56822r829189_chk

Confirm virtualization-based Security is enabled and running with Secure Boot or Secure Boot and DMA Protection. For those devices that support virtualization-based security (VBS) features, including Credential Guard or protection of code integrity, this must be enabled. If the system meets the hardware and firmware dependencies for enabling VBS but it is not enabled, this is a CAT III finding. Virtualization-based security, including Credential Guard, currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Run "PowerShell" with elevated privileges (run as administrator). Enter the following: "Get-CimInstance -ClassName Win32_DeviceGuard -Namespace root\Microsoft\Windows\DeviceGuard" If "RequiredSecurityProperties" does not include a value of "2" indicating "Secure Boot" (e.g., "{1, 2}"), this is a finding. If "Secure Boot and DMA Protection" is configured, "3" will also be displayed in the results (e.g., "{1, 2, 3}"). If "VirtualizationBasedSecurityStatus" is not a value of "2" indicating "Running", this is a finding. Alternately: Run "System Information". Under "System Summary", verify the following: If "Device Guard virtualization-based security" does not display "Running", this is finding. If "Device Guard Required Security Properties" does not display "Base Virtualization Support, Secure Boot", this is finding. If "Secure Boot and DMA Protection" is configured, "DMA Protection" will also be displayed (e.g., "Base Virtualization Support, Secure Boot, DMA Protection"). The policy settings referenced in the Fix section will configure the following registry values. However due to hardware requirements, the registry values alone do not ensure proper function. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\DeviceGuard\ Value Name: EnableVirtualizationBasedSecurity Value Type: REG_DWORD Value: 1 Value Name: RequirePlatformSecurityFeatures Value Type: REG_DWORD Value: 1 (Secure Boot only) or 3 (Secure Boot and DMA Protection) A Microsoft article on Credential Guard system requirement can be found at the following link: https://technet.microsoft.com/en-us/itpro/windows/keep-secure/credential-guard-requirements

Fix: F-56772r829190_fix

Virtualization-based security, including Credential Guard, currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. 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 for "Select Platform Security Level:". A Microsoft article on Credential Guard system requirement can be found at the following link. https://technet.microsoft.com/en-us/itpro/windows/keep-secure/credential-guard-requirements

c
Credential Guard must be running on Windows 11 domain-joined systems.
CM-6 - High - CCI-000366 - V-253370 - SV-253370r829194_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN11-CC-000075
Vuln IDs
  • V-253370
Rule IDs
  • SV-253370r829194_rule
Credential Guard uses virtualization-based security to protect information 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.
Checks: C-56823r829192_chk

Confirm Credential Guard is running on domain-joined systems. For those devices that support Credential Guard, this feature must be enabled. Organizations need to take the appropriate action to acquire and implement compatible hardware with Credential Guard enabled. Virtualization-based security, including Credential Guard, currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Run "PowerShell" with elevated privileges (run as administrator). Enter the following: "Get-CimInstance -ClassName Win32_DeviceGuard -Namespace root\Microsoft\Windows\DeviceGuard" If "SecurityServicesRunning" does not include a value of "1" (e.g., "{1, 2}"), this is a finding. Alternately: Run "System Information". Under "System Summary", verify the following: If "virtualization-based Services Running" does not list "Credential Guard", this is finding. The policy settings referenced in the Fix section will configure the following registry value. However, due to hardware requirements, the registry value alone does not ensure proper function. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\DeviceGuard\ Value Name: LsaCfgFlags Value Type: REG_DWORD Value: 0x00000001 (1) (Enabled with UEFI lock)

Fix: F-56773r829193_fix

Virtualization-based security, including Credential Guard, currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. For VDIs with persistent desktops, this may be downgraded to a CAT II only where administrators have specific tokens for the VDI. Administrator accounts on virtual desktops must only be used on systems in the VDI; they may not have administrative privileges on any other systems such as servers and physical workstations. 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:". A Microsoft TechNet article on Credential Guard, including system requirement details, can be found at the following link: https://docs.microsoft.com/en-us/windows/access-protection/credential-guard/credential-guard

b
Virtualization-based protection of code integrity must be enabled.
CM-6 - Medium - CCI-000366 - V-253371 - SV-253371r829197_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000080
Vuln IDs
  • V-253371
Rule IDs
  • SV-253371r829197_rule
Virtualization-based protection of code integrity enforces kernel mode memory protections as well as protecting Code Integrity validation paths. This isolates the processes from the rest of the operating system and can only be accessed by privileged system software.
Checks: C-56824r829195_chk

Confirm virtualization-based protection of code integrity. For those devices that support the virtualization-based security (VBS) feature for protection of code integrity, this must be enabled. If the system meets the hardware, firmware and compatible device driver dependencies for enabling virtualization-based protection of code integrity but it is not enabled, this is a CAT II finding. Virtualization-based security currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Run "PowerShell" with elevated privileges (run as administrator). Enter the following: "Get-CimInstance -ClassName Win32_DeviceGuard -Namespace root\Microsoft\Windows\DeviceGuard" If "SecurityServicesRunning" does not include a value of "2" (e.g., "{1, 2}"), this is a finding. Alternately: Run "System Information". Under "System Summary", verify the following: If "Virtualization-based Security Services Running" does not list "Hypervisor enforced Code Integrity", this is finding. The policy settings referenced in the Fix section will configure the following registry value. However due to hardware requirements, the registry value alone does not ensure proper function. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\DeviceGuard\ Value Name: HypervisorEnforcedCodeIntegrity Value Type: REG_DWORD Value: 0x00000001 (1) (Enabled with UEFI lock), or 0x00000002 (2) (Enabled without lock)

Fix: F-56774r829196_fix

Virtualization-based security currently cannot be implemented in virtual desktop implementations (VDI) due to specific supporting requirements including a TPM, UEFI with Secure Boot, and the capability to run the Hyper-V feature within the virtual desktop. For VDIs where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Device Guard >> "Turn On virtualization-based Security" to "Enabled" with "Enabled with UEFI lock" or "Enabled without lock" selected for "virtualization-based Protection of Code Integrity:". "Enabled with UEFI lock" is preferred as more secure, however it cannot be turned off remotely through a group policy change if there is an issue. "Enabled without lock" will allow this to be turned off remotely while testing for issues.

b
Early Launch Antimalware, Boot-Start Driver Initialization Policy must prevent boot drivers.
CM-6 - Medium - CCI-000366 - V-253372 - SV-253372r829200_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000085
Vuln IDs
  • V-253372
Rule IDs
  • SV-253372r829200_rule
The default behavior is for Early Launch Antimalware - Boot-Start Driver Initialization policy is to enforce "Good, unknown and bad but critical" (preventing "bad"). By being launched first by the kernel, ELAM ( Early Launch Antimalware) is ensured to be launched before any third-party software, and is therefore able to detect malware in the boot process and prevent it from initializing.
Checks: C-56825r829198_chk

The default behavior is for Early Launch Antimalware - Boot-Start Driver Initialization policy is to enforce "Good, unknown and bad but critical" (preventing "bad"). If the registry value name below does not exist, this is a finding. If it exists and is configured with a value of "7", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Policies\EarlyLaunch\ Value Name: DriverLoadPolicy Value Type: REG_DWORD Value: 1, 3, or 8 Possible values for this setting are: 8 - Good only 1 - Good and unknown 3 - Good, unknown and bad but critical 7 - All (which includes "Bad" and would be a finding)

Fix: F-56775r829199_fix

Ensure that Early Launch Antimalware - Boot-Start Driver Initialization policy is set to enforce "Good, unknown and bad but critical" (preventing "bad"). To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> System >> Early Launch Antimalware >> "Boot-Start Driver Initialization Policy" to "Enabled with "Good, unknown and bad but critical" selected.

b
Group Policy objects must be reprocessed even if they have not changed.
CM-6 - Medium - CCI-000366 - V-253373 - SV-253373r829203_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000090
Vuln IDs
  • V-253373
Rule IDs
  • SV-253373r829203_rule
Enabling this setting and then selecting the "Process even if the Group Policy objects have not changed" option ensures that the policies will be reprocessed even if none have been changed. This way, any unauthorized changes are forced to match the domain-based group policy settings again.
Checks: C-56826r829201_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Group Policy\{35378EAC-683F-11D2-A89A-00C04FBBCFA2} Value Name: NoGPOListChanges Value Type: REG_DWORD Value: 0

Fix: F-56776r829202_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Group Policy >> "Configure registry policy processing" to "Enabled" and select the option "Process even if the Group Policy objects have not changed".

b
Downloading print driver packages over HTTP must be prevented.
CM-7 - Medium - CCI-000381 - V-253374 - SV-253374r829206_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000100
Vuln IDs
  • V-253374
Rule IDs
  • SV-253374r829206_rule
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 uncontrolled updates to the system. This setting prevents the computer from downloading print driver packages over HTTP.
Checks: C-56827r829204_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Printers\ Value Name: DisableWebPnPDownload Value Type: REG_DWORD Value: 1

Fix: F-56777r829205_fix

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".

b
Web publishing and online ordering wizards must be prevented from downloading a list of providers.
CM-7 - Medium - CCI-000381 - V-253375 - SV-253375r829209_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000105
Vuln IDs
  • V-253375
Rule IDs
  • SV-253375r829209_rule
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 uncontrolled updates to the system. This setting prevents Windows from downloading a list of providers for the Web publishing and online ordering wizards.
Checks: C-56828r829207_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: NoWebServices Value Type: REG_DWORD Value: 1

Fix: F-56778r829208_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Internet Communication Management >> Internet Communication settings >> "Turn off Internet download for Web publishing and online ordering wizards" to "Enabled".

b
Printing over HTTP must be prevented.
CM-7 - Medium - CCI-000381 - V-253376 - SV-253376r829212_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000110
Vuln IDs
  • V-253376
Rule IDs
  • SV-253376r829212_rule
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 uncontrolled updates to the system. This setting prevents the client computer from printing over HTTP, which allows the computer to print to printers on the intranet as well as the internet.
Checks: C-56829r829210_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Printers\ Value Name: DisableHTTPPrinting Value Type: REG_DWORD Value: 1

Fix: F-56779r829211_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Internet Communication Management >> Internet Communication settings >> "Turn off printing over HTTP" to "Enabled".

b
Systems must at least attempt device authentication using certificates.
CM-6 - Medium - CCI-000366 - V-253377 - SV-253377r829215_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000115
Vuln IDs
  • V-253377
Rule IDs
  • SV-253377r829215_rule
Using certificates to authenticate devices to the domain provides increased security over passwords. By default systems will attempt to authenticate using certificates and fall back to passwords if the domain controller does not support certificates for devices. This may also be configured to always use certificates for device authentication.
Checks: C-56830r829213_chk

This requirement is applicable to domain-joined systems, for standalone systems this is NA. The default behavior for "Support device authentication using certificate" is "Automatic". If it exists and is configured with a value of "0", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Kerberos\Parameters\ Value Name: DevicePKInitEnabled Value Type: REG_DWORD Value: 1 (or if the Value Name does not exist)

Fix: F-56780r829214_fix

This requirement is applicable to domain-joined systems, for standalone systems this is NA. The default behavior for "Support device authentication using certificate" is "Automatic". To correct this, configured the policy value for Computer Configuration >> Administrative Templates >> System >> Kerberos >> "Support device authentication using certificate" to "Not Configured or "Enabled" with either option selected in "Device authentication behavior using certificate:".

b
The network selection user interface (UI) must not be displayed on the logon screen.
CM-7 - Medium - CCI-000381 - V-253378 - SV-253378r829218_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000120
Vuln IDs
  • V-253378
Rule IDs
  • SV-253378r829218_rule
Enabling interaction with the network selection UI allows users to change connections to available networks without signing into Windows.
Checks: C-56831r829216_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: DontDisplayNetworkSelectionUI Value Type: REG_DWORD Value: 1

Fix: F-56781r829217_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> "Do not display network selection UI" to "Enabled".

b
Local users on domain-joined computers must not be enumerated.
CM-7 - Medium - CCI-000381 - V-253379 - SV-253379r829221_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000130
Vuln IDs
  • V-253379
Rule IDs
  • SV-253379r829221_rule
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.
Checks: C-56832r829219_chk

This requirement is applicable to domain-joined systems, for standalone systems this is NA. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: EnumerateLocalUsers Value Type: REG_DWORD Value: 0

Fix: F-56782r829220_fix

This requirement is applicable to domain-joined systems, for standalone systems this is NA. Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> "Enumerate local users on domain-joined computers" to "Disabled".

b
Users must be prompted for a password on resume from sleep (on battery).
IA-11 - Medium - CCI-002038 - V-253380 - SV-253380r829224_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN11-CC-000145
Vuln IDs
  • V-253380
Rule IDs
  • SV-253380r829224_rule
Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (on battery).
Checks: C-56833r829222_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51\ Value Name: DCSettingIndex Value Type: REG_DWORD Value: 1

Fix: F-56783r829223_fix

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".

b
The user must be prompted for a password on resume from sleep (plugged in).
IA-11 - Medium - CCI-002038 - V-253381 - SV-253381r829227_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN11-CC-000150
Vuln IDs
  • V-253381
Rule IDs
  • SV-253381r829227_rule
Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (plugged in).
Checks: C-56834r829225_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51\ Value Name: ACSettingIndex Value Type: REG_DWORD Value: 1

Fix: F-56784r829226_fix

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".

c
Solicited Remote Assistance must not be allowed.
SC-4 - High - CCI-001090 - V-253382 - SV-253382r829230_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN11-CC-000155
Vuln IDs
  • V-253382
Rule IDs
  • SV-253382r829230_rule
Remote assistance allows another user to view or take control of the local session of a user. Solicited assistance is help that is specifically requested by the local user. This may allow unauthorized parties access to the resources on the computer.
Checks: C-56835r829228_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fAllowToGetHelp Value Type: REG_DWORD Value: 0

Fix: F-56785r829229_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Remote Assistance >> "Configure Solicited Remote Assistance" to "Disabled".

b
Unauthenticated RPC clients must be restricted from connecting to the RPC server.
IA-3 - Medium - CCI-001967 - V-253383 - SV-253383r877039_rule
RMF Control
IA-3
Severity
Medium
CCI
CCI-001967
Version
WN11-CC-000165
Vuln IDs
  • V-253383
Rule IDs
  • SV-253383r877039_rule
Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.
Checks: C-56836r829231_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Rpc\ Value Name: RestrictRemoteClients Value Type: REG_DWORD Value: 1

Fix: F-56786r829232_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Remote Procedure Call >> "Restrict Unauthenticated RPC clients" to "Enabled" and "Authenticated".

a
The setting to allow Microsoft accounts to be optional for modern style apps must be enabled.
CM-6 - Low - CCI-000366 - V-253384 - SV-253384r829236_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-CC-000170
Vuln IDs
  • V-253384
Rule IDs
  • SV-253384r829236_rule
Control of credentials and the system must be maintained within the enterprise. Enabling this setting allows enterprise credentials to be used with modern style apps that support this, instead of Microsoft accounts.
Checks: C-56837r829234_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: MSAOptional Value Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-56787r829235_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> App Runtime >> "Allow Microsoft accounts to be optional" to "Enabled".

a
The Application Compatibility Program Inventory must be prevented from collecting data and sending the information to Microsoft.
CM-7 - Low - CCI-000381 - V-253385 - SV-253385r829239_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN11-CC-000175
Vuln IDs
  • V-253385
Rule IDs
  • SV-253385r829239_rule
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 uncontrolled updates to the system. This setting will prevent the Program Inventory from collecting data about a system and sending the information to Microsoft.
Checks: C-56838r829237_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\AppCompat\ Value Name: DisableInventory Value Type: REG_DWORD Value: 1

Fix: F-56788r829238_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Application Compatibility >> "Turn off Inventory Collector" to "Enabled".

c
Autoplay must be turned off for non-volume devices.
CM-7 - High - CCI-001764 - V-253386 - SV-253386r829242_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN11-CC-000180
Vuln IDs
  • V-253386
Rule IDs
  • SV-253386r829242_rule
Allowing autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon as media is inserted in 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).
Checks: C-56839r829240_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoAutoplayfornonVolume Value Type: REG_DWORD Value: 1

Fix: F-56789r829241_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> AutoPlay Policies >> "Disallow Autoplay for non-volume devices" to "Enabled".

c
The default autorun behavior must be configured to prevent autorun commands.
CM-7 - High - CCI-001764 - V-253387 - SV-253387r829245_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN11-CC-000185
Vuln IDs
  • V-253387
Rule IDs
  • SV-253387r829245_rule
Allowing autorun commands to execute may introduce malicious code to a system. Configuring this setting prevents autorun commands from executing.
Checks: C-56840r829243_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: NoAutorun Value Type: REG_DWORD Value: 1

Fix: F-56790r829244_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> AutoPlay Policies >> "Set the default behavior for AutoRun" to "Enabled:Do not execute any autorun commands".

c
Autoplay must be disabled for all drives.
CM-7 - High - CCI-001764 - V-253388 - SV-253388r829248_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN11-CC-000190
Vuln IDs
  • V-253388
Rule IDs
  • SV-253388r829248_rule
Allowing autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon as media is inserted in 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. If this policy is enabled, autoplay can be disabled on all drives.
Checks: C-56841r829246_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\ Value Name: NoDriveTypeAutoRun Value Type: REG_DWORD Value: 0x000000ff (255) Note: If the value for NoDriveTypeAutorun is entered manually, it must be entered as "ff" when Hexadecimal is selected, or "255" with Decimal selected. Using the policy value specified in the Fix section will enter it correctly.

Fix: F-56791r829247_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> AutoPlay Policies >> "Turn off AutoPlay" to "Enabled:All Drives".

b
Enhanced anti-spoofing for facial recognition must be enabled on Windows 11.
CM-6 - Medium - CCI-000366 - V-253389 - SV-253389r829251_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000195
Vuln IDs
  • V-253389
Rule IDs
  • SV-253389r829251_rule
Enhanced anti-spoofing provides additional protections when using facial recognition with devices that support it.
Checks: C-56842r829249_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Biometrics\FacialFeatures\ Value Name: EnhancedAntiSpoofing Value Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-56792r829250_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Biometrics >> Facial Features >> "Configure enhanced anti-spoofing" to "Enabled".

a
Microsoft consumer experiences must be turned off.
CM-7 - Low - CCI-000381 - V-253390 - SV-253390r829254_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN11-CC-000197
Vuln IDs
  • V-253390
Rule IDs
  • SV-253390r829254_rule
Microsoft consumer experiences provides suggestions and notifications to users, which may include the installation of Windows Store apps. Organizations may control the execution of applications through other means such as allowlisting. Turning off Microsoft consumer experiences will help prevent the unwanted installation of suggested applications.
Checks: C-56843r829252_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\CloudContent\ Value Name: DisableWindowsConsumerFeatures Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-56793r829253_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Cloud Content >> "Turn off Microsoft consumer experiences" to "Enabled".

b
Administrator accounts must not be enumerated during elevation.
SC-3 - Medium - CCI-001084 - V-253391 - SV-253391r829257_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN11-CC-000200
Vuln IDs
  • V-253391
Rule IDs
  • SV-253391r829257_rule
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.
Checks: C-56844r829255_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CredUI\ Value Name: EnumerateAdministrators Value Type: REG_DWORD Value: 0

Fix: F-56794r829256_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Credential User Interface >> "Enumerate administrator accounts on elevation" to "Disabled".

b
Enhanced diagnostic data must be limited to the minimum required to support Windows Analytics.
CM-6 - Medium - CCI-000366 - V-253392 - SV-253392r829260_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000204
Vuln IDs
  • V-253392
Rule IDs
  • SV-253392r829260_rule
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 "Enhanced" level for telemetry includes additional information beyond "Security" and "Basic" on how Windows and apps are used and advanced reliability data. Windows Analytics can use a "limited enhanced" level to provide information such as health data for devices.
Checks: C-56845r829258_chk

If "Enhanced" level is enabled for telemetry, this must be configured. If "Security" or "Basic" are configured, this is NA. (See WN11-CC-000205). If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\DataCollection\ Value Name: LimitEnhancedDiagnosticDataWindowsAnalytics Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-56795r829259_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Data Collection and Preview Builds >> "Limit optional diagnostic data for Windows Analytics" to "Enabled" with "Enable Desktop Analytics collection" selected in "Options:".

b
Windows Telemetry must not be configured to Full.
SI-11 - Medium - CCI-001312 - V-253393 - SV-253393r857208_rule
RMF Control
SI-11
Severity
Medium
CCI
CCI-001312
Version
WN11-CC-000205
Vuln IDs
  • V-253393
Rule IDs
  • SV-253393r857208_rule
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 telemetry client settings. "Basic" sends basic diagnostic and usage data and may be required to support some Microsoft services. "Enhanced" includes additional information on how Windows and apps are used and advanced reliability data. Windows Analytics can use a "limited enhanced" level to provide information such as health data for devices.
Checks: C-56846r829261_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\DataCollection\ Value Name: AllowTelemetry Type: REG_DWORD Value: 0x00000000 (0) (Security) 0x00000001 (1) (Basic)

Fix: F-56796r829262_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Data Collection and Preview Builds >> "Allow Diagnostic Data" to "Enabled" with "Send required diagnostic data" selected in "Options:".

a
Windows Update must not obtain updates from other PCs on the internet.
CM-6 - Low - CCI-000366 - V-253394 - SV-253394r829266_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-CC-000206
Vuln IDs
  • V-253394
Rule IDs
  • SV-253394r829266_rule
Windows 11 allows Windows Update to 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.
Checks: C-56847r829264_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\DeliveryOptimization\ Value Name: DODownloadMode Value Type: REG_DWORD Value: 0x00000000 (0) - No peering (HTTP Only) 0x00000001 (1) - Peers on same NAT only (LAN) 0x00000002 (2) - Local Network / Private group peering (Group) 0x00000063 (99) - Simple download mode, no peering (Simple) 0x00000064 (100) - Bypass mode, Delivery Optimization not used (Bypass) A value of 0x00000003 (3), Internet, is a finding. Standalone systems (configured in Settings): If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\ Value Name: DODownloadMode Value Type: REG_DWORD Value: 0x00000000 (0) - Off 0x00000001 (1) - LAN

Fix: F-56797r829265_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Delivery Optimization >> "Download Mode" to "Enabled" with any option except "Internet" selected. Acceptable selections include: Bypass (100) Group (2) HTTP only (0) LAN (1) Simple (99) .

b
The Microsoft Defender SmartScreen for Explorer must be enabled.
CM-7 - Medium - CCI-000381 - V-253395 - SV-253395r829269_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000210
Vuln IDs
  • V-253395
Rule IDs
  • SV-253395r829269_rule
Microsoft Defender SmartScreen helps protect systems from programs downloaded from the internet that may be malicious. Enabling Microsoft Defender SmartScreen will warn or prevent users from running potentially malicious programs.
Checks: C-56848r829267_chk

This is applicable to unclassified systems, for other systems this is NA. If the following registry values do not exist or are not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: EnableSmartScreen Value Type: REG_DWORD Value: 0x00000001 (1) And Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: ShellSmartScreenLevel Value Type: REG_SZ Value: Block

Fix: F-56798r829268_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Configure Windows Defender SmartScreen" to "Enabled" with "Warn and prevent bypass" selected. Windows 11 includes duplicate policies for this setting. It can also be configured under Computer Configuration >> Administrative Templates >> Windows Components >> Windows Defender SmartScreen >> Explorer.

b
Explorer Data Execution Prevention must be enabled.
SI-16 - Medium - CCI-002824 - V-253396 - SV-253396r829272_rule
RMF Control
SI-16
Severity
Medium
CCI
CCI-002824
Version
WN11-CC-000215
Vuln IDs
  • V-253396
Rule IDs
  • SV-253396r829272_rule
Data Execution Prevention (DEP) 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.
Checks: C-56849r829270_chk

The default behavior is for data execution prevention to be turned on for file explorer. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoDataExecutionPrevention Value Type: REG_DWORD Value: 0 (or if the Value Name does not exist)

Fix: F-56799r829271_fix

The default behavior is for data execution prevention to be turned on for file explorer. To correct this, 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".

a
File Explorer heap termination on corruption must be disabled.
SC-5 - Low - CCI-002385 - V-253397 - SV-253397r829275_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN11-CC-000220
Vuln IDs
  • V-253397
Rule IDs
  • SV-253397r829275_rule
Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.
Checks: C-56850r829273_chk

The default behavior is for File Explorer heap termination on corruption to be enabled. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Explorer\ Value Name: NoHeapTerminationOnCorruption Value Type: REG_DWORD Value: 0x00000000 (0) (or if the Value Name does not exist)

Fix: F-56800r829274_fix

The default behavior is for File Explorer heap termination on corruption to be enabled. To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Turn off heap termination on corruption" to "Not Configured" or "Disabled".

b
File Explorer shell protocol must run in protected mode.
CM-6 - Medium - CCI-000366 - V-253398 - SV-253398r829278_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000225
Vuln IDs
  • V-253398
Rule IDs
  • SV-253398r829278_rule
The shell protocol will limit the set of folders 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.
Checks: C-56851r829276_chk

The default behavior is for shell protected mode to be turned on for file explorer. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\ Value Name: PreXPSP2ShellProtocolBehavior Value Type: REG_DWORD Value: 0 (or if the Value Name does not exist)

Fix: F-56801r829277_fix

The default behavior is for shell protected mode to be turned on for file explorer. To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Turn off shell protocol protected mode" to "Not Configured" or "Disabled".

b
Windows 11 must be configured to disable Windows Game Recording and Broadcasting.
CM-7 - Medium - CCI-000381 - V-253399 - SV-253399r829281_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000252
Vuln IDs
  • V-253399
Rule IDs
  • SV-253399r829281_rule
Windows Game Recording and Broadcasting is intended for use with games; however, it could potentially record screen shots of other applications and expose sensitive data. Disabling the feature will prevent this from occurring.
Checks: C-56852r829279_chk

This is NA for Windows 11 LTSC. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\GameDVR\ Value Name: AllowGameDVR Type: REG_DWORD Value: 0x00000000 (0)

Fix: F-56802r829280_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Game Recording and Broadcasting >> "Enables or disables Windows Game Recording and Broadcasting" to "Disabled".

b
The use of a hardware security device with Windows Hello for Business must be enabled.
CM-6 - Medium - CCI-000366 - V-253400 - SV-253400r829284_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000255
Vuln IDs
  • V-253400
Rule IDs
  • SV-253400r829284_rule
The use of a Trusted Platform Module (TPM) to store keys for Windows Hello for Business provides additional security. Keys stored in the TPM may only be used on that system while keys stored using software are more susceptible to compromise and could be used on other systems.
Checks: C-56853r829282_chk

Virtual desktop implementations currently may not support the use of TPMs. For virtual desktop implementations where the virtual desktop instance is deleted or refreshed upon logoff, this is NA. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\PassportForWork\ Value Name: RequireSecurityDevice Type: REG_DWORD Value: 1

Fix: F-56803r829283_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Hello for Business >> "Use a hardware security device" to "Enabled".

b
Windows 11 must be configured to require a minimum pin length of six characters or greater.
CM-6 - Medium - CCI-000366 - V-253401 - SV-253401r829287_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000260
Vuln IDs
  • V-253401
Rule IDs
  • SV-253401r829287_rule
Windows allows the use of PINs as well as biometrics for authentication without sending a password to a network or website where it could be compromised. Longer minimum PIN lengths increase the available combinations an attacker would have to attempt. Shorter minimum length significantly reduces the strength.
Checks: C-56854r829285_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\PassportForWork\PINComplexity\ Value Name: MinimumPINLength Type: REG_DWORD Value: 6 (or greater)

Fix: F-56804r829286_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> PIN Complexity >> "Minimum PIN length" to "6" or greater.

b
Passwords must not be saved in the Remote Desktop Client.
IA-11 - Medium - CCI-002038 - V-253402 - SV-253402r829290_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN11-CC-000270
Vuln IDs
  • V-253402
Rule IDs
  • SV-253402r829290_rule
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.
Checks: C-56855r829288_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: DisablePasswordSaving Value Type: REG_DWORD Value: 1

Fix: F-56805r829289_fix

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".

b
Local drives must be prevented from sharing with Remote Desktop Session Hosts.
SC-4 - Medium - CCI-001090 - V-253403 - SV-253403r829293_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN11-CC-000275
Vuln IDs
  • V-253403
Rule IDs
  • SV-253403r829293_rule
Preventing users from sharing the local drives on their client computers to Remote Session Hosts that they access helps reduce possible exposure of sensitive data.
Checks: C-56856r829291_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fDisableCdm Value Type: REG_DWORD Value: 1

Fix: F-56806r829292_fix

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".

b
Remote Desktop Services must always prompt a client for passwords upon connection.
IA-11 - Medium - CCI-002038 - V-253404 - SV-253404r829296_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN11-CC-000280
Vuln IDs
  • V-253404
Rule IDs
  • SV-253404r829296_rule
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.
Checks: C-56857r829294_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fPromptForPassword Value Type: REG_DWORD Value: 1

Fix: F-56807r829295_fix

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".

b
The Remote Desktop Session Host must require secure RPC communications.
AC-17 - Medium - CCI-001453 - V-253405 - SV-253405r877394_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-001453
Version
WN11-CC-000285
Vuln IDs
  • V-253405
Rule IDs
  • SV-253405r877394_rule
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 sensitive information.
Checks: C-56858r829297_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fEncryptRPCTraffic Value Type: REG_DWORD Value: 1

Fix: F-56808r829298_fix

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".

b
Remote Desktop Services must be configured with the client connection encryption set to the required level.
AC-17 - Medium - CCI-000068 - V-253406 - SV-253406r877398_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000068
Version
WN11-CC-000290
Vuln IDs
  • V-253406
Rule IDs
  • SV-253406r877398_rule
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.
Checks: C-56859r829300_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MinEncryptionLevel Value Type: REG_DWORD Value: 3

Fix: F-56809r829301_fix

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" and "High Level".

b
Attachments must be prevented from being downloaded from RSS feeds.
CM-6 - Medium - CCI-000366 - V-253407 - SV-253407r829305_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000295
Vuln IDs
  • V-253407
Rule IDs
  • SV-253407r829305_rule
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.
Checks: C-56860r829303_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Internet Explorer\Feeds\ Value Name: DisableEnclosureDownload Value Type: REG_DWORD Value: 1

Fix: F-56810r829304_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> RSS Feeds >> "Prevent downloading of enclosures" to "Enabled".

b
Basic authentication for RSS feeds over HTTP must not be used.
CM-7 - Medium - CCI-000381 - V-253408 - SV-253408r829308_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000300
Vuln IDs
  • V-253408
Rule IDs
  • SV-253408r829308_rule
Basic authentication uses plain text passwords that could be used to compromise a system.
Checks: C-56861r829306_chk

The default behavior is for the Windows RSS platform to not use Basic authentication over HTTP connections. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Internet Explorer\Feeds\ Value Name: AllowBasicAuthInClear Value Type: REG_DWORD Value: 0 (or if the Value Name does not exist)

Fix: F-56811r829307_fix

The default behavior is for the Windows RSS platform to not use Basic authentication over HTTP connections. To correct this, 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".

b
Indexing of encrypted files must be turned off.
CM-7 - Medium - CCI-000381 - V-253409 - SV-253409r829311_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000305
Vuln IDs
  • V-253409
Rule IDs
  • SV-253409r829311_rule
Indexing of encrypted files may expose sensitive data. This setting prevents encrypted files from being indexed.
Checks: C-56862r829309_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Windows Search\ Value Name: AllowIndexingEncryptedStoresOrItems Value Type: REG_DWORD Value: 0

Fix: F-56812r829310_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Search >> "Allow indexing of encrypted files" to "Disabled".

b
Users must be prevented from changing installation options.
CM-11 - Medium - CCI-001812 - V-253410 - SV-253410r829314_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
WN11-CC-000310
Vuln IDs
  • V-253410
Rule IDs
  • SV-253410r829314_rule
Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.
Checks: C-56863r829312_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Installer\ Value Name: EnableUserControl Value Type: REG_DWORD Value: 0

Fix: F-56813r829313_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> "Allow user control over installs" to "Disabled".

c
The Windows Installer feature "Always install with elevated privileges" must be disabled.
CM-11 - High - CCI-001812 - V-253411 - SV-253411r829317_rule
RMF Control
CM-11
Severity
High
CCI
CCI-001812
Version
WN11-CC-000315
Vuln IDs
  • V-253411
Rule IDs
  • SV-253411r829317_rule
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.
Checks: C-56864r829315_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Installer\ Value Name: AlwaysInstallElevated Value Type: REG_DWORD Value: 0

Fix: F-56814r829316_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> "Always install with elevated privileges" to "Disabled".

b
Users must be notified if a web-based program attempts to install software.
CM-6 - Medium - CCI-000366 - V-253412 - SV-253412r829320_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000320
Vuln IDs
  • V-253412
Rule IDs
  • SV-253412r829320_rule
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.
Checks: C-56865r829318_chk

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. If it exists and is configured with a value of "1", this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\Installer\ Value Name: SafeForScripting Value Type: REG_DWORD Value: 0 (or if the Value Name does not exist)

Fix: F-56815r829319_fix

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. To correct this, 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".

b
Automatically signing in the last interactive user after a system-initiated restart must be disabled.
CM-6 - Medium - CCI-000366 - V-253413 - SV-253413r877377_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-CC-000325
Vuln IDs
  • V-253413
Rule IDs
  • SV-253413r877377_rule
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.
Checks: C-56866r829321_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: DisableAutomaticRestartSignOn Value Type: REG_DWORD Value: 1

Fix: F-56816r829322_fix

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".

b
PowerShell script block logging must be enabled on Windows 11.
AU-3 - Medium - CCI-000135 - V-253414 - SV-253414r829326_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000135
Version
WN11-CC-000326
Vuln IDs
  • V-253414
Rule IDs
  • SV-253414r829326_rule
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 signs of suspicious and unexpected behavior. Enabling PowerShell script block logging will record detailed information from the processing of PowerShell commands and scripts. This can provide additional detail when malware has run on a system.
Checks: C-56867r829324_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\PowerShell\ScriptBlockLogging\ Value Name: EnableScriptBlockLogging Value Type: REG_DWORD Value: 1

Fix: F-56817r829325_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows PowerShell >> "Turn on PowerShell Script Block Logging" to "Enabled".

b
PowerShell Transcription must be enabled on Windows 11.
AU-3 - Medium - CCI-000134 - V-253415 - SV-253415r829329_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000134
Version
WN11-CC-000327
Vuln IDs
  • V-253415
Rule IDs
  • SV-253415r829329_rule
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 signs of suspicious and unexpected behavior. Enabling PowerShell Transcription will record detailed information from the processing of PowerShell commands and scripts. This can provide additional detail when malware has run on a system.
Checks: C-56868r829327_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\PowerShell\Transcription\ Value Name: EnableTranscripting Value Type: REG_DWORD Value: 1

Fix: F-56818r829328_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows PowerShell >> "Turn on PowerShell Transcription" to "Enabled". Specify the Transcript output directory to point to a Central Log Server or another secure location to prevent user access.

c
The Windows Remote Management (WinRM) client must not use Basic authentication.
MA-4 - High - CCI-000877 - V-253416 - SV-253416r877395_rule
RMF Control
MA-4
Severity
High
CCI
CCI-000877
Version
WN11-CC-000330
Vuln IDs
  • V-253416
Rule IDs
  • SV-253416r877395_rule
Basic authentication uses plain text passwords that could be used to compromise a system.
Checks: C-56869r829330_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WinRM\Client\ Value Name: AllowBasic Value Type: REG_DWORD Value: 0

Fix: F-56819r829331_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> "Allow Basic authentication" to "Disabled".

b
The Windows Remote Management (WinRM) client must not allow unencrypted traffic.
MA-4 - Medium - CCI-002890 - V-253417 - SV-253417r877382_rule
RMF Control
MA-4
Severity
Medium
CCI
CCI-002890
Version
WN11-CC-000335
Vuln IDs
  • V-253417
Rule IDs
  • SV-253417r877382_rule
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.
Checks: C-56870r829333_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WinRM\Client\ Value Name: AllowUnencryptedTraffic Value Type: REG_DWORD Value: 0

Fix: F-56820r829334_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> "Allow unencrypted traffic" to "Disabled".

c
The Windows Remote Management (WinRM) service must not use Basic authentication.
MA-4 - High - CCI-000877 - V-253418 - SV-253418r877395_rule
RMF Control
MA-4
Severity
High
CCI
CCI-000877
Version
WN11-CC-000345
Vuln IDs
  • V-253418
Rule IDs
  • SV-253418r877395_rule
Basic authentication uses plain text passwords that could be used to compromise a system.
Checks: C-56871r829336_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WinRM\Service\ Value Name: AllowBasic Value Type: REG_DWORD Value: 0

Fix: F-56821r829337_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> "Allow Basic authentication" to "Disabled". Severity Override Guidance: The AO can allow the severity override if they have reviewed the overall protection. This would only be allowed temporarily for implementation as documented and approved. .... Allowing Basic authentication to be used for the sole creation of Office 365 DoD tenants. .... A documented mechanism and or script that can disable Basic authentication once administration completes. .... Use of a Privileged Access Workstation (PAW) and adherence to the Clean Source principle for administration.

b
The Windows Remote Management (WinRM) service must not allow unencrypted traffic.
MA-4 - Medium - CCI-003123 - V-253419 - SV-253419r877381_rule
RMF Control
MA-4
Severity
Medium
CCI
CCI-003123
Version
WN11-CC-000350
Vuln IDs
  • V-253419
Rule IDs
  • SV-253419r877381_rule
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.
Checks: C-56872r829339_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WinRM\Service\ Value Name: AllowUnencryptedTraffic Value Type: REG_DWORD Value: 0

Fix: F-56822r829340_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Service >> "Allow unencrypted traffic" to "Disabled".

b
The Windows Remote Management (WinRM) service must not store RunAs credentials.
IA-11 - Medium - CCI-002038 - V-253420 - SV-253420r829344_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN11-CC-000355
Vuln IDs
  • V-253420
Rule IDs
  • SV-253420r829344_rule
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.
Checks: C-56873r829342_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WinRM\Service\ Value Name: DisableRunAs Value Type: REG_DWORD Value: 1

Fix: F-56823r829343_fix

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".

b
The Windows Remote Management (WinRM) client must not use Digest authentication.
MA-4 - Medium - CCI-000877 - V-253421 - SV-253421r877395_rule
RMF Control
MA-4
Severity
Medium
CCI
CCI-000877
Version
WN11-CC-000360
Vuln IDs
  • V-253421
Rule IDs
  • SV-253421r877395_rule
Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks.
Checks: C-56874r829345_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\WinRM\Client\ Value Name: AllowDigest Value Type: REG_DWORD Value: 0

Fix: F-56824r829346_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Remote Management (WinRM) >> WinRM Client >> "Disallow Digest authentication" to "Enabled".

b
Windows 11 must be configured to prevent Windows apps from being activated by voice while the system is locked.
AC-11 - Medium - CCI-000056 - V-253422 - SV-253422r829350_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000056
Version
WN11-CC-000365
Vuln IDs
  • V-253422
Rule IDs
  • SV-253422r829350_rule
Allowing Windows apps to be activated by voice from the lock screen could allow for unauthorized use. Requiring logon will ensure the apps are only used by authorized personnel.
Checks: C-56875r829348_chk

The setting is NA when the "Allow voice activation" policy is configured to disallow applications to be activated with voice for all users. If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\AppPrivacy\ Value Name: LetAppsActivateWithVoiceAboveLock Type: REG_DWORD Value: 0x00000002 (2) If the following registry value exists and is configured as specified, requirement is NA: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\AppPrivacy\ Value Name: LetAppsActivateWithVoice Type: REG_DWORD Value: 0x00000002 (2)

Fix: F-56825r829349_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> App Privacy >> "Let Windows apps activate with voice while the system is locked" to "Enabled" with Default for all Apps: set to Force Deny. The requirement is NA if the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> App Privacy >> "Let Windows apps activate with voice" is configured to "Enabled" with Default for all Apps: set to Force Deny.

b
The convenience PIN for Windows 11 must be disabled.
CM-7 - Medium - CCI-000381 - V-253423 - SV-253423r840184_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN11-CC-000370
Vuln IDs
  • V-253423
Rule IDs
  • SV-253423r840184_rule
This policy controls whether a domain user can sign in using a convenience PIN to prevent enabling (Password Stuffer).
Checks: C-56876r829351_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\System Value Name: AllowDomainPINLogon Value Type: REG_DWORD Value data: 0

Fix: F-56826r840184_fix

Disable the convenience PIN sign-in. To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> Set "Turn on convenience PIN sign-in" to "Disabled".

b
Windows Ink Workspace must be configured to disallow access above the lock.
AC-11 - Medium - CCI-000060 - V-253424 - SV-253424r829356_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000060
Version
WN11-CC-000385
Vuln IDs
  • V-253424
Rule IDs
  • SV-253424r829356_rule
This action secures Windows Ink, which contains applications and features oriented toward pen computing.
Checks: C-56877r829354_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\WindowsInkWorkspace Value Name: AllowWindowsInkWorkspace Value Type: REG_DWORD Value data: 1

Fix: F-56827r829355_fix

Disable the convenience PIN sign-in. To correct this, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Ink Workspace >> Set "Allow Windows Ink Workspace" to "Enabled and set Options "On, but disallow access above lock".

a
Windows 11 must be configured to prevent users from receiving suggestions for third-party or additional applications.
CM-7 - Low - CCI-000381 - V-253425 - SV-253425r829359_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN11-CC-000390
Vuln IDs
  • V-253425
Rule IDs
  • SV-253425r829359_rule
Windows spotlight features may suggest apps and content from third-party software publishers in addition to Microsoft apps and content.
Checks: C-56878r829357_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \SOFTWARE\Policies\Microsoft\Windows\CloudContent\ Value Name: DisableThirdPartySuggestions Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-56828r829358_fix

Configure the policy value for User Configuration >> Administrative Templates. >> Windows Components >> Cloud Content >> "Do not suggest third-party content in Windows spotlight" to "Enabled".

b
Windows 11 Kernel (Direct Memory Access) DMA Protection must be enabled.
AU-12 - Medium - CCI-000172 - V-253426 - SV-253426r829362_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN11-EP-000310
Vuln IDs
  • V-253426
Rule IDs
  • SV-253426r829362_rule
Kernel DMA Protection to protect PCs against drive-by Direct Memory Access (DMA) attacks using PCI hot plug devices connected to Thunderbolt 3 ports. Drive-by DMA attacks can lead to disclosure of sensitive information residing on a PC, or even injection of malware that allows attackers to bypass the lock screen or control PCs remotely.
Checks: C-56879r829360_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\Kernel DMA Protection Value Name: DeviceEnumerationPolicy Value Type: REG_DWORD Value: 0

Fix: F-56829r829361_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Kernel DMA Protection >> "Enumeration policy for external devices incompatible with Kernel DMA Protection" to "Enabled" with "Enumeration Policy" set to "Block All".

b
The DoD Root CA certificates must be installed in the Trusted Root Store.
IA-5 - Medium - CCI-000185 - V-253427 - SV-253427r922044_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WN11-PK-000005
Vuln IDs
  • V-253427
Rule IDs
  • SV-253427r922044_rule
To ensure secure DoD websites and DoD-signed code are properly validated, the system must trust the DoD Root Certificate Authorities (CAs). The DoD root certificates will ensure that the trust chain is established for server certificates issued from the DoD CAs.
Checks: C-56880r922037_chk

Verify the DoD Root CA certificates are installed as Trusted Root Certification Authorities. The certificates and thumbprints referenced below apply to unclassified systems; refer to PKE documentation for other networks. Run "PowerShell" as an administrator. Execute the following command: Get-ChildItem -Path Cert:Localmachine\root | Where Subject -Like "*DoD*" | FL Subject, Thumbprint, NotAfter If the following certificate "Subject" and "Thumbprint" information is not displayed, this is a finding. Subject: CN=DoD Root CA 3, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: D73CA91102A2204A36459ED32213B467D7CE97FB NotAfter: 12/30/2029 Subject: CN=DoD Root CA 4, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: B8269F25DBD937ECAFD4C35A9838571723F2D026 NotAfter: 7/25/2032 Subject: CN=DoD Root CA 5, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: 4ECB5CC3095670454DA1CBD410FC921F46B8564B NotAfter: 6/14/2041 Subject: CN=DoD Root CA 6 OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: D37ECF61C0B4ED88681EF3630C4E2FC787B37AEF NotAfter: 1/24/2053 Alternately, use the Certificates MMC snap-in: Run "MMC". Select "File", "Add/Remove Snap-in". Select "Certificates", click "Add". Select "Computer account", click "Next". Select "Local computer: (the computer this console is running on)", click "Finish". Click "OK". Expand "Certificates" and navigate to Trusted Root Certification Authorities >> Certificates. For each of the DoD Root CA certificates noted below: Right-click on the certificate and select "Open". Select the "Details" tab. Scroll to the bottom and select "Thumbprint". If the DoD Root CA certificates below are not listed or the value for the "Thumbprint" field is not as noted, this is a finding. DoD Root CA 3 Thumbprint: D73CA91102A2204A36459ED32213B467D7CE97FB Valid to: Sunday, December 30, 2029 DoD Root CA 4 Thumbprint: B8269F25DBD937ECAFD4C35A9838571723F2D026 Valid to: Sunday, July 25, 2032 DoD Root CA 5 Thumbprint: 4ECB5CC3095670454DA1CBD410FC921F46B8564B Valid to: Friday, June 14, 2041 DoD Root CA 6 Thumbprint : D37ECF61C0B4ED88681EF3630C4E2FC787B37AEF Valid to: Friday, January 24, 2053

Fix: F-56830r922038_fix

Install the DoD Root CA certificates. DoD Root CA 3 DoD Root CA 4 DoD Root CA 5 DoD Root CA 6 The InstallRoot tool is available on Cyber Exchange at https://cyber.mil/pki-pke/tools-configuration-files. PKI can be found at https://crl.gds.disa.mil/.

b
The External Root CA certificates must be installed in the Trusted Root Store on unclassified systems.
IA-5 - Medium - CCI-000185 - V-253428 - SV-253428r894331_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WN11-PK-000010
Vuln IDs
  • V-253428
Rule IDs
  • SV-253428r894331_rule
To ensure secure websites protected with External Certificate Authority (ECA) server certificates are properly validated, the system must trust the ECA Root CAs. The ECA root certificates will ensure the trust chain is established for server certificates issued from the External CAs. This requirement only applies to unclassified systems.
Checks: C-56881r890459_chk

Verify the ECA Root CA certificates are installed on unclassified systems as Trusted Root Certification Authorities. Run "PowerShell" as an administrator. Execute the following command: Get-ChildItem -Path Cert:Localmachine\root | Where Subject -Like "*ECA*" | FL Subject, Thumbprint, NotAfter If the following certificate "Subject" and "Thumbprint" information is not displayed, this is a finding. Subject: CN=ECA Root CA 4, OU=ECA, O=U.S. Government, C=US Thumbprint: 73E8BB08E337D6A5A6AEF90CFFDD97D9176CB582 NotAfter: 12/30/2029 Alternately use the Certificates MMC snap-in: Run "MMC". Select "File", "Add/Remove Snap-in". Select "Certificates", click "Add". Select "Computer account", click "Next". Select "Local computer: (the computer this console is running on)", click "Finish". Click "OK". Expand "Certificates" and navigate to Trusted Root Certification Authorities >> Certificates. For each of the ECA Root CA certificates noted below: Right-click on the certificate and select "Open". Select the "Details" tab. Scroll to the bottom and select "Thumbprint". If the ECA Root CA certificates below are not listed or the value for the "Thumbprint" field is not as noted, this is a finding. ECA Root CA 4 Thumbprint: 73E8BB08E337D6A5A6AEF90CFFDD97D9176CB582 Valid to: Sunday, December 30, 2029

Fix: F-56831r890460_fix

Install the ECA Root CA certificates on unclassified systems. ECA Root CA 4 The InstallRoot tool is available on Cyber Exchange at https://cyber.mil/pki-pke/tools-configuration-files. PKI can be found at https://crl.gds.disa.mil/.

b
The DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
SC-23 - Medium - CCI-002470 - V-253429 - SV-253429r894332_rule
RMF Control
SC-23
Severity
Medium
CCI
CCI-002470
Version
WN11-PK-000015
Vuln IDs
  • V-253429
Rule IDs
  • SV-253429r894332_rule
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.
Checks: C-56882r890462_chk

Verify the DoD Interoperability cross-certificates are installed on unclassified systems as Untrusted Certificates. Run "PowerShell" as an administrator. Execute the following command: Get-ChildItem -Path Cert:Localmachine\disallowed | Where {$_.Issuer -Like "*DoD Interoperability*" -and $_.Subject -Like "*DoD*"} | FL Subject, Issuer, Thumbprint, NotAfter If the following certificate "Subject", "Issuer", and "Thumbprint" information is not displayed, this is a finding. Subject: CN=DoD Root CA 3, OU=PKI, OU=DoD, O=U.S. Government, C=US Issuer: CN=DoD Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: 49CBE933151872E17C8EAE7F0ABA97FB610F6477 NotAfter: 11/16/2024 Subject: CN=DoD Root CA 3, OU=PKI, OU=DoD, O=U.S. Government, C=US Issuer: CN=DoD Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: AC06108CA348CC03B53795C64BF84403C1DBD341 NotAfter: 1/22/2022 Alternately, use the Certificates MMC snap-in: Run "MMC". Select "File", "Add/Remove Snap-in". Select "Certificates", click "Add". Select "Computer account", click "Next". Select "Local computer: (the computer this console is running on)", click "Finish". Click "OK". Expand "Certificates" and navigate to Untrusted Certificates >> Certificates. For each certificate with "DoD Root CA...." under "Issued To" and "DoD Interoperability Root CA...." under "Issued By": Right-click on the certificate and select "Open". Select the "Details" tab. Scroll to the bottom and select "Thumbprint". If the certificates below are not listed or the value for the "Thumbprint" field is not as noted, this is a finding. Issued To: DoD Root CA 3 Issued By: Interoperability Root CA 2 Thumbprint : 49CBE933151872E17C8EAE7F0ABA97FB610F6477 Valid to: Saturday, November 16, 2024

Fix: F-56832r890463_fix

Install the DoD Interoperability Root CA cross-certificates on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 3 - DoD Interoperability Root CA 2 - 49CBE933151872E17C8EAE7F0ABA97FB610F6477 The certificates can be installed using the InstallRoot tool. The tool and user guide are 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/.

b
The US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
SC-23 - Medium - CCI-002470 - V-253430 - SV-253430r890467_rule
RMF Control
SC-23
Severity
Medium
CCI
CCI-002470
Version
WN11-PK-000020
Vuln IDs
  • V-253430
Rule IDs
  • SV-253430r890467_rule
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.
Checks: C-56883r890465_chk

Verify the US DoD CCEB Interoperability Root CA cross-certificate is installed on unclassified systems as an Untrusted Certificate. Run "PowerShell" as an administrator. Execute the following command: Get-ChildItem -Path Cert:Localmachine\disallowed | Where Issuer -Like "*CCEB Interoperability*" | FL Subject, Issuer, Thumbprint, NotAfter If the following certificate "Subject", "Issuer", and "Thumbprint" information is not displayed, this is a finding. Subject: CN=DoD Root CA 3, OU=PKI, OU=DoD, O=U.S. Government, C=US Issuer: CN=US DoD CCEB Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: 9B74964506C7ED9138070D08D5F8B969866560C8 NotAfter: 7/18/2025 9:56:22 A Alternately, use the Certificates MMC snap-in: Run "MMC". Select "File", "Add/Remove Snap-in". Select "Certificates", click "Add". Select "Computer account", click "Next". Select "Local computer: (the computer this console is running on)", click "Finish". Click "OK". Expand "Certificates" and navigate to Untrusted Certificates >> Certificates. For each certificate with "US DoD CCEB Interoperability Root CA..." under "Issued By": Right-click on the certificate and select "Open". Select the "Details" tab. Scroll to the bottom and select "Thumbprint". If the certificate below is not listed or the value for the "Thumbprint" field is not as noted, this is a finding. Subject: CN=DoD Root CA 3, OU=PKI, OU=DoD, O=U.S. Government, C=US Issuer: CN=US DoD CCEB Interoperability Root CA 2, OU=PKI, OU=DoD, O=U.S. Government, C=US Thumbprint: Thumbprint: 9B74964506C7ED9138070D08D5F8B969866560C8 NotAfter: 7/18/2025 9:56:22 AM

Fix: F-56833r890466_fix

Install the US DoD CCEB Interoperability Root CA cross-certificate on unclassified systems. Issued To - Issued By - Thumbprint 9B74964506C7ED9138070D08D5F8B969866560C8 NotAfter: 7/18/2025 9:56:22 AM The certificates can be installed using the InstallRoot tool. The tool and user guide are 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/.

b
Default permissions for the HKEY_LOCAL_MACHINE registry hive must be maintained.
AC-6 - Medium - CCI-002235 - V-253431 - SV-253431r877392_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002235
Version
WN11-RG-000005
Vuln IDs
  • V-253431
Rule IDs
  • SV-253431r877392_rule
The registry is integral to the function, security, and stability of the Windows system. Changing the system's registry permissions allows the possibility of unauthorized and anonymous modification to the operating system.
Checks: C-56884r829375_chk

Verify the default registry permissions for the keys note below of the HKEY_LOCAL_MACHINE hive. If any non-privileged groups such as Everyone, Users or Authenticated Users have greater than Read permission, this is a finding. Run "Regedit". Right click on the registry areas noted below. Select "Permissions..." and the "Advanced" button. HKEY_LOCAL_MACHINE\SECURITY Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to SYSTEM - Full Control - This key and subkeys Administrators - Special - This key and subkeys HKEY_LOCAL_MACHINE\SOFTWARE Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to Users - Read - This key and subkeys Administrators - Full Control - This key and subkeys SYSTEM - Full Control - This key and subkeys CREATOR OWNER - Full Control - This key and subkeys ALL APPLICATION PACKAGES - Read - This key and subkeys HKEY_LOCAL_MACHINE\SYSTEM Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to Users - Read - This key and subkeys Administrators - Full Control - This key and subkeys SYSTEM - Full Control - This key and subkeys CREATOR OWNER - Full Control - This key and subkeys ALL APPLICATION PACKAGES - Read - This key and subkeys Other subkeys under the noted keys may also be sampled. There may be some instances where non-privileged groups have greater than read permission. Microsoft has given Read permission to the SOFTWARE and SYSTEM registry keys in later versions of Windows 11 to the following SID, this is currently not a finding. S-1-15-3-1024-1065365936-1281604716-3511738428-1654721687-432734479-3232135806-4053264122-3456934681 If the defaults have not been changed, these are not a finding.

Fix: F-56834r829376_fix

Maintain the default permissions for the HKEY_LOCAL_MACHINE registry hive. The default permissions of the higher level keys are noted below. HKEY_LOCAL_MACHINE\SECURITY Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to SYSTEM - Full Control - This key and subkeys Administrators - Special - This key and subkeys HKEY_LOCAL_MACHINE\SOFTWARE Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to Users - Read - This key and subkeys Administrators - Full Control - This key and subkeys SYSTEM - Full Control - This key and subkeys CREATOR OWNER - Full Control - This key and subkeys ALL APPLICATION PACKAGES - Read - This key and subkeys HKEY_LOCAL_MACHINE\SYSTEM Type - "Allow" for all Inherited from - "None" for all Principal - Access - Applies to Users - Read - This key and subkeys Administrators - Full Control - This key and subkeys SYSTEM - Full Control - This key and subkeys CREATOR OWNER - Full Control - This key and subkeys ALL APPLICATION PACKAGES - Read - This key and subkeys Microsoft has also given read permission to the SOFTWARE and SYSTEM registry keys in later versions of Windows 11 to the following SID. S-1-15-3-1024-1065365936-1281604716-3511738428-1654721687-432734479-3232135806-4053264122-3456934681

b
The built-in administrator account must be disabled.
IA-2 - Medium - CCI-000764 - V-253432 - SV-253432r829380_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
WN11-SO-000005
Vuln IDs
  • V-253432
Rule IDs
  • SV-253432r829380_rule
The built-in administrator account is a well-known account subject to attack. It also provides no accountability to individual administrators on a system. It must be disabled to prevent its use.
Checks: C-56885r829378_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options. If the value for "Accounts: Administrator account status" is not set to "Disabled", this is a finding.

Fix: F-56835r829379_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Accounts: Administrator account status" to "Disabled".

b
The built-in guest account must be disabled.
IA-8 - Medium - CCI-000804 - V-253433 - SV-253433r829383_rule
RMF Control
IA-8
Severity
Medium
CCI
CCI-000804
Version
WN11-SO-000010
Vuln IDs
  • V-253433
Rule IDs
  • SV-253433r829383_rule
A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned.
Checks: C-56886r829381_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options. If the value for "Accounts: Guest account status" is not set to "Disabled", this is a finding.

Fix: F-56836r829382_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Accounts: Guest account status" to "Disabled".

b
Local accounts with blank passwords must be restricted to prevent access from the network.
CM-6 - Medium - CCI-000366 - V-253434 - SV-253434r829386_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-SO-000015
Vuln IDs
  • V-253434
Rule IDs
  • SV-253434r829386_rule
An account without a password can allow unauthorized access to a system as only the username would be required. Password policies must prevent accounts with blank passwords from existing on a system. However, if a local account with a blank password did exist, enabling this setting will prevent network access, limiting the account to local console logon only.
Checks: C-56887r829384_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: LimitBlankPasswordUse Value Type: REG_DWORD Value: 1

Fix: F-56837r829385_fix

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".

b
The built-in administrator account must be renamed.
CM-6 - Medium - CCI-000366 - V-253435 - SV-253435r829389_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-SO-000020
Vuln IDs
  • V-253435
Rule IDs
  • SV-253435r829389_rule
The built-in administrator account is a well-known account subject to attack. Renaming this account to an unidentified name improves the protection of this account and the system.
Checks: C-56888r829387_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options. If the value for "Accounts: Rename administrator account" is set to "Administrator", this is a finding.

Fix: F-56838r829388_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Accounts: Rename administrator account" to a name other than "Administrator".

b
The built-in guest account must be renamed.
CM-6 - Medium - CCI-000366 - V-253436 - SV-253436r829392_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-SO-000025
Vuln IDs
  • V-253436
Rule IDs
  • SV-253436r829392_rule
The built-in guest account is a well-known user account on all Windows systems and, as initially installed, does not require a password. This can allow access to system resources by unauthorized users. Renaming this account to an unidentified name improves the protection of this account and the system.
Checks: C-56889r829390_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options. If the value for "Accounts: Rename guest account" is set to "Guest", this is a finding.

Fix: F-56839r829391_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Accounts: Rename guest account" to a name other than "Guest".

b
Audit policy using subcategories must be enabled.
AU-12 - Medium - CCI-000169 - V-253437 - SV-253437r829395_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000169
Version
WN11-SO-000030
Vuln IDs
  • V-253437
Rule IDs
  • SV-253437r829395_rule
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 signs of suspicious and unexpected behavior. This setting allows administrators to enable more precise auditing capabilities.
Checks: C-56890r829393_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: SCENoApplyLegacyAuditPolicy Value Type: REG_DWORD Value: 1

Fix: F-56840r829394_fix

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".

b
Outgoing secure channel traffic must be encrypted or signed.
SC-8 - Medium - CCI-002418 - V-253438 - SV-253438r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-SO-000035
Vuln IDs
  • V-253438
Rule IDs
  • SV-253438r916422_rule
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.
Checks: C-56891r829396_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireSignOrSeal Value Type: REG_DWORD Value: 1

Fix: F-56841r829397_fix

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".

b
Outgoing secure channel traffic must be encrypted.
SC-8 - Medium - CCI-002418 - V-253439 - SV-253439r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-SO-000040
Vuln IDs
  • V-253439
Rule IDs
  • SV-253439r916422_rule
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.
Checks: C-56892r829399_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SealSecureChannel Value Type: REG_DWORD Value: 1

Fix: F-56842r829400_fix

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".

b
Outgoing secure channel traffic must be signed.
SC-8 - Medium - CCI-002418 - V-253440 - SV-253440r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-SO-000045
Vuln IDs
  • V-253440
Rule IDs
  • SV-253440r916422_rule
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.
Checks: C-56893r829402_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SignSecureChannel Value Type: REG_DWORD Value: 1

Fix: F-56843r829403_fix

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".

a
The computer account password must not be prevented from being reset.
CM-6 - Low - CCI-000366 - V-253441 - SV-253441r829407_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-SO-000050
Vuln IDs
  • V-253441
Rule IDs
  • SV-253441r829407_rule
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.
Checks: C-56894r829405_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: DisablePasswordChange Value Type: REG_DWORD Value: 0

Fix: F-56844r829406_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Disable machine account password changes" to "Disabled".

a
The maximum age for machine account passwords must be configured to 30 days or less.
CM-6 - Low - CCI-000366 - V-253442 - SV-253442r829410_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-SO-000055
Vuln IDs
  • V-253442
Rule IDs
  • SV-253442r829410_rule
Computer account passwords are changed automatically on a regular basis. This setting controls the maximum password age that a machine account may have. This setting must be set to no more than 30 days, ensuring the machine changes its password monthly.
Checks: C-56895r829408_chk

(remove)This is the default configuration for this setting (30 days). If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: MaximumPasswordAge Value Type: REG_DWORD Value: 0x0000001e (30) (or less, excluding 0)

Fix: F-56845r829409_fix

This is the default configuration for this setting (30 days). Configure 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).

b
The system must be configured to require a strong session key.
SC-8 - Medium - CCI-002418 - V-253443 - SV-253443r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-SO-000060
Vuln IDs
  • V-253443
Rule IDs
  • SV-253443r916422_rule
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
Checks: C-56896r829411_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: RequireStrongKey Value Type: REG_DWORD Value: 1 Warning: This setting may prevent a system from being joined to a domain if not configured consistently between systems.

Fix: F-56846r829412_fix

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".

b
The machine inactivity limit must be set to 15 minutes, locking the system with the screensaver.
SC-10 - Medium - CCI-001133 - V-253444 - SV-253444r840185_rule
RMF Control
SC-10
Severity
Medium
CCI
CCI-001133
Version
WN11-SO-000070
Vuln IDs
  • V-253444
Rule IDs
  • SV-253444r840185_rule
Unattended systems are susceptible to unauthorized use and must be locked when unattended. The screen saver must 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. Satisfies: SRG-OS-000279-GPOS-00109, SRG-OS-000163-GPOS-00072
Checks: C-56897r829414_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: InactivityTimeoutSecs Value Type: REG_DWORD Value: 0x00000384 (900) (or less, excluding "0" which is effectively disabled)

Fix: F-56847r829415_fix

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.

b
The required legal notice must be configured to display before console logon.
AC-7 - Medium - CCI-000044 - V-253445 - SV-253445r840186_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN11-SO-000075
Vuln IDs
  • V-253445
Rule IDs
  • SV-253445r840186_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources. Satisfies: SRG-OS-000024-GPOS-00007, SRG-OS-000228-GPOS-00088, SRG-OS-000024-GPOS-00007
Checks: C-56898r829417_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: LegalNoticeText Value Type: REG_SZ Value: You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details.

Fix: F-56848r829418_fix

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. You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details.

a
The Windows message title for the legal notice must be configured.
AC-8 - Low - CCI-000048 - V-253446 - SV-253446r829422_rule
RMF Control
AC-8
Severity
Low
CCI
CCI-000048
Version
WN11-SO-000080
Vuln IDs
  • V-253446
Rule IDs
  • SV-253446r829422_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
Checks: C-56899r829420_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ Value Name: LegalNoticeCaption Value Type: REG_SZ Value: See message title above "DoD Notice and Consent Banner", "US Department of Defense Warning Statement" or a site-defined equivalent, this is a finding. If a site-defined title is used, it can in no case contravene or modify the language of the banner text required in WN11-SO-000075.

Fix: F-56849r829421_fix

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 a site-defined equivalent. If a site-defined title is used, it can in no case contravene or modify the language of the banner text required in WN11-SO-000075.

a
Caching of logon credentials must be limited.
CM-6 - Low - CCI-000366 - V-253447 - SV-253447r829425_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN11-SO-000085
Vuln IDs
  • V-253447
Rule IDs
  • SV-253447r829425_rule
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 password to a domain user account using a password-cracking program and gain access to the domain.
Checks: C-56900r829423_chk

This is the default configuration for this setting (10 logons to cache). If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: CachedLogonsCount Value Type: REG_SZ Value: 10 (or less) This setting only applies to domain-joined systems, however, it is configured by default on all systems.

Fix: F-56850r829424_fix

This is the default configuration for this setting (10 logons to cache). 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 "10" logons or less. This setting only applies to domain-joined systems, however, it is configured by default on all systems.

b
The Smart Card removal option must be configured to Force Logoff or Lock Workstation.
CM-6 - Medium - CCI-000366 - V-253448 - SV-253448r829428_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-SO-000095
Vuln IDs
  • V-253448
Rule IDs
  • SV-253448r829428_rule
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.
Checks: C-56901r829426_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ Value Name: SCRemoveOption Value Type: REG_SZ Value: 1 (Lock Workstation) or 2 (Force Logoff) This can be left not configured or set to "No action" on workstations with the following conditions. This must be documented with the ISSO. -The setting cannot be configured due to mission needs, or because it interferes with applications. -Policy must be in place that users manually lock workstations when leaving them unattended. -The screen saver is properly configured to lock as required.

Fix: F-56851r829427_fix

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".

b
The Windows SMB client must be configured to always perform SMB packet signing.
SC-8 - Medium - CCI-002418 - V-253449 - SV-253449r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-SO-000100
Vuln IDs
  • V-253449
Rule IDs
  • SV-253449r916422_rule
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.
Checks: C-56902r829429_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: RequireSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-56852r829430_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Microsoft network client: Digitally sign communications (always)" to "Enabled".

b
Unencrypted passwords must not be sent to third-party SMB Servers.
IA-5 - Medium - CCI-000197 - V-253450 - SV-253450r877396_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000197
Version
WN11-SO-000110
Vuln IDs
  • V-253450
Rule IDs
  • SV-253450r877396_rule
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 see if there is a way to support encrypted password authentication.
Checks: C-56903r829432_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\ Value Name: EnablePlainTextPassword Value Type: REG_DWORD Value: 0

Fix: F-56853r829433_fix

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".

b
The Windows SMB server must be configured to always perform SMB packet signing.
SC-8 - Medium - CCI-002418 - V-253451 - SV-253451r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN11-SO-000120
Vuln IDs
  • V-253451
Rule IDs
  • SV-253451r916422_rule
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.
Checks: C-56904r829435_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RequireSecuritySignature Value Type: REG_DWORD Value: 1

Fix: F-56854r829436_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Microsoft network server: Digitally sign communications (always)" to "Enabled".

c
Anonymous SID/Name translation must not be allowed.
CM-6 - High - CCI-000366 - V-253452 - SV-253452r829440_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN11-SO-000140
Vuln IDs
  • V-253452
Rule IDs
  • SV-253452r829440_rule
Allowing anonymous SID/Name translation can provide sensitive information for accessing a system. Only authorized users must be able to perform such translations.
Checks: C-56905r829438_chk

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options. If the value for "Network access: Allow anonymous SID/Name translation" is not set to "Disabled", this is a finding.

Fix: F-56855r829439_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Allow anonymous SID/Name translation" to "Disabled".

c
Anonymous enumeration of SAM accounts must not be allowed.
CM-6 - High - CCI-000366 - V-253453 - SV-253453r829443_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN11-SO-000145
Vuln IDs
  • V-253453
Rule IDs
  • SV-253453r829443_rule
Anonymous enumeration of SAM accounts allows anonymous log on users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system.
Checks: C-56906r829441_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: RestrictAnonymousSAM Value Type: REG_DWORD Value: 1

Fix: F-56856r829442_fix

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".

c
Anonymous enumeration of shares must be restricted.
SC-4 - High - CCI-001090 - V-253454 - SV-253454r829446_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN11-SO-000150
Vuln IDs
  • V-253454
Rule IDs
  • SV-253454r829446_rule
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.
Checks: C-56907r829444_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: RestrictAnonymous Value Type: REG_DWORD Value: 1

Fix: F-56857r829445_fix

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".

b
The system must be configured to prevent anonymous users from having the same rights as the Everyone group.
CM-6 - Medium - CCI-000366 - V-253455 - SV-253455r829449_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-SO-000160
Vuln IDs
  • V-253455
Rule IDs
  • SV-253455r829449_rule
Access by anonymous users must be restricted. If this setting is enabled, then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.
Checks: C-56908r829447_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: EveryoneIncludesAnonymous Value Type: REG_DWORD Value: 0

Fix: F-56858r829448_fix

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".

c
Anonymous access to Named Pipes and Shares must be restricted.
SC-4 - High - CCI-001090 - V-253456 - SV-253456r829452_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN11-SO-000165
Vuln IDs
  • V-253456
Rule IDs
  • SV-253456r829452_rule
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.
Checks: C-56909r829450_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Services\LanManServer\Parameters\ Value Name: RestrictNullSessAccess Value Type: REG_DWORD Value: 1

Fix: F-56859r829451_fix

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".

b
Remote calls to the Security Account Manager (SAM) must be restricted to Administrators.
AC-6 - Medium - CCI-002235 - V-253457 - SV-253457r877392_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002235
Version
WN11-SO-000167
Vuln IDs
  • V-253457
Rule IDs
  • SV-253457r877392_rule
The Windows Security Account Manager (SAM) stores users' passwords. Restricting remote rpc connections to the SAM to Administrators helps protect those credentials.
Checks: C-56910r829453_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\ Value Name: RestrictRemoteSAM Value Type: REG_SZ Value: O:BAG:BAD:(A;;RC;;;BA)

Fix: F-56860r829454_fix

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". Select "Edit Security" to configure the "Security descriptor:". Add "Administrators" in "Group or user names:" if it is not already listed (this is the default). Select "Administrators" in "Group or user names:". Select "Allow" for "Remote Access" in "Permissions for "Administrators". Click "OK". The "Security descriptor:" must be populated with "O:BAG:BAD:(A;;RC;;;BA) for the policy to be enforced.

b
NTLM must be prevented from falling back to a Null session.
CM-6 - Medium - CCI-000366 - V-253458 - SV-253458r829458_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN11-SO-000180
Vuln IDs
  • V-253458
Rule IDs
  • SV-253458r829458_rule
NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.
Checks: C-56911r829456_chk

If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\LSA\MSV1_0\ Value Name: allownullsessionfallback Value Type: REG_DWORD Value: 0

Fix: F-56861r829457_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Allow LocalSystem NULL session fallback" to "Disabled".

b
PKU2U authentication using online identities must be prevented.
CM-6 - Medium - CCI-000366 -