Microsoft Windows 10 Security Technical Implementation Guide

  • Version/Release: V2R8
  • 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 10 Enterprise Edition 64-bit version.
CM-6 - Medium - CCI-000366 - V-220697 - SV-220697r857178_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000005
Vuln IDs
  • V-220697
  • V-63319
Rule IDs
  • SV-220697r857178_rule
  • SV-77809
Features such as Credential Guard use virtualization-based security to protect information that could be used in credential theft attacks if compromised. A number of system requirements must be met for Credential Guard to be configured and enabled properly. Virtualization-based security and Credential Guard are only available with Windows 10 Enterprise 64-bit version.
Checks: C-22412r857177_chk

Verify domain-joined systems are using Windows 10 Enterprise Edition 64-bit version. For standalone or nondomain-joined systems, this is NA. Open "Settings". Select "System", then "About". If "Edition" is not "Windows 10 Enterprise", this is a finding. If "System type" is not "64-bit operating system…", this is a finding.

Fix: F-22401r554577_fix

Use Windows 10 Enterprise 64-bit version for domain-joined systems.

b
Windows 10 domain-joined systems must have a Trusted Platform Module (TPM) enabled and ready for use.
CM-6 - Medium - CCI-000366 - V-220698 - SV-220698r857181_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000010
Vuln IDs
  • V-220698
  • V-63323
Rule IDs
  • SV-220698r857181_rule
  • SV-77813
Credential Guard uses virtualization-based security to protect information that could be used in credential theft attacks if compromised. A number of system requirements must be met 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-22413r857179_chk

Verify domain-joined systems have a TPM enabled and ready for use. For standalone or nondomain-joined 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 or 1.2 If a TPM is not found or is not ready for use, this is a finding.

Fix: F-22402r857180_fix

For standalone or nondomain-joined systems, this is NA. Virtualization-based security, including Credential Guard, currently cannot be implemented in 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 have a Trusted Platform Module (TPM) that is configured for use. (Versions 2.0 or 1.2 support Credential Guard.) The TPM must be enabled in the firmware. Run "tpm.msc" for configuration options in Windows.

b
Windows 10 systems must have Unified Extensible Firmware Interface (UEFI) firmware and be configured to run in UEFI mode, not Legacy BIOS.
CM-6 - Medium - CCI-000366 - V-220699 - SV-220699r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000015
Vuln IDs
  • V-220699
  • V-77083
Rule IDs
  • SV-220699r569187_rule
  • SV-91779
UEFI provides additional security features in comparison to legacy BIOS firmware, including Secure Boot. UEFI is required to support additional security features in Windows 10, 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-22414r642137_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-22403r554583_fix

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

a
Secure Boot must be enabled on Windows 10 systems.
CM-6 - Low - CCI-000366 - V-220700 - SV-220700r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-00-000020
Vuln IDs
  • V-220700
  • V-77085
Rule IDs
  • SV-220700r569187_rule
  • SV-91781
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 10, including Virtualization Based Security and Credential Guard. If Secure Boot is turned off, these security features will not function.
Checks: C-22415r554585_chk

Some older systems may not have UEFI firmware. This is currently a CAT III; it will be raised in severity at a future date when broad support of Windows 10 hardware and firmware requirements are expected to be met. Devices that have UEFI firmware must have Secure Boot enabled. 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 finding.

Fix: F-22404r554586_fix

Enable Secure Boot in the system firmware.

b
Windows 10 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-220701 - SV-220701r793197_rule
RMF Control
SI-2
Severity
Medium
CCI
CCI-001233
Version
WN10-00-000025
Vuln IDs
  • V-220701
  • V-63343
Rule IDs
  • SV-220701r793197_rule
  • SV-77833
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-22416r641864_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-22405r641865_fix

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

b
Windows 10 information systems must use BitLocker to encrypt all disks to protect the confidentiality and integrity of all information at rest.
SC-28 - Medium - CCI-001199 - V-220702 - SV-220702r859296_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-001199
Version
WN10-00-000030
Vuln IDs
  • V-220702
  • V-63337
Rule IDs
  • SV-220702r859296_rule
  • SV-77827
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-22417r819650_chk

Verify all Windows 10 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 Azure Virtual Desktop (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 (WN10-00-000031 and WN10-00-000032).

Fix: F-22406r554592_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 (WN10-00-000031 and WN10-00-000032).

b
Windows 10 systems must use a BitLocker PIN for pre-boot authentication.
SC-28 - Medium - CCI-001199 - V-220703 - SV-220703r859157_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-001199
Version
WN10-00-000031
Vuln IDs
  • V-220703
  • V-94859
Rule IDs
  • SV-220703r859157_rule
  • SV-104689
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-22418r819652_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 Azure Virtual Desktop (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. Refer to the article at the link below for information about network unlock. https://docs.microsoft.com/en-us/windows/security/information-protection/bitlocker/bitlocker-how-to-enable-network-unlock

Fix: F-22407r554595_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 10 systems must use a BitLocker PIN with a minimum length of six digits for pre-boot authentication.
SC-28 - Medium - CCI-001199 - V-220704 - SV-220704r859297_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-001199
Version
WN10-00-000032
Vuln IDs
  • V-220704
  • V-94861
Rule IDs
  • SV-220704r859297_rule
  • SV-104691
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-22419r819654_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 Azure Virtual Desktop (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-22408r554598_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-220705 - SV-220705r890420_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-001774
Version
WN10-00-000035
Vuln IDs
  • V-220705
  • V-63345
Rule IDs
  • SV-220705r890420_rule
  • SV-77835
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-22420r890418_chk

This is applicable to unclassified systems; for other systems, this is Not Applicable. 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 10 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-22409r890419_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 10 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 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 10 systems must be maintained at a supported servicing level.
CM-6 - High - CCI-000366 - V-220706 - SV-220706r921980_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN10-00-000040
Vuln IDs
  • V-220706
  • V-63349
Rule IDs
  • SV-220706r921980_rule
  • SV-77839
Windows 10 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 semiannual 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-22421r921978_chk

Run "winver.exe". If the "About Windows" dialog box does not display the following or greater, this is a finding: "Microsoft Windows Version 21H2 (OS Build 220xx.x)" Note: Microsoft has extended support for previous versions, providing critical and important updates for Windows 10 Enterprise. Microsoft scheduled end-of-support dates for current Semi-Annual Channel versions: v22H2 - 14 Oct 2025 v21H2 - 13 Jun 2024 No preview versions will be used in a production environment. Special-purpose systems using the Long-Term Servicing Branch\Channel (LTSC\B) may be at the following versions, which is not a finding: v1507 (Build 10240) v1607 (Build 14393) v1809 (Build 17763) v21H2 (Build 19044)

Fix: F-22410r921979_fix

Update systems on the Semi-Annual Channel to "Microsoft Windows Version 22H2 (OS Build 190xx.x)" or greater. It is recommended systems be upgraded to the most recently released version. Special-purpose systems using the LTSC\B may be at the following versions: v1507 (Build 10240) v1607 (Build 14393) v1809 (Build 17763) v21H2 (Build 19044)

c
The Windows 10 system must use an anti-virus program.
CM-6 - High - CCI-000366 - V-220707 - SV-220707r793194_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN10-00-000045
Vuln IDs
  • V-220707
  • V-63351
Rule IDs
  • SV-220707r793194_rule
  • SV-77841
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-22422r793192_chk

Verify an anti-virus solution is installed on the system and in use. The anti-virus solution may be bundled with an approved Endpoint Security Solution. Verify if Windows Defender 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 anti-virus solution installed on the system, this is a finding.

Fix: F-22411r793193_fix

If no anti-virus software is on the system and in use, install Windows Defender or a third-party anti-virus solution.

c
Local volumes must be formatted using NTFS.
AC-3 - High - CCI-000213 - V-220708 - SV-220708r569187_rule
RMF Control
AC-3
Severity
High
CCI
CCI-000213
Version
WN10-00-000050
Vuln IDs
  • V-220708
  • V-63353
Rule IDs
  • SV-220708r569187_rule
  • SV-77843
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-22423r554609_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-22412r554610_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-220709 - SV-220709r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000055
Vuln IDs
  • V-220709
  • V-63355
Rule IDs
  • SV-220709r569187_rule
  • SV-77845
Allowing other operating systems to run on a secure system may allow security to be circumvented.
Checks: C-22424r554612_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 10, this is a finding.

Fix: F-22413r554613_fix

Ensure Windows 10 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-220710 - SV-220710r569187_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN10-00-000060
Vuln IDs
  • V-220710
  • V-63357
Rule IDs
  • SV-220710r569187_rule
  • SV-77847
Shares which provide network access, should not typically 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-22425r554615_chk

Non system-created shares should not typically 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-22414r554616_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.
IA-4 - Low - CCI-000795 - V-220711 - SV-220711r569187_rule
RMF Control
IA-4
Severity
Low
CCI
CCI-000795
Version
WN10-00-000065
Vuln IDs
  • V-220711
  • V-63359
Rule IDs
  • SV-220711r569187_rule
  • SV-77849
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.
Checks: C-22426r554618_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-22415r554619_fix

Regularly 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-6 - High - CCI-002235 - V-220712 - SV-220712r877392_rule
RMF Control
AC-6
Severity
High
CCI
CCI-002235
Version
WN10-00-000070
Vuln IDs
  • V-220712
  • V-63361
Rule IDs
  • SV-220712r877392_rule
  • SV-77851
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-22427r554621_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-22416r554622_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-220713 - SV-220713r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000075
Vuln IDs
  • V-220713
  • V-63363
Rule IDs
  • SV-220713r569187_rule
  • SV-77853
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-22428r554624_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-22417r554625_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 10 systems.
CM-7 - Medium - CCI-000381 - V-220714 - SV-220714r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000080
Vuln IDs
  • V-220714
  • V-63365
Rule IDs
  • SV-220714r569187_rule
  • SV-77855
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 10; however, it is not the full Hyper-V installation.
Checks: C-22429r554627_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 in to 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-22418r554628_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-220715 - SV-220715r890423_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-00-000085
Vuln IDs
  • V-220715
  • V-63367
Rule IDs
  • SV-220715r890423_rule
  • SV-77857
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-22430r890421_chk

For standalone or nondomain-joined systems, this is Not Applicable. 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. 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 10 version.

Fix: F-22419r890422_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-220716 - SV-220716r569187_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
WN10-00-000090
Vuln IDs
  • V-220716
  • V-63371
Rule IDs
  • SV-220716r569187_rule
  • SV-77861
Passwords that do not expire increase exposure with a greater probability of being discovered or cracked.
Checks: C-22431r554633_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-22420r554634_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-220717 - SV-220717r922055_rule
RMF Control
AC-3
Severity
Medium
CCI
CCI-002165
Version
WN10-00-000095
Vuln IDs
  • V-220717
  • V-63373
Rule IDs
  • SV-220717r922055_rule
  • SV-77863
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-22432r921917_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" (WN10-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. Nonprivileged 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:\S-1-15-3-65536-1888954469-739942743-1668119174-2468466756-4239452838-1296943325-355587736-700089176:(S,RD,X,RA) 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-22421r554637_fix

Maintain the default file system permissions and configure the Security Option: "Network access: Let everyone permissions apply to anonymous users" to "Disabled" (WN10-SO-000160).

c
Internet Information System (IIS) or its subcomponents must not be installed on a workstation.
CM-7 - High - CCI-000381 - V-220718 - SV-220718r569187_rule
RMF Control
CM-7
Severity
High
CCI
CCI-000381
Version
WN10-00-000100
Vuln IDs
  • V-220718
  • V-63377
Rule IDs
  • SV-220718r569187_rule
  • SV-77867
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-22433r554639_chk

IIS is not installed by default. 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-22422r554640_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-220719 - SV-220719r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000382
Version
WN10-00-000105
Vuln IDs
  • V-220719
  • V-63381
Rule IDs
  • SV-220719r569187_rule
  • SV-77871
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-22434r554642_chk

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

Fix: F-22423r554643_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-220720 - SV-220720r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000110
Vuln IDs
  • V-220720
  • V-63383
Rule IDs
  • SV-220720r569187_rule
  • SV-77873
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-22435r554645_chk

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

Fix: F-22424r554646_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-220721 - SV-220721r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000382
Version
WN10-00-000115
Vuln IDs
  • V-220721
  • V-63385
Rule IDs
  • SV-220721r569187_rule
  • SV-77875
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-22436r554648_chk

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

Fix: F-22425r554649_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-220722 - SV-220722r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000382
Version
WN10-00-000120
Vuln IDs
  • V-220722
  • V-63389
Rule IDs
  • SV-220722r569187_rule
  • SV-77879
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Checks: C-22437r554651_chk

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

Fix: F-22426r554652_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 10.
CM-6 - Medium - CCI-000366 - V-220723 - SV-220723r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000130
Vuln IDs
  • V-220723
  • V-63393
Rule IDs
  • SV-220723r569187_rule
  • SV-77883
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-22438r554654_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-22427r554655_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-220724 - SV-220724r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000135
Vuln IDs
  • V-220724
  • V-63399
Rule IDs
  • SV-220724r569187_rule
  • SV-77889
A firewall provides a line of defense against attack, allowing or blocking inbound and outbound connections based on a set of rules.
Checks: C-22439r554657_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-22428r554658_fix

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

b
Inbound exceptions to the firewall on Windows 10 domain workstations must only allow authorized remote management hosts.
CM-6 - Medium - CCI-000366 - V-220725 - SV-220725r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000140
Vuln IDs
  • V-220725
  • V-63403
Rule IDs
  • SV-220725r569187_rule
  • SV-77893
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-22440r554660_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-22429r554661_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-220726 - SV-220726r851966_rule
RMF Control
SI-16
Severity
High
CCI
CCI-002824
Version
WN10-00-000145
Vuln IDs
  • V-220726
  • V-68845
Rule IDs
  • SV-220726r851966_rule
  • SV-83439
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-22441r554663_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-22430r554664_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-220727 - SV-220727r851967_rule
RMF Control
SI-16
Severity
High
CCI
CCI-002824
Version
WN10-00-000150
Vuln IDs
  • V-220727
  • V-68849
Rule IDs
  • SV-220727r851967_rule
  • SV-83445
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-22442r554666_chk

This is applicable to Windows 10 prior to v1709. 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-22431r554667_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-220728 - SV-220728r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000155
Vuln IDs
  • V-220728
  • V-70637
Rule IDs
  • SV-220728r569187_rule
  • SV-85259
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-22443r554669_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-22432r554670_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 should 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-220729 - SV-220729r793187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000160
Vuln IDs
  • V-220729
  • V-70639
Rule IDs
  • SV-220729r793187_rule
  • SV-85261
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-22444r793186_chk

Different methods are available to disable SMBv1 on Windows 10. This is the preferred method, however if V-220730 and V-220731 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-22433r554673_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-220730 - SV-220730r793189_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000165
Vuln IDs
  • V-220730
  • V-74723
Rule IDs
  • SV-220730r793189_rule
  • SV-89397
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-22445r793188_chk

Different methods are available to disable SMBv1 on Windows 10, if V-220729 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-22434r554676_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-220731 - SV-220731r793191_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000170
Vuln IDs
  • V-220731
  • V-74725
Rule IDs
  • SV-220731r793191_rule
  • SV-89399
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-22446r793190_chk

Different methods are available to disable SMBv1 on Windows 10, if V-220729 is 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-22435r554679_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 10.
CM-7 - Medium - CCI-000381 - V-220732 - SV-220732r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000175
Vuln IDs
  • V-220732
  • V-74719
Rule IDs
  • SV-220732r569187_rule
  • SV-89393
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-22447r554681_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-22436r554682_fix

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

b
Orphaned security identifiers (SIDs) must be removed from user rights on Windows 10.
CM-6 - Medium - CCI-000366 - V-220733 - SV-220733r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000190
Vuln IDs
  • V-220733
  • V-76505
Rule IDs
  • SV-220733r569187_rule
  • SV-91201
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-22448r554684_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-22437r554685_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-220734 - SV-220734r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000210
Vuln IDs
  • V-220734
  • V-72765
Rule IDs
  • SV-220734r569187_rule
  • SV-87403
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-22449r554687_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-22438r554688_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-220735 - SV-220735r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-00-000220
Vuln IDs
  • V-220735
  • V-72767
Rule IDs
  • SV-220735r569187_rule
  • SV-87405
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-22450r554690_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-22439r554691_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-220736 - SV-220736r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-00-000230
Vuln IDs
  • V-220736
  • V-72769
Rule IDs
  • SV-220736r569187_rule
  • SV-87407
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-22451r554693_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-22440r554694_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-220737 - SV-220737r569187_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN10-00-000240
Vuln IDs
  • V-220737
  • V-78129
Rule IDs
  • SV-220737r569187_rule
  • SV-92835
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 should 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 whitelisting can be used to enforce the policy to ensure compliance.
Checks: C-22452r554696_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 should 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 whitelisting 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-22441r554697_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 whitelisting to restrict the use of applications that can access the Internet.

b
Windows 10 nonpersistent VM sessions must not exceed 24 hours.
SC-28 - Medium - CCI-001199 - V-220738 - SV-220738r890426_rule
RMF Control
SC-28
Severity
Medium
CCI
CCI-001199
Version
WN10-00-000250
Vuln IDs
  • V-220738
  • V-102611
Rule IDs
  • SV-220738r890426_rule
  • SV-111557
For virtual desktop implementations (VDIs) where the virtual desktop instance is deleted or refreshed upon logoff, the organization should 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-22453r890424_chk

Ensure 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. If no such documented policy or procedure is in place, this is a finding.

Fix: F-22442r890425_fix

Set nonpersistent VM sessions to not exceed 24 hours.

b
Windows 10 account lockout duration must be configured to 15 minutes or greater.
AC-7 - Medium - CCI-002238 - V-220739 - SV-220739r851968_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-002238
Version
WN10-AC-000005
Vuln IDs
  • V-220739
  • V-63405
Rule IDs
  • SV-220739r851968_rule
  • SV-77895
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-22454r554702_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-22443r554703_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 3 or less.
AC-7 - Medium - CCI-000044 - V-220740 - SV-220740r569187_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN10-AC-000010
Vuln IDs
  • V-220740
  • V-63409
Rule IDs
  • SV-220740r569187_rule
  • SV-77899
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-22455r554705_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-22444r554706_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-220741 - SV-220741r851969_rule
RMF Control
AC-7
Severity
Medium
CCI
CCI-000044
Version
WN10-AC-000015
Vuln IDs
  • V-220741
  • V-63413
Rule IDs
  • SV-220741r851969_rule
  • SV-77903
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-22456r554708_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-22445r554709_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-220742 - SV-220742r569187_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000200
Version
WN10-AC-000020
Vuln IDs
  • V-220742
  • V-63415
Rule IDs
  • SV-220742r569187_rule
  • SV-77905
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-22457r554711_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-22446r554712_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-220743 - SV-220743r569187_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000199
Version
WN10-AC-000025
Vuln IDs
  • V-220743
  • V-63419
Rule IDs
  • SV-220743r569187_rule
  • SV-77909
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-22458r554714_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-22447r554715_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-220744 - SV-220744r569187_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000198
Version
WN10-AC-000030
Vuln IDs
  • V-220744
  • V-63421
Rule IDs
  • SV-220744r569187_rule
  • SV-77911
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-22459r554717_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-22448r554718_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-220745 - SV-220745r569187_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000205
Version
WN10-AC-000035
Vuln IDs
  • V-220745
  • V-63423
Rule IDs
  • SV-220745r569187_rule
  • SV-77913
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-22460r554720_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-22449r554721_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-220746 - SV-220746r569187_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000192
Version
WN10-AC-000040
Vuln IDs
  • V-220746
  • V-63427
Rule IDs
  • SV-220746r569187_rule
  • SV-77917
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-22461r554723_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-22450r554724_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-220747 - SV-220747r877397_rule
RMF Control
IA-5
Severity
High
CCI
CCI-000196
Version
WN10-AC-000045
Vuln IDs
  • V-220747
  • V-63429
Rule IDs
  • SV-220747r877397_rule
  • SV-77919
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-22462r554726_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-22451r554727_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-220748 - SV-220748r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000005
Vuln IDs
  • V-220748
  • V-63431
Rule IDs
  • SV-220748r569187_rule
  • SV-77921
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-22463r554729_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22452r554730_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-220749 - SV-220749r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000010
Vuln IDs
  • V-220749
  • V-63435
Rule IDs
  • SV-220749r569187_rule
  • SV-77925
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-22464r554732_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22453r554733_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.
AC-2 - Medium - CCI-000018 - V-220750 - SV-220750r851970_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-000018
Version
WN10-AU-000030
Vuln IDs
  • V-220750
  • V-63445
Rule IDs
  • SV-220750r851970_rule
  • SV-77935
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-22465r554735_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22454r554736_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.
AC-2 - Medium - CCI-000018 - V-220751 - SV-220751r851971_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-000018
Version
WN10-AU-000035
Vuln IDs
  • V-220751
  • V-63447
Rule IDs
  • SV-220751r851971_rule
  • SV-77937
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-22466r554738_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22455r554739_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-000018 - V-220752 - SV-220752r851972_rule
RMF Control
AC-2
Severity
Medium
CCI
CCI-000018
Version
WN10-AU-000040
Vuln IDs
  • V-220752
  • V-63449
Rule IDs
  • SV-220752r851972_rule
  • SV-77939
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-22467r554741_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22456r554742_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-220753 - SV-220753r851973_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000045
Vuln IDs
  • V-220753
  • V-63451
Rule IDs
  • SV-220753r851973_rule
  • SV-77941
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-22468r554744_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22457r554745_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-220754 - SV-220754r851974_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000050
Vuln IDs
  • V-220754
  • V-63453
Rule IDs
  • SV-220754r851974_rule
  • SV-77943
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-22469r554747_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22458r554748_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-220755 - SV-220755r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000054
Vuln IDs
  • V-220755
  • V-71759
Rule IDs
  • SV-220755r569187_rule
  • SV-86383
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-22470r554750_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22459r554751_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-220756 - SV-220756r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000060
Vuln IDs
  • V-220756
  • V-63457
Rule IDs
  • SV-220756r569187_rule
  • SV-77947
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-22471r554753_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22460r554754_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-220757 - SV-220757r569187_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000067
Version
WN10-AU-000065
Vuln IDs
  • V-220757
  • V-63459
Rule IDs
  • SV-220757r569187_rule
  • SV-77951
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-22472r554756_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22461r554757_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.
AC-17 - Medium - CCI-000067 - V-220758 - SV-220758r569187_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000067
Version
WN10-AU-000070
Vuln IDs
  • V-220758
  • V-63463
Rule IDs
  • SV-220758r569187_rule
  • SV-77953
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-22473r554759_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22462r554760_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.
AC-17 - Medium - CCI-000067 - V-220759 - SV-220759r569187_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000067
Version
WN10-AU-000075
Vuln IDs
  • V-220759
  • V-63467
Rule IDs
  • SV-220759r569187_rule
  • SV-77957
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-22474r554762_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22463r554763_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-220760 - SV-220760r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000080
Vuln IDs
  • V-220760
  • V-63469
Rule IDs
  • SV-220760r569187_rule
  • SV-77959
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-22475r554765_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22464r554766_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 10 must be configured to audit Object Access - File Share failures.
AU-12 - Medium - CCI-000172 - V-220761 - SV-220761r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000081
Vuln IDs
  • V-220761
  • V-75027
Rule IDs
  • SV-220761r569187_rule
  • SV-89701
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-22476r554768_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22465r554769_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 10 must be configured to audit Object Access - File Share successes.
AU-12 - Medium - CCI-000172 - V-220762 - SV-220762r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000082
Vuln IDs
  • V-220762
  • V-74721
Rule IDs
  • SV-220762r569187_rule
  • SV-89395
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-22477r554771_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22466r554772_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 10 must be configured to audit Object Access - Other Object Access Events successes.
AU-12 - Medium - CCI-000172 - V-220763 - SV-220763r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000083
Vuln IDs
  • V-220763
  • V-74411
Rule IDs
  • SV-220763r569187_rule
  • SV-89085
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-22478r554774_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22467r554775_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 10 must be configured to audit Object Access - Other Object Access Events failures.
AU-12 - Medium - CCI-000172 - V-220764 - SV-220764r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000084
Vuln IDs
  • V-220764
  • V-74409
Rule IDs
  • SV-220764r569187_rule
  • SV-89083
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-22479r554777_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22468r554778_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-220765 - SV-220765r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000085
Vuln IDs
  • V-220765
  • V-63471
Rule IDs
  • SV-220765r569187_rule
  • SV-77961
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-22480r554780_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22469r554781_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-220766 - SV-220766r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000090
Vuln IDs
  • V-220766
  • V-63473
Rule IDs
  • SV-220766r569187_rule
  • SV-77963
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-22481r554783_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22470r554784_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-220767 - SV-220767r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000100
Vuln IDs
  • V-220767
  • V-63479
Rule IDs
  • SV-220767r569187_rule
  • SV-77969
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-22482r554786_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22471r554787_fix

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

b
The system must be configured to audit Policy Change - Authentication Policy Change successes.
AU-12 - Medium - CCI-000172 - V-220768 - SV-220768r851975_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000105
Vuln IDs
  • V-220768
  • V-63481
Rule IDs
  • SV-220768r851975_rule
  • SV-77971
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-22483r554789_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22472r554790_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-220769 - SV-220769r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000107
Vuln IDs
  • V-220769
  • V-71761
Rule IDs
  • SV-220769r569187_rule
  • SV-86385
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-22484r554792_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22473r554793_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.
AU-12 - Medium - CCI-000172 - V-220770 - SV-220770r851976_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000110
Vuln IDs
  • V-220770
  • V-63483
Rule IDs
  • SV-220770r851976_rule
  • SV-77973
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-22485r554795_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22474r554796_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-220771 - SV-220771r851977_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000115
Vuln IDs
  • V-220771
  • V-63487
Rule IDs
  • SV-220771r851977_rule
  • SV-77977
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-22486r554798_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22475r554799_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-220772 - SV-220772r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000120
Vuln IDs
  • V-220772
  • V-63491
Rule IDs
  • SV-220772r569187_rule
  • SV-77981
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-22487r554801_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22476r554802_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-220773 - SV-220773r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000130
Vuln IDs
  • V-220773
  • V-63499
Rule IDs
  • SV-220773r569187_rule
  • SV-77989
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-22488r554804_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22477r554805_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-220774 - SV-220774r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000135
Vuln IDs
  • V-220774
  • V-63503
Rule IDs
  • SV-220774r569187_rule
  • SV-77993
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-22489r554807_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22478r554808_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-220775 - SV-220775r851978_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000140
Vuln IDs
  • V-220775
  • V-63507
Rule IDs
  • SV-220775r851978_rule
  • SV-77997
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-22490r554810_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22479r554811_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-220776 - SV-220776r851979_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000150
Vuln IDs
  • V-220776
  • V-63513
Rule IDs
  • SV-220776r851979_rule
  • SV-78003
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-22491r554813_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22480r554814_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-220777 - SV-220777r851980_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000155
Vuln IDs
  • V-220777
  • V-63515
Rule IDs
  • SV-220777r851980_rule
  • SV-78005
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-22492r554816_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22481r554817_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-220778 - SV-220778r851981_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000172
Version
WN10-AU-000160
Vuln IDs
  • V-220778
  • V-63517
Rule IDs
  • SV-220778r851981_rule
  • SV-78007
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-22493r554819_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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-22482r554820_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-220779 - SV-220779r877391_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
WN10-AU-000500
Vuln IDs
  • V-220779
  • V-63519
Rule IDs
  • SV-220779r877391_rule
  • SV-78009
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-22494r554822_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-22483r554823_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-220780 - SV-220780r877391_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
WN10-AU-000505
Vuln IDs
  • V-220780
  • V-63523
Rule IDs
  • SV-220780r877391_rule
  • SV-78013
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-22495r554825_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-22484r554826_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, documented with the ISSO.

b
The System event log size must be configured to 32768 KB or greater.
AU-4 - Medium - CCI-001849 - V-220781 - SV-220781r877391_rule
RMF Control
AU-4
Severity
Medium
CCI
CCI-001849
Version
WN10-AU-000510
Vuln IDs
  • V-220781
  • V-63527
Rule IDs
  • SV-220781r877391_rule
  • SV-78017
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-22496r554828_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-22485r554829_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 10 permissions for the Application event log must prevent access by non-privileged accounts.
AU-9 - Medium - CCI-000162 - V-220782 - SV-220782r569187_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
WN10-AU-000515
Vuln IDs
  • V-220782
  • V-63533
Rule IDs
  • SV-220782r569187_rule
  • SV-78023
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-22497r554831_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-22486r554832_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 10 permissions for the Security event log must prevent access by non-privileged accounts.
AU-9 - Medium - CCI-000162 - V-220783 - SV-220783r569187_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
WN10-AU-000520
Vuln IDs
  • V-220783
  • V-63537
Rule IDs
  • SV-220783r569187_rule
  • SV-78027
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-22498r554834_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-22487r554835_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 10 permissions for the System event log must prevent access by non-privileged accounts.
AU-9 - Medium - CCI-000162 - V-220784 - SV-220784r569187_rule
RMF Control
AU-9
Severity
Medium
CCI
CCI-000162
Version
WN10-AU-000525
Vuln IDs
  • V-220784
  • V-63541
Rule IDs
  • SV-220784r569187_rule
  • SV-78031
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-22499r554837_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-22488r554838_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 10 must be configured to audit Other Policy Change Events Failures.
AU-3 - Medium - CCI-000130 - V-220786 - SV-220786r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN10-AU-000555
Vuln IDs
  • V-220786
  • V-99553
Rule IDs
  • SV-220786r569187_rule
  • SV-108657
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-22501r554843_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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 >> Other Policy Change Events - Failure

Fix: F-22490r554844_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 10 must be configured to audit other Logon/Logoff Events Successes.
AU-3 - Medium - CCI-000130 - V-220787 - SV-220787r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN10-AU-000560
Vuln IDs
  • V-220787
  • V-99543
Rule IDs
  • SV-220787r569187_rule
  • SV-108647
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-22502r554846_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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 >> Other Logon/Logoff Events - Success

Fix: F-22491r554847_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 10 must be configured to audit other Logon/Logoff Events Failures.
AU-3 - Medium - CCI-000130 - V-220788 - SV-220788r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN10-AU-000565
Vuln IDs
  • V-220788
  • V-99541
Rule IDs
  • SV-220788r569187_rule
  • SV-108645
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-22503r554849_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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 >> Other Logon/Logoff Events - Failure

Fix: F-22492r554850_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 10 must be configured to audit Detailed File Share Failures.
AU-3 - Medium - CCI-000130 - V-220789 - SV-220789r819664_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN10-AU-000570
Vuln IDs
  • V-220789
  • V-99545
Rule IDs
  • SV-220789r819664_rule
  • SV-108649
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 auditing of 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-22504r819662_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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 >> Detailed File Share - Failure

Fix: F-22493r819663_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 10 must be configured to audit MPSSVC Rule-Level Policy Change Successes.
AU-3 - Medium - CCI-000130 - V-220790 - SV-220790r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN10-AU-000575
Vuln IDs
  • V-220790
  • V-99547
Rule IDs
  • SV-220790r569187_rule
  • SV-108651
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-22505r554855_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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 >> MPSSVC Rule-Level Policy Change - Success

Fix: F-22494r554856_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 10 must be configured to audit MPSSVC Rule-Level Policy Change Failures.
AU-3 - Medium - CCI-000130 - V-220791 - SV-220791r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000130
Version
WN10-AU-000580
Vuln IDs
  • V-220791
  • V-99549
Rule IDs
  • SV-220791r569187_rule
  • SV-108653
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-22506r554858_chk

Security Option "Audit: Force audit policy subcategory settings (Windows Vista or later) to override audit policy category settings" must be set to "Enabled" (WN10-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 >> MPSSVC Rule-Level Policy Change - Failure

Fix: F-22495r554859_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-220792 - SV-220792r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000005
Vuln IDs
  • V-220792
  • V-63545
Rule IDs
  • SV-220792r569187_rule
  • SV-78035
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-22507r554861_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-22496r554862_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 10 must cover or disable the built-in or attached camera when not in use.
CM-7 - Medium - CCI-000381 - V-220793 - SV-220793r819667_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000007
Vuln IDs
  • V-220793
  • V-100093
Rule IDs
  • SV-220793r819667_rule
  • SV-109197
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-22508r819665_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 the 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: Value Value Data: Deny If "Value" 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-22497r819666_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: Value Value Data: Deny

b
The display of slide shows on the lock screen must be disabled.
CM-7 - Medium - CCI-000381 - V-220794 - SV-220794r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000010
Vuln IDs
  • V-220794
  • V-63549
Rule IDs
  • SV-220794r569187_rule
  • SV-78039
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-22509r554867_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-22498r554868_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-220795 - SV-220795r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000020
Vuln IDs
  • V-220795
  • V-63555
Rule IDs
  • SV-220795r569187_rule
  • SV-78045
Configuring the system to disable IPv6 source routing protects against spoofing.
Checks: C-22510r554870_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-22499r554871_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-220796 - SV-220796r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000025
Vuln IDs
  • V-220796
  • V-63559
Rule IDs
  • SV-220796r569187_rule
  • SV-78049
Configuring the system to disable IP source routing protects against spoofing.
Checks: C-22511r554873_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-22500r554874_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-220797 - SV-220797r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-CC-000030
Vuln IDs
  • V-220797
  • V-63563
Rule IDs
  • SV-220797r569187_rule
  • SV-78053
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-22512r554876_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-22501r554877_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-220798 - SV-220798r851985_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN10-CC-000035
Vuln IDs
  • V-220798
  • V-63567
Rule IDs
  • SV-220798r851985_rule
  • SV-78057
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-22513r554879_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-22502r554880_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-220799 - SV-220799r569187_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN10-CC-000037
Vuln IDs
  • V-220799
  • V-63597
Rule IDs
  • SV-220799r569187_rule
  • SV-78087
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-22514r554882_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-22503r554883_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-220800 - SV-220800r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000038
Vuln IDs
  • V-220800
  • V-71763
Rule IDs
  • SV-220800r569187_rule
  • SV-86387
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 10. This setting ensures this is enforced.
Checks: C-22515r554885_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-22504r554886_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 10. 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-220801 - SV-220801r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000039
Vuln IDs
  • V-220801
  • V-72329
Rule IDs
  • SV-220801r569187_rule
  • SV-86953
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-22516r554888_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-22505r554889_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-220802 - SV-220802r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000040
Vuln IDs
  • V-220802
  • V-63569
Rule IDs
  • SV-220802r569187_rule
  • SV-78059
Insecure guest logons allow unauthenticated access to shared folders. Shared resources on a system must require authentication to establish proper access.
Checks: C-22517r554891_chk

Windows 10 v1507 LTSB version does not include this setting; it is NA for those systems. 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-22506r554892_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-220803 - SV-220803r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000044
Vuln IDs
  • V-220803
  • V-71765
Rule IDs
  • SV-220803r569187_rule
  • SV-86389
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-22518r554894_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-22507r554895_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
Windows 10 must be configured to prioritize ECC Curves with longer key lengths first.
IA-7 - Medium - CCI-000803 - V-220805 - SV-220805r569187_rule
RMF Control
IA-7
Severity
Medium
CCI
CCI-000803
Version
WN10-CC-000052
Vuln IDs
  • V-220805
  • V-74413
Rule IDs
  • SV-220805r569187_rule
  • SV-89087
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-22520r554900_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-22509r554901_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.
CM-6 - Medium - CCI-000366 - V-220806 - SV-220806r890427_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000055
Vuln IDs
  • V-220806
  • V-63581
Rule IDs
  • SV-220806r890427_rule
  • SV-78071
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-22521r857186_chk

The default behavior for "Minimize the number of simultaneous connections to the Internet or a Windows Domain" is "Enabled". If the registry value name below does not exist, this is not a finding. If it exists and is configured with a value of "3", this is not a finding. 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-22510r857187_fix

The default behavior for "Minimize the number of simultaneous connections to the Internet or a Windows Domain" is "Enabled". If this must 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-220807 - SV-220807r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000060
Vuln IDs
  • V-220807
  • V-63585
Rule IDs
  • SV-220807r569187_rule
  • SV-78075
Multiple network connections can provide additional attack vectors to a system and should be limited. When connected to a domain, communication must go through the domain connection.
Checks: C-22522r554906_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-22511r554907_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-220808 - SV-220808r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000065
Vuln IDs
  • V-220808
  • V-63591
Rule IDs
  • SV-220808r569187_rule
  • SV-78081
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-22523r554909_chk

This is NA as of v1803 of Windows 10; Wi-Fi sense is no longer available. 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-22512r554910_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". v1507 LTSB does not include this group policy setting. It may be configured through other means such as using group policy from a later version of Windows 10 or a registry update.

b
Command line data must be included in process creation events.
AU-3 - Medium - CCI-000135 - V-220809 - SV-220809r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000135
Version
WN10-CC-000066
Vuln IDs
  • V-220809
  • V-68817
Rule IDs
  • SV-220809r569187_rule
  • SV-83409
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-22524r554912_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-22513r554913_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 10 must be configured to enable Remote host allows delegation of non-exportable credentials.
CM-6 - Medium - CCI-000366 - V-220810 - SV-220810r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000068
Vuln IDs
  • V-220810
  • V-74699
Rule IDs
  • SV-220810r569187_rule
  • SV-89373
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-22525r554915_chk

This is NA for Windows 10 LTSC\B versions 1507 and 1607. 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-22514r554916_fix

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

a
Virtualization Based Security must be enabled on Windows 10 with the platform security level configured to Secure Boot or Secure Boot with DMA Protection.
CM-6 - Low - CCI-000366 - V-220811 - SV-220811r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-CC-000070
Vuln IDs
  • V-220811
  • V-63595
Rule IDs
  • SV-220811r569187_rule
  • SV-78085
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-22526r554918_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 NOTE: The severity level for the requirement will be upgraded to CAT II starting January 2020.

Fix: F-22515r554919_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 10 domain-joined systems.
CM-6 - High - CCI-000366 - V-220812 - SV-220812r890430_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN10-CC-000075
Vuln IDs
  • V-220812
  • V-63599
Rule IDs
  • SV-220812r890430_rule
  • SV-78089
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-22527r890428_chk

Confirm Credential Guard is running on domain-joined systems. For devices that support Credential Guard, this feature must be enabled. Organizations must 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 (VDIs) 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 Not Applicable. 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 Security 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-22516r890429_fix

Virtualization based security, including Credential Guard, currently cannot be implemented in VDIs 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 Not Applicable. 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:". v1507 LTSB does not include selection options; select "Enable Credential Guard". 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
Early Launch Antimalware, Boot-Start Driver Initialization Policy must prevent boot drivers.
CM-6 - Medium - CCI-000366 - V-220813 - SV-220813r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000085
Vuln IDs
  • V-220813
  • V-63607
Rule IDs
  • SV-220813r569187_rule
  • SV-78097
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-22528r554924_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 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-22517r554925_fix

Ensure that Early Launch Antimalware - Boot-Start Driver Initialization policy is set to enforce "Good, unknown and bad but critical" (preventing "bad"). If this needs to be corrected 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-220814 - SV-220814r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000090
Vuln IDs
  • V-220814
  • V-63609
Rule IDs
  • SV-220814r569187_rule
  • SV-78099
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-22529r554927_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-22518r554928_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-220815 - SV-220815r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000100
Vuln IDs
  • V-220815
  • V-63615
Rule IDs
  • SV-220815r569187_rule
  • SV-78105
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-22530r554930_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-22519r554931_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-220816 - SV-220816r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000105
Vuln IDs
  • V-220816
  • V-63621
Rule IDs
  • SV-220816r569187_rule
  • SV-78111
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-22531r554933_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-22520r554934_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-220817 - SV-220817r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000110
Vuln IDs
  • V-220817
  • V-63623
Rule IDs
  • SV-220817r569187_rule
  • SV-78113
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-22532r554936_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-22521r554937_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-220818 - SV-220818r857191_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000115
Vuln IDs
  • V-220818
  • V-63627
Rule IDs
  • SV-220818r857191_rule
  • SV-78117
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-22533r857189_chk

This requirement is applicable to domain-joined systems. For standalone or nondomain-joined systems, this is NA. The default behavior for "Support device authentication using certificate" is "Automatic". If the registry value name below does not exist, this is not a finding. If it exists and is configured with a value of "1", this is not a finding. 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-22522r857190_fix

This requirement is applicable to domain-joined systems. For standalone or nondomain-joined systems, this is NA. The default behavior for "Support device authentication using certificate" is "Automatic". If this needs to be corrected, configure 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-220819 - SV-220819r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000120
Vuln IDs
  • V-220819
  • V-63629
Rule IDs
  • SV-220819r569187_rule
  • SV-78119
Enabling interaction with the network selection UI allows users to change connections to available networks without signing into Windows.
Checks: C-22534r554942_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-22523r554943_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-220820 - SV-220820r857194_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000130
Vuln IDs
  • V-220820
  • V-63633
Rule IDs
  • SV-220820r857194_rule
  • SV-78123
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-22535r857192_chk

This requirement is applicable to domain-joined systems. For standalone or nondomain-joined 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-22524r857193_fix

This requirement is applicable to domain-joined systems. For standalone or nondomain-joined 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-220821 - SV-220821r851986_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN10-CC-000145
Vuln IDs
  • V-220821
  • V-63645
Rule IDs
  • SV-220821r851986_rule
  • SV-78135
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-22536r554948_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-22525r554949_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-220822 - SV-220822r851987_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN10-CC-000150
Vuln IDs
  • V-220822
  • V-63649
Rule IDs
  • SV-220822r851987_rule
  • SV-78139
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-22537r554951_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-22526r554952_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-220823 - SV-220823r569187_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN10-CC-000155
Vuln IDs
  • V-220823
  • V-63651
Rule IDs
  • SV-220823r569187_rule
  • SV-78141
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-22538r554954_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-22527r554955_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-220824 - SV-220824r877039_rule
RMF Control
IA-3
Severity
Medium
CCI
CCI-001967
Version
WN10-CC-000165
Vuln IDs
  • V-220824
  • V-63657
Rule IDs
  • SV-220824r877039_rule
  • SV-78147
Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.
Checks: C-22539r554957_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-22528r554958_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-220825 - SV-220825r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-CC-000170
Vuln IDs
  • V-220825
  • V-63659
Rule IDs
  • SV-220825r569187_rule
  • SV-78149
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-22540r554960_chk

Windows 10 LTSC\B versions do not support the Microsoft Store and modern apps; this is NA for those systems. 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-22529r554961_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-220826 - SV-220826r569187_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN10-CC-000175
Vuln IDs
  • V-220826
  • V-63663
Rule IDs
  • SV-220826r569187_rule
  • SV-78153
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-22541r554963_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-22530r554964_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-220827 - SV-220827r851989_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN10-CC-000180
Vuln IDs
  • V-220827
  • V-63667
Rule IDs
  • SV-220827r851989_rule
  • SV-78157
Allowing autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon as you insert media 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-22542r554966_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-22531r554967_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-220828 - SV-220828r851990_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN10-CC-000185
Vuln IDs
  • V-220828
  • V-63671
Rule IDs
  • SV-220828r851990_rule
  • SV-78161
Allowing autorun commands to execute may introduce malicious code to a system. Configuring this setting prevents autorun commands from executing.
Checks: C-22543r554969_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-22532r554970_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-220829 - SV-220829r851991_rule
RMF Control
CM-7
Severity
High
CCI
CCI-001764
Version
WN10-CC-000190
Vuln IDs
  • V-220829
  • V-63673
Rule IDs
  • SV-220829r851991_rule
  • SV-78163
Allowing autoplay to execute may introduce malicious code to a system. Autoplay begins reading from a drive as soon as you insert media 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 you enable this policy, you can also disable autoplay on all drives.
Checks: C-22544r554972_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-22533r554973_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 Window 10.
CM-6 - Medium - CCI-000366 - V-220830 - SV-220830r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000195
Vuln IDs
  • V-220830
  • V-63677
Rule IDs
  • SV-220830r569187_rule
  • SV-78167
Enhanced anti-spoofing provides additional protections when using facial recognition with devices that support it.
Checks: C-22545r554975_chk

Windows 10 v1507 LTSB version does not include this setting; it is NA for those systems. 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-22534r554976_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Biometrics >> Facial Features >> "Configure enhanced anti-spoofing" to "Enabled". v1607: The policy name is "Use enhanced anti-spoofing when available".

a
Microsoft consumer experiences must be turned off.
CM-7 - Low - CCI-000381 - V-220831 - SV-220831r569187_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN10-CC-000197
Vuln IDs
  • V-220831
  • V-71771
Rule IDs
  • SV-220831r569187_rule
  • SV-86395
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 whitelisting. Turning off Microsoft consumer experiences will help prevent the unwanted installation of suggested applications.
Checks: C-22546r554978_chk

Windows 10 v1507 LTSB version does not include this setting; it is NA for those systems. 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-22535r554979_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-220832 - SV-220832r569187_rule
RMF Control
SC-3
Severity
Medium
CCI
CCI-001084
Version
WN10-CC-000200
Vuln IDs
  • V-220832
  • V-63679
Rule IDs
  • SV-220832r569187_rule
  • SV-78169
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-22547r554981_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-22536r554982_fix

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

b
If Enhanced diagnostic data is enabled it must be limited to the minimum required to support Windows Analytics.
CM-6 - Medium - CCI-000366 - V-220833 - SV-220833r793250_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000204
Vuln IDs
  • V-220833
  • V-82145
Rule IDs
  • SV-220833r793250_rule
  • SV-96859
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-22548r793249_chk

This setting requires v1709 or later of Windows 10; it is NA for prior versions. If "Enhanced" level is enabled for telemetry, this must be configured. If "Security" or "Basic" are configured, this is NA. (See V-220834). 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-22537r554985_fix

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

b
Windows Telemetry must not be configured to Full.
CM-6 - Medium - CCI-000366 - V-220834 - SV-220834r930673_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000205
Vuln IDs
  • V-220834
  • V-63683
Rule IDs
  • SV-220834r930673_rule
  • SV-78173
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. This requires the configuration of an additional setting available with v1709 and later of Windows 10.
Checks: C-22549r930671_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) If an organization is using v1709 or later of Windows 10, this may be configured to "Enhanced" to support Windows Analytics. V-220833 must also be configured to limit the Enhanced diagnostic data to the minimum required by Windows Analytics. This registry value will then be 0x00000002 (2).

Fix: F-22538r930672_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Data Collection and Preview Builds >> "Allow Telemetry" to "Enabled" with "0 - Security [Enterprise Only]" or "1 - Basic" selected in "Options:". If an organization is using v1709 or later of Windows 10, this may be configured to "2 - Enhanced" to support Windows Analytics. V-220833 must also be configured to limit the Enhanced diagnostic data to the minimum required by Windows Analytics.

a
Windows Update must not obtain updates from other PCs on the internet.
CM-6 - Low - CCI-000366 - V-220835 - SV-220835r857197_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-CC-000206
Vuln IDs
  • V-220835
  • V-65681
Rule IDs
  • SV-220835r857197_rule
  • SV-80171
Windows 10 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-22550r857195_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. v1507 LTSB: Domain joined systems: Verify the registry value above. If the value is not 0x00000000 (0) or 0x00000001 (1), this is a finding. Standalone or nondomain-joined 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-22539r857196_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) v1507 (LTSB) does not include this group policy setting locally. For domain-joined systems, configure through domain group policy as "HTTP only (0)" or "Lan (1)". For standalone or nondomain-joined systems, configure using Settings >> Update & Security >> Windows Update >> Advanced Options >> "Choose how updates are delivered" with either "Off" or "PCs on my local network" selected.

b
The Windows Defender SmartScreen for Explorer must be enabled.
CM-7 - Medium - CCI-000381 - V-220836 - SV-220836r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000210
Vuln IDs
  • V-220836
  • V-63685
Rule IDs
  • SV-220836r569187_rule
  • SV-78175
Windows Defender SmartScreen helps protect systems from programs downloaded from the internet that may be malicious. Enabling Windows Defender SmartScreen will warn or prevent users from running potentially malicious programs.
Checks: C-22551r554993_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 v1607 LTSB: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: EnableSmartScreen Value Type: REG_DWORD Value: 0x00000001 (1) v1507 LTSB: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Windows\System\ Value Name: EnableSmartScreen Value Type: REG_DWORD Value: 0x00000002 (2)

Fix: F-22540r554994_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 10 includes duplicate policies for this setting. It can also be configured under Computer Configuration >> Administrative Templates >> Windows Components >> Windows Defender SmartScreen >> Explorer. v1607 LTSB: Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Configure Windows SmartScreen" to "Enabled". (Selection options are not available.) v1507 LTSB: Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Configure Windows SmartScreen" to "Enabled" with "Require approval from an administrator before running downloaded unknown software" selected.

b
Explorer Data Execution Prevention must be enabled.
SI-16 - Medium - CCI-002824 - V-220837 - SV-220837r851992_rule
RMF Control
SI-16
Severity
Medium
CCI
CCI-002824
Version
WN10-CC-000215
Vuln IDs
  • V-220837
  • V-63689
Rule IDs
  • SV-220837r851992_rule
  • SV-78179
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-22552r554996_chk

The default behavior is for data execution prevention to be turned on for file explorer. If the registry value name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. 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-22541r554997_fix

The default behavior is for data execution prevention to be turned on for file explorer. If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> File Explorer >> "Turn off Data Execution Prevention for Explorer" to "Not Configured" or "Disabled".

a
Turning off File Explorer heap termination on corruption must be disabled.
SC-5 - Low - CCI-002385 - V-220838 - SV-220838r851993_rule
RMF Control
SC-5
Severity
Low
CCI
CCI-002385
Version
WN10-CC-000220
Vuln IDs
  • V-220838
  • V-63691
Rule IDs
  • SV-220838r851993_rule
  • SV-78181
Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.
Checks: C-22553r554999_chk

The default behavior is for File Explorer heap termination on corruption to be enabled. If the registry Value Name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. 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-22542r555000_fix

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

b
File Explorer shell protocol must run in protected mode.
CM-6 - Medium - CCI-000366 - V-220839 - SV-220839r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000225
Vuln IDs
  • V-220839
  • V-63695
Rule IDs
  • SV-220839r569187_rule
  • SV-78185
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-22554r555002_chk

The default behavior is for shell protected mode to be turned on for file explorer. If the registry value name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. 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-22543r555003_fix

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

b
Users must not be allowed to ignore Windows Defender SmartScreen filter warnings for malicious websites in Microsoft Edge.
CM-6 - Medium - CCI-000366 - V-220840 - SV-220840r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000230
Vuln IDs
  • V-220840
  • V-63699
Rule IDs
  • SV-220840r569187_rule
  • SV-78189
The Windows Defender SmartScreen filter in Microsoft Edge provides warning messages and blocks potentially malicious websites and file downloads. If users are allowed to ignore warnings from the Windows Defender SmartScreen filter they could still access malicious websites.
Checks: C-22555r555005_chk

This is applicable to unclassified systems, for other systems this is NA. Windows 10 LTSC\B versions do not include Microsoft Edge, this is NA for those systems. 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\MicrosoftEdge\PhishingFilter\ Value Name: PreventOverride Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-22544r555006_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Prevent bypassing Windows Defender SmartScreen prompts for sites" to "Enabled". Windows 10 includes duplicate policies for this setting. It can also be configured under Computer Configuration >> Administrative Templates >> Windows Components >> Windows Defender SmartScreen >> Microsoft Edge.

b
Users must not be allowed to ignore Windows Defender SmartScreen filter warnings for unverified files in Microsoft Edge.
CM-6 - Medium - CCI-000366 - V-220841 - SV-220841r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000235
Vuln IDs
  • V-220841
  • V-63701
Rule IDs
  • SV-220841r569187_rule
  • SV-78191
The Windows Defender SmartScreen filter in Microsoft Edge provides warning messages and blocks potentially malicious websites and file downloads. If users are allowed to ignore warnings from the Windows Defender SmartScreen filter they could still download potentially malicious files.
Checks: C-22556r555008_chk

This is applicable to unclassified systems, for other systems this is NA. Windows 10 LTSC\B versions do not include Microsoft Edge, this is NA for those systems. 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\MicrosoftEdge\PhishingFilter\ Value Name: PreventOverrideAppRepUnknown Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-22545r555009_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Prevent bypassing Windows Defender SmartScreen prompts for files" to "Enabled". Windows 10 includes duplicate policies for this setting. It can also be configured under Computer Configuration >> Administrative Templates >> Windows Components >> Windows Defender SmartScreen >> Microsoft Edge.

b
Windows 10 must be configured to prevent certificate error overrides in Microsoft Edge.
CM-6 - Medium - CCI-000366 - V-220842 - SV-220842r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000238
Vuln IDs
  • V-220842
  • V-82139
Rule IDs
  • SV-220842r569187_rule
  • SV-96853
Web security certificates provide an indication whether a site is legitimate. This policy setting prevents the user from ignoring Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificate errors that interrupt browsing.
Checks: C-22557r555011_chk

This setting is applicable starting with v1809 of Windows 10; it is NA for prior versions. Windows 10 LTSC\B versions do not include Microsoft Edge; this is NA for those systems. 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\MicrosoftEdge\Internet Settings\ Value Name: PreventCertErrorOverrides Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-22546r555012_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Prevent certificate error overrides" to "Enabled".

b
The password manager function in the Edge browser must be disabled.
CM-6 - Medium - CCI-000366 - V-220843 - SV-220843r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000245
Vuln IDs
  • V-220843
  • V-63709
Rule IDs
  • SV-220843r569187_rule
  • SV-78199
Passwords save locally for re-use when browsing may be subject to compromise. Disabling the Edge password manager will prevent this for the browser.
Checks: C-22558r555014_chk

Windows 10 LTSC\B versions do not include Microsoft Edge, this is NA for those systems. 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\MicrosoftEdge\Main\ Value Name: FormSuggest Passwords Type: REG_SZ Value: no

Fix: F-22547r555015_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Configure Password Manager" to "Disabled".

b
The Windows Defender SmartScreen filter for Microsoft Edge must be enabled.
CM-6 - Medium - CCI-000366 - V-220844 - SV-220844r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000250
Vuln IDs
  • V-220844
  • V-63713
Rule IDs
  • SV-220844r569187_rule
  • SV-78203
The Windows Defender SmartScreen filter in Microsoft Edge provides warning messages and blocks potentially malicious websites.
Checks: C-22559r555017_chk

This is applicable to unclassified systems, for other systems this is NA. Windows 10 LTSC\B versions do not include Microsoft Edge, this is NA for those systems. 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\MicrosoftEdge\PhishingFilter\ Value Name: EnabledV9 Type: REG_DWORD Value: 0x00000001 (1)

Fix: F-22548r555018_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Configure Windows Defender SmartScreen" to "Enabled". Windows 10 includes duplicate policies for this setting. It can also be configured under Computer Configuration >> Administrative Templates >> Windows Components >> Windows Defender SmartScreen >> Microsoft Edge.

b
Windows 10 must be configured to disable Windows Game Recording and Broadcasting.
CM-7 - Medium - CCI-000381 - V-220845 - SV-220845r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000252
Vuln IDs
  • V-220845
  • V-74417
Rule IDs
  • SV-220845r569187_rule
  • SV-89091
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-22560r555020_chk

This is NA for Windows 10 LTSC\B versions 1507 and 1607. 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-22549r555021_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-220846 - SV-220846r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000255
Vuln IDs
  • V-220846
  • V-63717
Rule IDs
  • SV-220846r569187_rule
  • SV-78207
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-22561r555023_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-22550r555024_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Hello for Business >> "Use a hardware security device" to "Enabled". v1507 LTSB: The policy path is Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Passport for Work.

b
Windows 10 must be configured to require a minimum pin length of six characters or greater.
CM-6 - Medium - CCI-000366 - V-220847 - SV-220847r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000260
Vuln IDs
  • V-220847
  • V-63721
Rule IDs
  • SV-220847r569187_rule
  • SV-78211
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-22562r555026_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-22551r555027_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> PIN Complexity >> "Minimum PIN length" to "6" or greater. v1607 LTSB: The policy path is Computer Configuration >> Administrative Templates >> Windows Components >> Windows Hello for Business >> Pin Complexity. v1507 LTSB: The policy path is Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Passport for Work >> Pin Complexity.

b
Passwords must not be saved in the Remote Desktop Client.
IA-11 - Medium - CCI-002038 - V-220848 - SV-220848r851994_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN10-CC-000270
Vuln IDs
  • V-220848
  • V-63729
Rule IDs
  • SV-220848r851994_rule
  • SV-78219
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-22563r555029_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-22552r555030_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-220849 - SV-220849r569187_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN10-CC-000275
Vuln IDs
  • V-220849
  • V-63731
Rule IDs
  • SV-220849r569187_rule
  • SV-78221
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-22564r555032_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-22553r555033_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-220850 - SV-220850r851995_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN10-CC-000280
Vuln IDs
  • V-220850
  • V-63733
Rule IDs
  • SV-220850r851995_rule
  • SV-78223
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-22565r555035_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-22554r555036_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-220851 - SV-220851r877394_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-001453
Version
WN10-CC-000285
Vuln IDs
  • V-220851
  • V-63737
Rule IDs
  • SV-220851r877394_rule
  • SV-78227
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-22566r555038_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-22555r555039_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-220852 - SV-220852r877398_rule
RMF Control
AC-17
Severity
Medium
CCI
CCI-000068
Version
WN10-CC-000290
Vuln IDs
  • V-220852
  • V-63741
Rule IDs
  • SV-220852r877398_rule
  • SV-78231
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-22567r555041_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-22556r555042_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-220853 - SV-220853r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000295
Vuln IDs
  • V-220853
  • V-63743
Rule IDs
  • SV-220853r569187_rule
  • SV-78233
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.
Checks: C-22568r555044_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-22557r555045_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-220854 - SV-220854r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000300
Vuln IDs
  • V-220854
  • V-63747
Rule IDs
  • SV-220854r569187_rule
  • SV-78237
Basic authentication uses plain text passwords that could be used to compromise a system.
Checks: C-22569r555047_chk

The default behavior is for the Windows RSS platform to not use Basic authentication over HTTP connections. If the registry value name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. 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-22558r555048_fix

The default behavior is for the Windows RSS platform to not use Basic authentication over HTTP connections. If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> RSS Feeds >> "Turn on Basic feed authentication over HTTP" to "Not Configured" or "Disabled".

b
Indexing of encrypted files must be turned off.
CM-7 - Medium - CCI-000381 - V-220855 - SV-220855r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000305
Vuln IDs
  • V-220855
  • V-63751
Rule IDs
  • SV-220855r569187_rule
  • SV-78241
Indexing of encrypted files may expose sensitive data. This setting prevents encrypted files from being indexed.
Checks: C-22570r555050_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-22559r555051_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-220856 - SV-220856r851997_rule
RMF Control
CM-11
Severity
Medium
CCI
CCI-001812
Version
WN10-CC-000310
Vuln IDs
  • V-220856
  • V-63321
Rule IDs
  • SV-220856r851997_rule
  • SV-77811
Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.
Checks: C-22571r555053_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-22560r555054_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 Always install with elevated privileges must be disabled.
CM-11 - High - CCI-001812 - V-220857 - SV-220857r851998_rule
RMF Control
CM-11
Severity
High
CCI
CCI-001812
Version
WN10-CC-000315
Vuln IDs
  • V-220857
  • V-63325
Rule IDs
  • SV-220857r851998_rule
  • SV-77815
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-22572r555056_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-22561r555057_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-220858 - SV-220858r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000320
Vuln IDs
  • V-220858
  • V-63329
Rule IDs
  • SV-220858r569187_rule
  • SV-77819
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-22573r555059_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 the registry value name below does not exist, this is not a finding. If it exists and is configured with a value of "0", this is not a finding. 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-22562r555060_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. If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Windows Installer >> "Prevent Internet Explorer security prompt for Windows Installer scripts" to "Not Configured" or "Disabled".

b
Automatically signing in the last interactive user after a system-initiated restart must be disabled.
CM-6 - Medium - CCI-000366 - V-220859 - SV-220859r877377_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000325
Vuln IDs
  • V-220859
  • V-63333
Rule IDs
  • SV-220859r877377_rule
  • SV-77823
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-22574r555062_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-22563r555063_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 10.
AU-3 - Medium - CCI-000135 - V-220860 - SV-220860r569187_rule
RMF Control
AU-3
Severity
Medium
CCI
CCI-000135
Version
WN10-CC-000326
Vuln IDs
  • V-220860
  • V-68819
Rule IDs
  • SV-220860r569187_rule
  • SV-83411
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-22575r555065_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-22564r555066_fix

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

b
The Windows Explorer Preview pane must be disabled for Windows 10.
CM-6 - Medium - CCI-000366 - V-220861 - SV-220861r877377_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-CC-000328
Vuln IDs
  • V-220861
  • V-102617
Rule IDs
  • SV-220861r877377_rule
  • SV-111563
A known vulnerability in Windows 10 could allow the execution of malicious code by either opening a compromised document or viewing it in the Windows Preview pane. Organizations must disable the Windows Preview pane and Windows Detail pane.
Checks: C-22576r603220_chk

If the following registry values do not exist or are not configured as specified, this is a finding: Registry Hive: HKEY_CURRENT_USER Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer Value Name: NoPreviewPane Value Type: REG_DWORD Value: 1 Registry Hive: HKEY_CURRENT_USER Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer Value Name: NoReadingPane Value Type: REG_DWORD Value: 1

Fix: F-22565r603223_fix

Ensure the following settings are configured for Windows 10 locally or applied through group policy. Configure the policy value for User Configuration >> Administrative Templates >> Windows Components >> File Explorer >> Explorer Frame Pane "Turn off Preview Pane" to "Enabled". Configure the policy value for User Configuration >> Administrative Templates >> Windows Components >> File Explorer >> Explorer Frame Pane "Turn on or off details pane" to "Enabled" and "Configure details pane" to "Always hide".

c
The Windows Remote Management (WinRM) client must not use Basic authentication.
MA-4 - High - CCI-000877 - V-220862 - SV-220862r877395_rule
RMF Control
MA-4
Severity
High
CCI
CCI-000877
Version
WN10-CC-000330
Vuln IDs
  • V-220862
  • V-63335
Rule IDs
  • SV-220862r877395_rule
  • SV-77825
Basic authentication uses plain text passwords that could be used to compromise a system.
Checks: C-22577r555071_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-22566r555072_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-220863 - SV-220863r877382_rule
RMF Control
MA-4
Severity
Medium
CCI
CCI-002890
Version
WN10-CC-000335
Vuln IDs
  • V-220863
  • V-63339
Rule IDs
  • SV-220863r877382_rule
  • SV-77829
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-22578r555074_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-22567r555075_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-220865 - SV-220865r877395_rule
RMF Control
MA-4
Severity
High
CCI
CCI-000877
Version
WN10-CC-000345
Vuln IDs
  • V-220865
  • V-63347
Rule IDs
  • SV-220865r877395_rule
  • SV-77837
Basic authentication uses plain text passwords that could be used to compromise a system.
Checks: C-22580r555080_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-22569r654973_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-002890 - V-220866 - SV-220866r877382_rule
RMF Control
MA-4
Severity
Medium
CCI
CCI-002890
Version
WN10-CC-000350
Vuln IDs
  • V-220866
  • V-63369
Rule IDs
  • SV-220866r877382_rule
  • SV-77859
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-22581r555083_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-22570r555084_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-220867 - SV-220867r852001_rule
RMF Control
IA-11
Severity
Medium
CCI
CCI-002038
Version
WN10-CC-000355
Vuln IDs
  • V-220867
  • V-63375
Rule IDs
  • SV-220867r852001_rule
  • SV-77865
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-22582r555086_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-22571r555087_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-220868 - SV-220868r877395_rule
RMF Control
MA-4
Severity
Medium
CCI
CCI-000877
Version
WN10-CC-000360
Vuln IDs
  • V-220868
  • V-63341
Rule IDs
  • SV-220868r877395_rule
  • SV-77831
Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks.
Checks: C-22583r555089_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-22572r555090_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 10 must be configured to prevent Windows apps from being activated by voice while the system is locked.
AC-11 - Medium - CCI-000056 - V-220869 - SV-220869r569187_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000056
Version
WN10-CC-000365
Vuln IDs
  • V-220869
  • V-94719
Rule IDs
  • SV-220869r569187_rule
  • SV-104549
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-22584r555092_chk

This setting requires v1903 or later of Windows 10; it is NA for prior versions. 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-22573r555093_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 10 must be disabled.
CM-7 - Medium - CCI-000381 - V-220870 - SV-220870r569187_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000370
Vuln IDs
  • V-220870
  • V-99559
Rule IDs
  • SV-220870r569187_rule
  • SV-108663
This policy controls whether a domain user can sign in using a convenience PIN to prevent enabling (Password Stuffer).
Checks: C-22585r555095_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-22574r555096_fix

Disable the convenience PIN sign-in. If this needs to be corrected 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.
CM-7 - Medium - CCI-000381 - V-220871 - SV-220871r642141_rule
RMF Control
CM-7
Severity
Medium
CCI
CCI-000381
Version
WN10-CC-000385
Vuln IDs
  • V-220871
  • V-99561
Rule IDs
  • SV-220871r642141_rule
  • SV-108665
This action secures Windows Ink, which contains applications and features oriented toward pen computing.
Checks: C-22586r642139_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-22575r642140_fix

Disable the convenience PIN sign-in. If this needs to be corrected, 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 10 should be configured to prevent users from receiving suggestions for third-party or additional applications.
CM-7 - Low - CCI-000381 - V-220872 - SV-220872r569187_rule
RMF Control
CM-7
Severity
Low
CCI
CCI-000381
Version
WN10-CC-000390
Vuln IDs
  • V-220872
  • V-99563
Rule IDs
  • SV-220872r569187_rule
  • SV-108667
Windows spotlight features may suggest apps and content from third-party software publishers in addition to Microsoft apps and content.
Checks: C-22587r555101_chk

If the following registry value does not exist or is not configured as specified, this is a finding. 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-22576r555102_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 10 Kernel (Direct Memory Access) DMA Protection must be enabled.
SC-4 - Medium - CCI-001090 - V-220902 - SV-220902r569187_rule
RMF Control
SC-4
Severity
Medium
CCI
CCI-001090
Version
WN10-EP-000310
Vuln IDs
  • V-220902
  • V-99557
Rule IDs
  • SV-220902r569187_rule
  • SV-108661
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-22617r555191_chk

This is NA prior to v1803 of Windows 10. 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-22606r555192_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-220903 - SV-220903r922056_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WN10-PK-000005
Vuln IDs
  • V-220903
  • V-63579
Rule IDs
  • SV-220903r922056_rule
  • SV-78069
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 the trust chain is established for server certificates issued from the DoD CAs.
Checks: C-22618r921919_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-22607r921920_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. Certificate bundles published by the 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-220904 - SV-220904r894652_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WN10-PK-000010
Vuln IDs
  • V-220904
  • V-63583
Rule IDs
  • SV-220904r894652_rule
  • SV-78073
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-22619r894652_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 certificate below is 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-22608r894327_fix

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

b
The DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
IA-5 - Medium - CCI-000185 - V-220905 - SV-220905r890436_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WN10-PK-000015
Vuln IDs
  • V-220905
  • V-63587
Rule IDs
  • SV-220905r890436_rule
  • SV-78077
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-22620r890434_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 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: DoD Interoperability Root CA 2 Thumbprint: 49CBE933151872E17C8EAE7F0ABA97FB610F6477 Valid to: Wednesday, November 16, 2024

Fix: F-22609r890435_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. 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.
IA-5 - Medium - CCI-000185 - V-220906 - SV-220906r890439_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000185
Version
WN10-PK-000020
Vuln IDs
  • V-220906
  • V-63589
Rule IDs
  • SV-220906r890439_rule
  • SV-78079
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-22621r890437_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 AM 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: 9B74964506C7ED9138070D08D5F8B969866560C8 NotAfter: 7/18/2025 9:56:22 AM

Fix: F-22610r890438_fix

Install the US DoD CCEB Interoperability Root CA cross-certificate on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 3 - US DoD CCEB Interoperability Root CA 2 9B74964506C7ED9138070D08D5F8B969866560C8 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. 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-220907 - SV-220907r877392_rule
RMF Control
AC-6
Severity
Medium
CCI
CCI-002235
Version
WN10-RG-000005
Vuln IDs
  • V-220907
  • V-63593
Rule IDs
  • SV-220907r877392_rule
  • SV-78083
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-22622r555206_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 10 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-22611r555207_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 10 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-220908 - SV-220908r569187_rule
RMF Control
IA-2
Severity
Medium
CCI
CCI-000764
Version
WN10-SO-000005
Vuln IDs
  • V-220908
  • V-63601
Rule IDs
  • SV-220908r569187_rule
  • SV-78091
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-22623r555209_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-22612r555210_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-220909 - SV-220909r569187_rule
RMF Control
IA-8
Severity
Medium
CCI
CCI-000804
Version
WN10-SO-000010
Vuln IDs
  • V-220909
  • V-63611
Rule IDs
  • SV-220909r569187_rule
  • SV-78101
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-22624r555212_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-22613r555213_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-220910 - SV-220910r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-SO-000015
Vuln IDs
  • V-220910
  • V-63617
Rule IDs
  • SV-220910r569187_rule
  • SV-78107
An account without a password can allow unauthorized access to a system as only the username would be required. Password policies should prevent accounts with blank passwords from existing on a system. However, if a local account with a blank password did exist, enabling this setting will prevent network access, limiting the account to local console logon only.
Checks: C-22625r555215_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-22614r555216_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-220911 - SV-220911r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-SO-000020
Vuln IDs
  • V-220911
  • V-63619
Rule IDs
  • SV-220911r569187_rule
  • SV-78109
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-22626r555218_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-22615r555219_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-220912 - SV-220912r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-SO-000025
Vuln IDs
  • V-220912
  • V-63625
Rule IDs
  • SV-220912r569187_rule
  • SV-78115
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-22627r555221_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-22616r555222_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-220913 - SV-220913r569187_rule
RMF Control
AU-12
Severity
Medium
CCI
CCI-000169
Version
WN10-SO-000030
Vuln IDs
  • V-220913
  • V-63635
Rule IDs
  • SV-220913r569187_rule
  • SV-78125
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-22628r555224_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-22617r555225_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-220914 - SV-220914r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN10-SO-000035
Vuln IDs
  • V-220914
  • V-63639
Rule IDs
  • SV-220914r916422_rule
  • SV-78129
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-22629r555227_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-22618r555228_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 when possible.
SC-8 - Medium - CCI-002418 - V-220915 - SV-220915r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN10-SO-000040
Vuln IDs
  • V-220915
  • V-63643
Rule IDs
  • SV-220915r916422_rule
  • SV-78133
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-22630r555230_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-22619r555231_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 when possible.
SC-8 - Medium - CCI-002418 - V-220916 - SV-220916r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN10-SO-000045
Vuln IDs
  • V-220916
  • V-63647
Rule IDs
  • SV-220916r916422_rule
  • SV-78137
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-22631r555233_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-22620r555234_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-220917 - SV-220917r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-SO-000050
Vuln IDs
  • V-220917
  • V-63653
Rule IDs
  • SV-220917r569187_rule
  • SV-78143
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 your system. A new password for the computer account will be generated every 30 days.
Checks: C-22632r555236_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-22621r555237_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-220918 - SV-220918r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-SO-000055
Vuln IDs
  • V-220918
  • V-63661
Rule IDs
  • SV-220918r569187_rule
  • SV-78151
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-22633r555239_chk

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-22622r555240_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-220919 - SV-220919r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN10-SO-000060
Vuln IDs
  • V-220919
  • V-63665
Rule IDs
  • SV-220919r916422_rule
  • SV-78155
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
Checks: C-22634r555242_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-22623r555243_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.
AC-11 - Medium - CCI-000057 - V-220920 - SV-220920r569187_rule
RMF Control
AC-11
Severity
Medium
CCI
CCI-000057
Version
WN10-SO-000070
Vuln IDs
  • V-220920
  • V-63669
Rule IDs
  • SV-220920r569187_rule
  • SV-78159
Unattended systems are susceptible to unauthorized use and should be locked when unattended. The screen saver should be set at a maximum of 15 minutes and be password protected. This protects critical and sensitive data from exposure to unauthorized personnel with physical access to the computer.
Checks: C-22635r555245_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-22624r555246_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-8 - Medium - CCI-000048 - V-220921 - SV-220921r569187_rule
RMF Control
AC-8
Severity
Medium
CCI
CCI-000048
Version
WN10-SO-000075
Vuln IDs
  • V-220921
  • V-63675
Rule IDs
  • SV-220921r569187_rule
  • SV-78165
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
Checks: C-22636r555248_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-22625r555249_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 dialog box title for the legal banner must be configured.
AC-8 - Low - CCI-000048 - V-220922 - SV-220922r569187_rule
RMF Control
AC-8
Severity
Low
CCI
CCI-000048
Version
WN10-SO-000080
Vuln IDs
  • V-220922
  • V-63681
Rule IDs
  • SV-220922r569187_rule
  • SV-78171
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
Checks: C-22637r555251_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 WN10-SO-000075.

Fix: F-22626r555252_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 WN10-SO-000075.

a
Caching of logon credentials must be limited.
CM-6 - Low - CCI-000366 - V-220923 - SV-220923r569187_rule
RMF Control
CM-6
Severity
Low
CCI
CCI-000366
Version
WN10-SO-000085
Vuln IDs
  • V-220923
  • V-63687
Rule IDs
  • SV-220923r569187_rule
  • SV-78177
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-22638r555254_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-22627r555255_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-220924 - SV-220924r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-SO-000095
Vuln IDs
  • V-220924
  • V-63697
Rule IDs
  • SV-220924r569187_rule
  • SV-78187
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-22639r555257_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-22628r555258_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-220925 - SV-220925r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN10-SO-000100
Vuln IDs
  • V-220925
  • V-63703
Rule IDs
  • SV-220925r916422_rule
  • SV-78193
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-22640r555260_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-22629r555261_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-220926 - SV-220926r877396_rule
RMF Control
IA-5
Severity
Medium
CCI
CCI-000197
Version
WN10-SO-000110
Vuln IDs
  • V-220926
  • V-63711
Rule IDs
  • SV-220926r877396_rule
  • SV-78201
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-22641r555263_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-22630r555264_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-220927 - SV-220927r916422_rule
RMF Control
SC-8
Severity
Medium
CCI
CCI-002418
Version
WN10-SO-000120
Vuln IDs
  • V-220927
  • V-63719
Rule IDs
  • SV-220927r916422_rule
  • SV-78209
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-22642r555266_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-22631r555267_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-220928 - SV-220928r569187_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN10-SO-000140
Vuln IDs
  • V-220928
  • V-63739
Rule IDs
  • SV-220928r569187_rule
  • SV-78229
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-22643r555269_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-22632r555270_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-220929 - SV-220929r569187_rule
RMF Control
CM-6
Severity
High
CCI
CCI-000366
Version
WN10-SO-000145
Vuln IDs
  • V-220929
  • V-63745
Rule IDs
  • SV-220929r569187_rule
  • SV-78235
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-22644r555272_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-22633r555273_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-220930 - SV-220930r569187_rule
RMF Control
SC-4
Severity
High
CCI
CCI-001090
Version
WN10-SO-000150
Vuln IDs
  • V-220930
  • V-63749
Rule IDs
  • SV-220930r569187_rule
  • SV-78239
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-22645r555275_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-22634r555276_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-220931 - SV-220931r569187_rule
RMF Control
CM-6
Severity
Medium
CCI
CCI-000366
Version
WN10-SO-000160
Vuln IDs
  • V-220931
  • V-63755
Rule IDs
  • SV-220931r569187_rule
  • SV-78245