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Windows 10 Security Technical Implementation Guide

V1R15 · · · Published 26 Jul 2019 · 213 rules
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The Windows 10 Security Technical Implementation Guide (STIG) is published as a tool to improve the security of Department of Defense (DoD) information systems. Comments or proposed revisions to this document should be sent via e-mail to the following address: disa.stig_spt@mail.mil.
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b
Domain-joined systems must use Windows 10 Enterprise Edition 64-bit version.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-00-000005
Vuln IDs
V-63319
Rule IDs
SV-77809r3_rule
Features such as Credential Guard use virtualization based security to protect information that could be used in credential theft attacks if compromised. There are a number of system requirements that must be met in order for Credential Guard to be configured and enabled properly. Virtualization based security and Credential Guard are only available with Windows 10 Enterprise 64-bit version.
Fix: F-69237r2_fix

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

b
Users must be prevented from changing installation options.
RMF Control
CM-11
Severity
M
CCI
CCI-001812
Version
WN10-CC-000310
Vuln IDs
V-63321
Rule IDs
SV-77811r1_rule
Installation options for applications are typically controlled by administrators. This setting prevents users from changing installation options that may bypass security features.
Fix: F-69239r1_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.
RMF Control
CM-11
Severity
H
CCI
CCI-001812
Version
WN10-CC-000315
Vuln IDs
V-63325
Rule IDs
SV-77815r1_rule
Standard user accounts must not be granted elevated privileges. Enabling Windows Installer to elevate privileges when installing applications can allow malicious persons and applications to gain full control of a system.
Fix: F-69243r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000320
Vuln IDs
V-63329
Rule IDs
SV-77819r1_rule
Web-based programs may attempt to install malicious software on a system. Ensuring users are notified if a web-based program attempts to install software allows them to refuse the installation.
Fix: F-69245r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000325
Vuln IDs
V-63333
Rule IDs
SV-77823r1_rule
Windows can be configured to automatically sign the user back in after a Windows Update restart. Some protections are in place to help ensure this is done in a secure fashion; however, disabling this will prevent the caching of credentials for this purpose and also ensure the user is aware of the restart.
Fix: F-69251r1_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".

c
The Windows Remote Management (WinRM) client must not use Basic authentication.
RMF Control
MA-4
Severity
H
CCI
CCI-000877
Version
WN10-CC-000330
Vuln IDs
V-63335
Rule IDs
SV-77825r1_rule
Basic authentication uses plain text passwords that could be used to compromise a system.
Fix: F-69255r1_fix

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

b
Windows 10 information systems must use BitLocker to encrypt all disks to protect the confidentiality and integrity of all information at rest.
RMF Control
SC-28
Severity
M
CCI
CCI-001199
Version
WN10-00-000030
Vuln IDs
V-63337
Rule IDs
SV-77827r4_rule
If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can remove non-volatile memory and read it directly, thereby circumventing operating system controls. Encrypting the data ensures that confidentiality is protected even when the operating system is not running.
Fix: F-100987r1_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
The Windows Remote Management (WinRM) client must not allow unencrypted traffic.
RMF Control
MA-4
Severity
M
CCI
CCI-002890
Version
WN10-CC-000335
Vuln IDs
V-63339
Rule IDs
SV-77829r1_rule
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.
Fix: F-69259r1_fix

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

b
The Windows Remote Management (WinRM) client must not use Digest authentication.
RMF Control
MA-4
Severity
M
CCI
CCI-000877
Version
WN10-CC-000340
Vuln IDs
V-63341
Rule IDs
SV-77831r1_rule
Digest authentication is not as strong as other options and may be subject to man-in-the-middle attacks.
Fix: F-69263r1_fix

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

c
The Windows Remote Management (WinRM) service must not use Basic authentication.
RMF Control
MA-4
Severity
H
CCI
CCI-000877
Version
WN10-CC-000345
Vuln IDs
V-63347
Rule IDs
SV-77837r1_rule
Basic authentication uses plain text passwords that could be used to compromise a system.
Fix: F-69265r1_fix

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

c
Windows 10 systems must be maintained at a supported servicing level.
RMF Control
CM-6
Severity
H
CCI
CCI-000366
Version
WN10-00-000040
Vuln IDs
V-63349
Rule IDs
SV-77839r9_rule
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 semi-annual basis with an estimated support timeframe of 18 to 30 months depending on the release. Support for previously released versions has been extended for Enterprise editions. A separate servicing branch intended for special purpose systems is the Long-Term Servicing Channel (LTSC, formerly Branch - LTSB) which will receive security updates for 10 years but excludes feature updates.
Fix: F-98031r2_fix

Update systems on the Semi-Annual Channel to "Microsoft Windows Version 1703 (OS Build 15063.0)" or greater. It is recommended systems be upgraded to the most recently released version. Special purpose systems using the Long-Term Servicing Branch\Channel (LTSC\B) may be at the following versions: v1507 (Build 10240) v1607 (Build 14393) v1809 (Build 17763)

c
Local volumes must be formatted using NTFS.
RMF Control
AC-3
Severity
H
CCI
CCI-000213
Version
WN10-00-000050
Vuln IDs
V-63353
Rule IDs
SV-77843r2_rule
The ability to set access permissions and auditing is critical to maintaining the security and proper access controls of a system. To support this, volumes must be formatted using the NTFS file system.
Fix: F-69273r1_fix

Format all local volumes to use NTFS.

b
The Windows Remote Management (WinRM) service must not allow unencrypted traffic.
RMF Control
MA-4
Severity
M
CCI
CCI-002890
Version
WN10-CC-000350
Vuln IDs
V-63369
Rule IDs
SV-77859r1_rule
Unencrypted remote access to a system can allow sensitive information to be compromised. Windows remote management connections must be encrypted to prevent this.
Fix: F-69289r1_fix

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

b
Accounts must be configured to require password expiration.
RMF Control
IA-5
Severity
M
CCI
CCI-000199
Version
WN10-00-000090
Vuln IDs
V-63371
Rule IDs
SV-77861r1_rule
Passwords that do not expire increase exposure with a greater probability of being discovered or cracked.
Fix: F-69291r1_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
The Windows Remote Management (WinRM) service must not store RunAs credentials.
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-CC-000355
Vuln IDs
V-63375
Rule IDs
SV-77865r1_rule
Storage of administrative credentials could allow unauthorized access. Disallowing the storage of RunAs credentials for Windows Remote Management will prevent them from being used with plug-ins.
Fix: F-69293r1_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".

c
Internet Information System (IIS) or its subcomponents must not be installed on a workstation.
RMF Control
CM-7
Severity
H
CCI
CCI-000381
Version
WN10-00-000100
Vuln IDs
V-63377
Rule IDs
SV-77867r1_rule
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.
Fix: F-69297r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000382
Version
WN10-00-000105
Vuln IDs
V-63381
Rule IDs
SV-77871r1_rule
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Fix: F-69301r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-00-000110
Vuln IDs
V-63383
Rule IDs
SV-77873r1_rule
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Fix: F-69305r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000382
Version
WN10-00-000115
Vuln IDs
V-63385
Rule IDs
SV-77875r1_rule
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Fix: F-69307r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000382
Version
WN10-00-000120
Vuln IDs
V-63389
Rule IDs
SV-77879r1_rule
Some protocols and services do not support required security features, such as encrypting passwords or traffic.
Fix: F-69313r1_fix

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

b
Windows 10 account lockout duration must be configured to 15 minutes or greater.
RMF Control
AC-7
Severity
M
CCI
CCI-002238
Version
WN10-AC-000005
Vuln IDs
V-63405
Rule IDs
SV-77895r2_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the amount of time that an account will remain locked after the specified number of failed logon attempts.
Fix: F-81277r1_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.
RMF Control
AC-7
Severity
M
CCI
CCI-000044
Version
WN10-AC-000010
Vuln IDs
V-63409
Rule IDs
SV-77899r1_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. The higher this value is, the less effective the account lockout feature will be in protecting the local system. The number of bad logon attempts must be reasonably small to minimize the possibility of a successful password attack, while allowing for honest errors made during a normal user logon.
Fix: F-69337r1_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.
RMF Control
AC-7
Severity
M
CCI
CCI-000044
Version
WN10-AC-000015
Vuln IDs
V-63413
Rule IDs
SV-77903r1_rule
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that must pass after failed logon attempts before the counter is reset to 0. The smaller this value is, the less effective the account lockout feature will be in protecting the local system.
Fix: F-69341r1_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.
RMF Control
IA-5
Severity
M
CCI
CCI-000200
Version
WN10-AC-000020
Vuln IDs
V-63415
Rule IDs
SV-77905r2_rule
A system is more vulnerable to unauthorized access when system users recycle the same password several times without being required to change a password to a unique password on a regularly scheduled basis. This enables users to effectively negate the purpose of mandating periodic password changes. The default value is 24 for Windows domain systems. DoD has decided this is the appropriate value for all Windows systems.
Fix: F-69343r1_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.
RMF Control
IA-5
Severity
M
CCI
CCI-000199
Version
WN10-AC-000025
Vuln IDs
V-63419
Rule IDs
SV-77909r1_rule
The longer a password is in use, the greater the opportunity for someone to gain unauthorized knowledge of the passwords. Scheduled changing of passwords hinders the ability of unauthorized system users to crack passwords and gain access to a system.
Fix: F-69347r1_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.
RMF Control
IA-5
Severity
M
CCI
CCI-000198
Version
WN10-AC-000030
Vuln IDs
V-63421
Rule IDs
SV-77911r1_rule
Permitting passwords to be changed in immediate succession within the same day allows users to cycle passwords through their history database. This enables users to effectively negate the purpose of mandating periodic password changes.
Fix: F-69349r1_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.
RMF Control
IA-5
Severity
M
CCI
CCI-000205
Version
WN10-AC-000035
Vuln IDs
V-63423
Rule IDs
SV-77913r1_rule
Information systems not protected with strong password schemes (including passwords of minimum length) provide the opportunity for anyone to crack the password, thus gaining access to the system and compromising the device, information, or the local network.
Fix: F-69351r1_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.
RMF Control
IA-5
Severity
M
CCI
CCI-000192
Version
WN10-AC-000040
Vuln IDs
V-63427
Rule IDs
SV-77917r1_rule
The use of complex passwords increases their strength against guessing and brute-force attacks. This setting configures the system to verify that newly created passwords conform to the Windows password complexity policy.
Fix: F-69355r1_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.
RMF Control
IA-5
Severity
H
CCI
CCI-000196
Version
WN10-AC-000045
Vuln IDs
V-63429
Rule IDs
SV-77919r1_rule
Storing passwords using reversible encryption is essentially the same as storing clear-text versions of the passwords. For this reason, this policy must never be enabled.
Fix: F-69357r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000005
Vuln IDs
V-63431
Rule IDs
SV-77921r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Credential validation records events related to validation tests on credentials for a user account logon.
Fix: F-69359r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000010
Vuln IDs
V-63435
Rule IDs
SV-77925r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Credential validation records events related to validation tests on credentials for a user account logon.
Fix: F-69363r1_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 - Other Account Management Events successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000020
Vuln IDs
V-63441
Rule IDs
SV-77931r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Other Account Management records events such as the access of a password hash or the Password Policy Checking API being called.
Fix: F-69369r1_fix

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

b
The system must be configured to audit Account Management - Security Group Management successes.
RMF Control
AC-2
Severity
M
CCI
CCI-000018
Version
WN10-AU-000030
Vuln IDs
V-63445
Rule IDs
SV-77935r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Security Group Management records events such as creating, deleting or changing of security groups, including changes in group members.
Fix: F-69373r1_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.
RMF Control
AC-2
Severity
M
CCI
CCI-000018
Version
WN10-AU-000035
Vuln IDs
V-63447
Rule IDs
SV-77937r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. User Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling user accounts.
Fix: F-69375r1_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.
RMF Control
AC-2
Severity
M
CCI
CCI-000018
Version
WN10-AU-000040
Vuln IDs
V-63449
Rule IDs
SV-77939r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. User Account Management records events such as creating, changing, deleting, renaming, disabling, or enabling user accounts.
Fix: F-69377r1_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 - Process Creation successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000050
Vuln IDs
V-63453
Rule IDs
SV-77943r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Process creation records events related to the creation of a process and the source.
Fix: F-69381r1_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 successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000055
Vuln IDs
V-63455
Rule IDs
SV-77945r3_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Account Lockout events can be used to identify potentially malicious logon attempts.
Fix: F-69383r3_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 "Success" selected.

b
The system must be configured to audit Logon/Logoff - Logoff successes.
RMF Control
AC-17
Severity
M
CCI
CCI-000067
Version
WN10-AU-000065
Vuln IDs
V-63459
Rule IDs
SV-77951r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Logoff records user logoffs. If this is an interactive logoff, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.
Fix: F-69387r1_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.
RMF Control
AC-17
Severity
M
CCI
CCI-000067
Version
WN10-AU-000070
Vuln IDs
V-63463
Rule IDs
SV-77953r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Logon records user logons. If this is an interactive logon, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.
Fix: F-69391r1_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.
RMF Control
AC-17
Severity
M
CCI
CCI-000067
Version
WN10-AU-000075
Vuln IDs
V-63467
Rule IDs
SV-77957r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Logon records user logons. If this is an interactive logon, it is recorded on the local system. If it is to a network share, it is recorded on the system accessed.
Fix: F-69395r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000080
Vuln IDs
V-63469
Rule IDs
SV-77959r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Special Logon records special logons which have administrative privileges and can be used to elevate processes.
Fix: F-69399r1_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
The system must be configured to audit Policy Change - Audit Policy Change failures.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000095
Vuln IDs
V-63475
Rule IDs
SV-77965r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Policy Change records events related to changes in audit policy.
Fix: F-69405r2_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 "Failure" selected.

b
The system must be configured to audit Policy Change - Audit Policy Change successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000100
Vuln IDs
V-63479
Rule IDs
SV-77969r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Policy Change records events related to changes in audit policy.
Fix: F-69409r2_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000105
Vuln IDs
V-63481
Rule IDs
SV-77971r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Authentication Policy Change records events related to changes in authentication policy including Kerberos policy and Trust changes.
Fix: F-69411r1_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 Privilege Use - Sensitive Privilege Use failures.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000110
Vuln IDs
V-63483
Rule IDs
SV-77973r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Sensitive Privilege Use records events related to use of sensitive privileges, such as "Act as part of the operating system" or "Debug programs".
Fix: F-69413r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000115
Vuln IDs
V-63487
Rule IDs
SV-77977r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Sensitive Privilege Use records events related to use of sensitive privileges, such as "Act as part of the operating system" or "Debug programs".
Fix: F-69417r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000120
Vuln IDs
V-63491
Rule IDs
SV-77981r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. IPSec Driver records events related to the IPSec Driver such as dropped packets.
Fix: F-69421r1_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 - IPSec Driver successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000125
Vuln IDs
V-63495
Rule IDs
SV-77985r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. IPSec Driver records events related to the IPSec Driver such as dropped packets.
Fix: F-69425r1_fix

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

b
The system must be configured to audit System - Other System Events successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000130
Vuln IDs
V-63499
Rule IDs
SV-77989r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Other System Events records information related to cryptographic key operations and the Windows Firewall service.
Fix: F-69429r2_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000135
Vuln IDs
V-63503
Rule IDs
SV-77993r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Audit Other System Events records information related to cryptographic key operations and the Windows Firewall service.
Fix: F-69433r2_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000140
Vuln IDs
V-63507
Rule IDs
SV-77997r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Security State Change records events related to changes in the security state, such as startup and shutdown of the system.
Fix: F-69437r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000150
Vuln IDs
V-63513
Rule IDs
SV-78003r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Security System Extension records events related to extension code being loaded by the security subsystem.
Fix: F-69443r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000155
Vuln IDs
V-63515
Rule IDs
SV-78005r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. System Integrity records events related to violations of integrity to the security subsystem.
Fix: F-69445r1_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.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000160
Vuln IDs
V-63517
Rule IDs
SV-78007r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. System Integrity records events related to violations of integrity to the security subsystem.
Fix: F-69447r1_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.
RMF Control
AU-4
Severity
M
CCI
CCI-001849
Version
WN10-AU-000500
Vuln IDs
V-63519
Rule IDs
SV-78009r1_rule
Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.
Fix: F-69449r1_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.
RMF Control
AU-4
Severity
M
CCI
CCI-001849
Version
WN10-AU-000505
Vuln IDs
V-63523
Rule IDs
SV-78013r2_rule
Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.
Fix: F-86735r1_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.
RMF Control
AU-4
Severity
M
CCI
CCI-001849
Version
WN10-AU-000510
Vuln IDs
V-63527
Rule IDs
SV-78017r1_rule
Inadequate log size will cause the log to fill up quickly. This may prevent audit events from being recorded properly and require frequent attention by administrative personnel.
Fix: F-69457r1_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.
RMF Control
AU-9
Severity
M
CCI
CCI-000162
Version
WN10-AU-000515
Vuln IDs
V-63533
Rule IDs
SV-78023r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. The Application event log may be susceptible to tampering if proper permissions are not applied.
Fix: F-69463r1_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.
RMF Control
AU-9
Severity
M
CCI
CCI-000162
Version
WN10-AU-000520
Vuln IDs
V-63537
Rule IDs
SV-78027r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. The Security event log may disclose sensitive information or be susceptible to tampering if proper permissions are not applied.
Fix: F-69467r1_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.
RMF Control
AU-9
Severity
M
CCI
CCI-000162
Version
WN10-AU-000525
Vuln IDs
V-63541
Rule IDs
SV-78031r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. The System event log may be susceptible to tampering if proper permissions are not applied.
Fix: F-69471r1_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
The display of slide shows on the lock screen must be disabled.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000010
Vuln IDs
V-63549
Rule IDs
SV-78039r1_rule
Slide shows that are displayed on the lock screen could display sensitive information to unauthorized personnel. Turning off this feature will limit access to the information to a logged on user.
Fix: F-69479r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000020
Vuln IDs
V-63555
Rule IDs
SV-78045r1_rule
Configuring the system to disable IPv6 source routing protects against spoofing.
Fix: F-69485r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000025
Vuln IDs
V-63559
Rule IDs
SV-78049r1_rule
Configuring the system to disable IP source routing protects against spoofing.
Fix: F-69489r1_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.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-CC-000030
Vuln IDs
V-63563
Rule IDs
SV-78053r1_rule
Allowing ICMP redirect of routes can lead to traffic not being routed properly. When disabled, this forces ICMP to be routed via shortest path first.
Fix: F-69493r1_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.
RMF Control
SC-5
Severity
L
CCI
CCI-002385
Version
WN10-CC-000035
Vuln IDs
V-63567
Rule IDs
SV-78057r1_rule
Configuring the system to ignore name release requests, except from WINS servers, prevents a denial of service (DoS) attack. The DoS consists of sending a NetBIOS name release request to the server for each entry in the server's cache, causing a response delay in the normal operation of the servers WINS resolution capability.
Fix: F-69497r1_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
Insecure logons to an SMB server must be disabled.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000040
Vuln IDs
V-63569
Rule IDs
SV-78059r2_rule
Insecure guest logons allow unauthenticated access to shared folders. Shared resources on a system must require authentication to establish proper access.
Fix: F-69499r2_fix

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

b
Hardened UNC Paths must be defined to require mutual authentication and integrity for at least the \\*\SYSVOL and \\*\NETLOGON shares.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000050
Vuln IDs
V-63577
Rule IDs
SV-78067r1_rule
Additional security requirements are applied to Universal Naming Convention (UNC) paths specified in Hardened UNC paths before allowing access them. This aids in preventing tampering with or spoofing of connections to these paths.
Fix: F-69507r1_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Network Provider >> "Hardened UNC Paths" to "Enabled" with at least the following configured in "Hardened UNC Paths:" (click the "Show" button to display). Value Name: \\*\SYSVOL Value: RequireMutualAuthentication=1, RequireIntegrity=1 Value Name: \\*\NETLOGON Value: RequireMutualAuthentication=1, RequireIntegrity=1

b
The DoD Root CA certificates must be installed in the Trusted Root Store.
RMF Control
IA-5
Severity
M
CCI
CCI-000185
Version
WN10-PK-000005
Vuln IDs
V-63579
Rule IDs
SV-78069r4_rule
To ensure secure DoD websites and DoD-signed code are properly validated, the system must trust the DoD Root Certificate Authorities (CAs). The DoD root certificates will ensure that the trust chain is established for server certificates issued from the DoD CAs.
Fix: F-87307r1_fix

Install the DoD Root CA certificates. DoD Root CA 2 DoD Root CA 3 DoD Root CA 4 DoD Root CA 5 The InstallRoot tool is available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

b
Simultaneous connections to the Internet or a Windows domain must be limited.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000055
Vuln IDs
V-63581
Rule IDs
SV-78071r2_rule
Multiple network connections can provide additional attack vectors to a system and must be limited. The "Minimize the number of simultaneous connections to the Internet or a Windows Domain" setting prevents systems from automatically establishing multiple connections. When both wired and wireless connections are available, for example, the less preferred connection (typically wireless) will be disconnected.
Fix: F-69511r1_fix

The default behavior for "Minimize the number of simultaneous connections to the Internet or a Windows Domain" is "Enabled". If this needs to be corrected, configure the policy value for Computer Configuration >> Administrative Templates >> Network >> Windows Connection Manager >> "Minimize the number of simultaneous connections to the Internet or a Windows Domain" to "Enabled".

b
The External Root CA certificates must be installed in the Trusted Root Store on unclassified systems.
RMF Control
IA-5
Severity
M
CCI
CCI-000185
Version
WN10-PK-000010
Vuln IDs
V-63583
Rule IDs
SV-78073r3_rule
To ensure secure websites protected with External Certificate Authority (ECA) server certificates are properly validated, the system must trust the ECA Root CAs. The ECA root certificates will ensure the trust chain is established for server certificates issued from the External CAs. This requirement only applies to unclassified systems.
Fix: F-76981r2_fix

Install the ECA Root CA certificates on unclassified systems. ECA Root CA 2 ECA Root CA 4 The InstallRoot tool is available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

b
Connections to non-domain networks when connected to a domain authenticated network must be blocked.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000060
Vuln IDs
V-63585
Rule IDs
SV-78075r1_rule
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.
Fix: F-69515r1_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
The DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
RMF Control
IA-5
Severity
M
CCI
CCI-000185
Version
WN10-PK-000015
Vuln IDs
V-63587
Rule IDs
SV-78077r5_rule
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the DoD Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.
Fix: F-98441r3_fix

Install the DoD Interoperability Root CA cross-certificates on unclassified systems. Issued To - Issued By - Thumbprint DoD Root CA 2 - DoD Interoperability Root CA 1 - 22BBE981F0694D246CC1472ED2B021DC8540A22F DoD Root CA 3 - DoD Interoperability Root CA 2 - AC06108CA348CC03B53795C64BF84403C1DBD341 The certificates can be installed using the InstallRoot tool. The tool and user guide are available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

b
The US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificates Store on unclassified systems.
RMF Control
IA-5
Severity
M
CCI
CCI-000185
Version
WN10-PK-000020
Vuln IDs
V-63589
Rule IDs
SV-78079r4_rule
To ensure users do not experience denial of service when performing certificate-based authentication to DoD websites due to the system chaining to a root other than DoD Root CAs, the US DoD CCEB Interoperability Root CA cross-certificates must be installed in the Untrusted Certificate Store. This requirement only applies to unclassified systems.
Fix: F-98443r3_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 - 929BF3196896994C0A201DF4A5B71F603FEFBF2E The certificates can be installed using the InstallRoot tool. The tool and user guide are available on IASE at http://iase.disa.mil/pki-pke/Pages/tools.aspx.

b
Wi-Fi Sense must be disabled.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000065
Vuln IDs
V-63591
Rule IDs
SV-78081r2_rule
Wi-Fi Sense automatically connects the system to known hotspots and networks that contacts have shared. It also allows the sharing of the system's known networks to contacts. Automatically connecting to hotspots and shared networks can expose a system to unsecured or potentially malicious systems.
Fix: F-88431r2_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
Local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain systems.
RMF Control
SC-3
Severity
M
CCI
CCI-001084
Version
WN10-CC-000037
Vuln IDs
V-63597
Rule IDs
SV-78087r2_rule
A compromised local administrator account can provide means for an attacker to move laterally between domain systems. With User Account Control enabled, filtering the privileged token for built-in administrator accounts will prevent the elevated privileges of these accounts from being used over the network.
Fix: F-78099r3_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
The built-in administrator account must be disabled.
RMF Control
IA-2
Severity
M
CCI
CCI-000764
Version
WN10-SO-000005
Vuln IDs
V-63601
Rule IDs
SV-78091r1_rule
The built-in administrator account is a well-known account subject to attack. It also provides no accountability to individual administrators on a system. It must be disabled to prevent its use.
Fix: F-69531r1_fix

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

b
Early Launch Antimalware, Boot-Start Driver Initialization Policy must prevent boot drivers identified as bad.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000085
Vuln IDs
V-63607
Rule IDs
SV-78097r1_rule
Compromised boot drivers can introduce malware prior to protection mechanisms that load after initialization. The Early Launch Antimalware driver can limit allowed drivers based on classifications determined by the malware protection application. At a minimum, drivers determined to be bad must not be allowed.
Fix: F-69537r1_fix

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 this needs to be corrected or a more secure setting is desired, configure the policy value for Computer Configuration >> Administrative Templates >> System >> Early Launch Antimalware >> "Boot-Start Driver Initialization Policy" to "Not Configured" or "Enabled" with any option other than "All" selected.

b
Group Policy objects must be reprocessed even if they have not changed.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000090
Vuln IDs
V-63609
Rule IDs
SV-78099r1_rule
Enabling this setting and then selecting the "Process even if the Group Policy objects have not changed" option ensures that the policies will be reprocessed even if none have been changed. This way, any unauthorized changes are forced to match the domain-based group policy settings again.
Fix: F-69539r1_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
The built-in guest account must be disabled.
RMF Control
IA-8
Severity
M
CCI
CCI-000804
Version
WN10-SO-000010
Vuln IDs
V-63611
Rule IDs
SV-78101r1_rule
A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned.
Fix: F-69541r1_fix

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

b
Downloading print driver packages over HTTP must be prevented.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000100
Vuln IDs
V-63615
Rule IDs
SV-78105r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the computer from downloading print driver packages over HTTP.
Fix: F-69545r1_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
Local accounts with blank passwords must be restricted to prevent access from the network.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000015
Vuln IDs
V-63617
Rule IDs
SV-78107r1_rule
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.
Fix: F-69547r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000020
Vuln IDs
V-63619
Rule IDs
SV-78109r1_rule
The built-in administrator account is a well-known account subject to attack. Renaming this account to an unidentified name improves the protection of this account and the system.
Fix: F-69551r1_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
Web publishing and online ordering wizards must be prevented from downloading a list of providers.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000105
Vuln IDs
V-63621
Rule IDs
SV-78111r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents Windows from downloading a list of providers for the Web publishing and online ordering wizards.
Fix: F-69549r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000110
Vuln IDs
V-63623
Rule IDs
SV-78113r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting prevents the client computer from printing over HTTP, which allows the computer to print to printers on the intranet as well as the Internet.
Fix: F-69553r1_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
The built-in guest account must be renamed.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000025
Vuln IDs
V-63625
Rule IDs
SV-78115r1_rule
The built-in guest account is a well-known user account on all Windows systems and, as initially installed, does not require a password. This can allow access to system resources by unauthorized users. Renaming this account to an unidentified name improves the protection of this account and the system.
Fix: F-69555r1_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
Systems must at least attempt device authentication using certificates.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000115
Vuln IDs
V-63627
Rule IDs
SV-78117r1_rule
Using certificates to authenticate devices to the domain provides increased security over passwords. By default systems will attempt to authenticate using certificates and fall back to passwords if the domain controller does not support certificates for devices. This may also be configured to always use certificates for device authentication.
Fix: F-69557r1_fix

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

b
The network selection user interface (UI) must not be displayed on the logon screen.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000120
Vuln IDs
V-63629
Rule IDs
SV-78119r1_rule
Enabling interaction with the network selection UI allows users to change connections to available networks without signing into Windows.
Fix: F-69559r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000130
Vuln IDs
V-63633
Rule IDs
SV-78123r1_rule
The username is one part of logon credentials that could be used to gain access to a system. Preventing the enumeration of users limits this information to authorized personnel.
Fix: F-69565r1_fix

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

b
Audit policy using subcategories must be enabled.
RMF Control
AU-12
Severity
M
CCI
CCI-000169
Version
WN10-SO-000030
Vuln IDs
V-63635
Rule IDs
SV-78125r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. This setting allows administrators to enable more precise auditing capabilities.
Fix: F-69563r1_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.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000035
Vuln IDs
V-63639
Rule IDs
SV-78129r1_rule
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.
Fix: F-69567r1_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.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000040
Vuln IDs
V-63643
Rule IDs
SV-78133r1_rule
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted.
Fix: F-69573r1_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
Users must be prompted for a password on resume from sleep (on battery).
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-CC-000145
Vuln IDs
V-63645
Rule IDs
SV-78135r1_rule
Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (on battery).
Fix: F-69575r1_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
Outgoing secure channel traffic must be signed when possible.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000045
Vuln IDs
V-63647
Rule IDs
SV-78137r1_rule
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, outgoing secure channel traffic will be signed.
Fix: F-69577r1_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".

b
The user must be prompted for a password on resume from sleep (plugged in).
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-CC-000150
Vuln IDs
V-63649
Rule IDs
SV-78139r1_rule
Authentication must always be required when accessing a system. This setting ensures the user is prompted for a password on resume from sleep (plugged in).
Fix: F-69579r1_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.
RMF Control
SC-4
Severity
H
CCI
CCI-001090
Version
WN10-CC-000155
Vuln IDs
V-63651
Rule IDs
SV-78141r1_rule
Remote assistance allows another user to view or take control of the local session of a user. Solicited assistance is help that is specifically requested by the local user. This may allow unauthorized parties access to the resources on the computer.
Fix: F-69581r1_fix

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

a
The computer account password must not be prevented from being reset.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-SO-000050
Vuln IDs
V-63653
Rule IDs
SV-78143r1_rule
Computer account passwords are changed automatically on a regular basis. Disabling automatic password changes can make the system more vulnerable to malicious access. Frequent password changes can be a significant safeguard for your system. A new password for the computer account will be generated every 30 days.
Fix: F-69885r1_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".

b
Unauthenticated RPC clients must be restricted from connecting to the RPC server.
RMF Control
IA-3
Severity
M
CCI
CCI-001967
Version
WN10-CC-000165
Vuln IDs
V-63657
Rule IDs
SV-78147r1_rule
Configuring RPC to restrict unauthenticated RPC clients from connecting to the RPC server will prevent anonymous connections.
Fix: F-69585r1_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.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-CC-000170
Vuln IDs
V-63659
Rule IDs
SV-78149r2_rule
Control of credentials and the system must be maintained within the enterprise. Enabling this setting allows enterprise credentials to be used with modern style apps that support this, instead of Microsoft accounts.
Fix: F-69587r1_fix

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

a
The maximum age for machine account passwords must be configured to 30 days or less.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-SO-000055
Vuln IDs
V-63661
Rule IDs
SV-78151r1_rule
Computer account passwords are changed automatically on a regular basis. This setting controls the maximum password age that a machine account may have. This setting must be set to no more than 30 days, ensuring the machine changes its password monthly.
Fix: F-69589r1_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).

a
The Application Compatibility Program Inventory must be prevented from collecting data and sending the information to Microsoft.
RMF Control
CM-7
Severity
L
CCI
CCI-000381
Version
WN10-CC-000175
Vuln IDs
V-63663
Rule IDs
SV-78153r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Turning off this capability will prevent potentially sensitive information from being sent outside the enterprise and uncontrolled updates to the system. This setting will prevent the Program Inventory from collecting data about a system and sending the information to Microsoft.
Fix: F-69591r1_fix

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

b
The system must be configured to require a strong session key.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000060
Vuln IDs
V-63665
Rule IDs
SV-78155r1_rule
A computer connecting to a domain controller will establish a secure channel. Requiring strong session keys enforces 128-bit encryption between systems.
Fix: F-69593r1_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".

c
Autoplay must be turned off for non-volume devices.
RMF Control
CM-7
Severity
H
CCI
CCI-001764
Version
WN10-CC-000180
Vuln IDs
V-63667
Rule IDs
SV-78157r1_rule
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).
Fix: F-69595r1_fix

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

b
The machine inactivity limit must be set to 15 minutes, locking the system with the screensaver.
RMF Control
AC-11
Severity
M
CCI
CCI-000057
Version
WN10-SO-000070
Vuln IDs
V-63669
Rule IDs
SV-78159r2_rule
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.
Fix: F-88429r1_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.

c
The default autorun behavior must be configured to prevent autorun commands.
RMF Control
CM-7
Severity
H
CCI
CCI-001764
Version
WN10-CC-000185
Vuln IDs
V-63671
Rule IDs
SV-78161r1_rule
Allowing autorun commands to execute may introduce malicious code to a system. Configuring this setting prevents autorun commands from executing.
Fix: F-69599r1_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.
RMF Control
CM-7
Severity
H
CCI
CCI-001764
Version
WN10-CC-000190
Vuln IDs
V-63673
Rule IDs
SV-78163r1_rule
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.
Fix: F-69603r1_fix

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

b
The required legal notice must be configured to display before console logon.
RMF Control
AC-8
Severity
M
CCI
CCI-000048
Version
WN10-SO-000075
Vuln IDs
V-63675
Rule IDs
SV-78165r2_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
Fix: F-69601r2_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.

b
Enhanced anti-spoofing for facial recognition must be enabled on Window 10.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000195
Vuln IDs
V-63677
Rule IDs
SV-78167r3_rule
Enhanced anti-spoofing provides additional protections when using facial recognition with devices that support it.
Fix: F-88435r1_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".

b
Administrator accounts must not be enumerated during elevation.
RMF Control
SC-3
Severity
M
CCI
CCI-001084
Version
WN10-CC-000200
Vuln IDs
V-63679
Rule IDs
SV-78169r1_rule
Enumeration of administrator accounts when elevating can provide part of the logon information to an unauthorized user. This setting configures the system to always require users to type in a username and password to elevate a running application.
Fix: F-69607r1_fix

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

a
The Windows dialog box title for the legal banner must be configured.
RMF Control
AC-8
Severity
L
CCI
CCI-000048
Version
WN10-SO-000080
Vuln IDs
V-63681
Rule IDs
SV-78171r1_rule
Failure to display the logon banner prior to a logon attempt will negate legal proceedings resulting from unauthorized access to system resources.
Fix: F-69609r1_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.

b
Windows Telemetry must not be configured to Full.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000205
Vuln IDs
V-63683
Rule IDs
SV-78173r3_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Limiting this capability will prevent potentially sensitive information from being sent outside the enterprise. The "Security" option for Telemetry configures the lowest amount of data, effectively none outside of the Malicious Software Removal Tool (MSRT), Defender and telemetry client settings. "Basic" sends basic diagnostic and usage data and may be required to support some Microsoft services. "Enhanced" includes additional information on how Windows and apps are used and advanced reliability data. Windows Analytics can use a "limited enhanced" level to provide information such as health data for devices. This requires the configuration of an additional setting available with v1709 and later of Windows 10.
Fix: F-89003r2_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-82145 must also be configured to limit the Enhanced diagnostic data to the minimum required by Windows Analytics.

b
The Windows Defender SmartScreen for Explorer must be enabled.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000210
Vuln IDs
V-63685
Rule IDs
SV-78175r6_rule
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.
Fix: F-98461r1_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.

a
Caching of logon credentials must be limited.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-SO-000085
Vuln IDs
V-63687
Rule IDs
SV-78177r1_rule
The default Windows configuration caches the last logon credentials for users who log on interactively to a system. This feature is provided for system availability reasons, such as the user's machine being disconnected from the network or domain controllers being unavailable. Even though the credential cache is well-protected, if a system is attacked, an unauthorized individual may isolate the password to a domain user account using a password-cracking program and gain access to the domain.
Fix: F-69615r1_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
Explorer Data Execution Prevention must be enabled.
RMF Control
SI-16
Severity
M
CCI
CCI-002824
Version
WN10-CC-000215
Vuln IDs
V-63689
Rule IDs
SV-78179r1_rule
Data Execution Prevention (DEP) provides additional protection by performing checks on memory to help prevent malicious code from running. This setting will prevent Data Execution Prevention from being turned off for File Explorer.
Fix: F-69617r1_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.
RMF Control
SC-5
Severity
L
CCI
CCI-002385
Version
WN10-CC-000220
Vuln IDs
V-63691
Rule IDs
SV-78181r3_rule
Legacy plug-in applications may continue to function when a File Explorer session has become corrupt. Disabling this feature will prevent this.
Fix: F-78109r3_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000225
Vuln IDs
V-63695
Rule IDs
SV-78185r1_rule
The shell protocol will limit the set of folders applications can open when run in protected mode. Restricting files an application can open, to a limited set of folders, increases the security of Windows.
Fix: F-69623r1_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
The Smart Card removal option must be configured to Force Logoff or Lock Workstation.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000095
Vuln IDs
V-63697
Rule IDs
SV-78187r1_rule
Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is removed will ensure the system is inaccessible when unattended.
Fix: F-69625r1_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
Users must not be allowed to ignore Windows Defender SmartScreen filter warnings for malicious websites in Microsoft Edge.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000230
Vuln IDs
V-63699
Rule IDs
SV-78189r6_rule
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.
Fix: F-98463r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000235
Vuln IDs
V-63701
Rule IDs
SV-78191r6_rule
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.
Fix: F-98465r1_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
The Windows SMB client must be configured to always perform SMB packet signing.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000100
Vuln IDs
V-63703
Rule IDs
SV-78193r1_rule
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB client will only communicate with an SMB server that performs SMB packet signing.
Fix: F-69629r1_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
InPrivate browsing in Microsoft Edge must be disabled.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000240
Vuln IDs
V-63705
Rule IDs
SV-78195r4_rule
The InPrivate browsing feature in Microsoft Edge prevents the storing of history, cookies, temporary Internet files, or other data. Disabling this feature maintains this data for review as necessary.
Fix: F-83243r1_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Allow InPrivate browsing" to "Disabled".

b
The Windows SMB client must be enabled to perform SMB packet signing when possible.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000105
Vuln IDs
V-63707
Rule IDs
SV-78197r1_rule
The server message block (SMB) protocol provides the basis for many network operations. If this policy is enabled, the SMB client will request packet signing when communicating with an SMB server that is enabled or required to perform SMB packet signing.
Fix: F-69635r1_fix

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

b
The password manager function in the Edge browser must be disabled.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000245
Vuln IDs
V-63709
Rule IDs
SV-78199r4_rule
Passwords save locally for re-use when browsing may be subject to compromise. Disabling the Edge password manager will prevent this for the browser.
Fix: F-83245r1_fix

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

b
Unencrypted passwords must not be sent to third-party SMB Servers.
RMF Control
IA-5
Severity
M
CCI
CCI-000197
Version
WN10-SO-000110
Vuln IDs
V-63711
Rule IDs
SV-78201r1_rule
Some non-Microsoft SMB servers only support unencrypted (plain text) password authentication. Sending plain text passwords across the network, when authenticating to an SMB server, reduces the overall security of the environment. Check with the vendor of the SMB server to see if there is a way to support encrypted password authentication.
Fix: F-69639r1_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 Defender SmartScreen filter for Microsoft Edge must be enabled.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000250
Vuln IDs
V-63713
Rule IDs
SV-78203r6_rule
The Windows Defender SmartScreen filter in Microsoft Edge provides warning messages and blocks potentially malicious websites.
Fix: F-98467r1_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
The Windows SMB server must be configured to always perform SMB packet signing.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000120
Vuln IDs
V-63719
Rule IDs
SV-78209r1_rule
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will only communicate with an SMB client that performs SMB packet signing.
Fix: F-69647r1_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".

b
Windows 10 must be configured to require a minimum pin length of six characters or greater.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000260
Vuln IDs
V-63721
Rule IDs
SV-78211r6_rule
Windows allows the use of PINs as well as biometrics for authentication without sending a password to a network or website where it could be compromised. Longer minimum PIN lengths increase the available combinations an attacker would have to attempt. Shorter minimum length significantly reduces the strength.
Fix: F-98469r2_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
The Windows SMB server must perform SMB packet signing when possible.
RMF Control
SC-8
Severity
M
CCI
CCI-002418
Version
WN10-SO-000125
Vuln IDs
V-63723
Rule IDs
SV-78213r1_rule
The server message block (SMB) protocol provides the basis for many network operations. Digitally signed SMB packets aid in preventing man-in-the-middle attacks. If this policy is enabled, the SMB server will negotiate SMB packet signing as requested by the client.
Fix: F-69651r1_fix

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

b
Passwords must not be saved in the Remote Desktop Client.
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-CC-000270
Vuln IDs
V-63729
Rule IDs
SV-78219r1_rule
Saving passwords in the Remote Desktop Client could allow an unauthorized user to establish a remote desktop session to another system. The system must be configured to prevent users from saving passwords in the Remote Desktop Client.
Fix: F-69657r1_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.
RMF Control
SC-4
Severity
M
CCI
CCI-001090
Version
WN10-CC-000275
Vuln IDs
V-63731
Rule IDs
SV-78221r1_rule
Preventing users from sharing the local drives on their client computers to Remote Session Hosts that they access helps reduce possible exposure of sensitive data.
Fix: F-69659r1_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.
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-CC-000280
Vuln IDs
V-63733
Rule IDs
SV-78223r1_rule
This setting controls the ability of users to supply passwords automatically as part of their remote desktop connection. Disabling this setting would allow anyone to use the stored credentials in a connection item to connect to the terminal server.
Fix: F-69661r1_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.
RMF Control
AC-17
Severity
M
CCI
CCI-001453
Version
WN10-CC-000285
Vuln IDs
V-63737
Rule IDs
SV-78227r1_rule
Allowing unsecure RPC communication exposes the system to man in the middle attacks and data disclosure attacks. A man in the middle attack occurs when an intruder captures packets between a client and server and modifies them before allowing the packets to be exchanged. Usually the attacker will modify the information in the packets in an attempt to cause either the client or server to reveal sensitive information.
Fix: F-69665r1_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.
RMF Control
AC-17
Severity
M
CCI
CCI-000068
Version
WN10-CC-000290
Vuln IDs
V-63741
Rule IDs
SV-78231r1_rule
Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Remote Desktop Services sessions in both directions.
Fix: F-69669r1_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.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000295
Vuln IDs
V-63743
Rule IDs
SV-78233r1_rule
Attachments from RSS feeds may not be secure. This setting will prevent attachments from being downloaded from RSS feeds.
Fix: F-69671r1_fix

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

c
Anonymous enumeration of SAM accounts must not be allowed.
RMF Control
CM-6
Severity
H
CCI
CCI-000366
Version
WN10-SO-000145
Vuln IDs
V-63745
Rule IDs
SV-78235r1_rule
Anonymous enumeration of SAM accounts allows anonymous log on users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system.
Fix: F-69673r1_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".

b
Basic authentication for RSS feeds over HTTP must not be used.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000300
Vuln IDs
V-63747
Rule IDs
SV-78237r1_rule
Basic authentication uses plain text passwords that could be used to compromise a system.
Fix: F-69675r1_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".

c
Anonymous enumeration of shares must be restricted.
RMF Control
SC-4
Severity
H
CCI
CCI-001090
Version
WN10-SO-000150
Vuln IDs
V-63749
Rule IDs
SV-78239r1_rule
Allowing anonymous logon users (null session connections) to list all account names and enumerate all shared resources can provide a map of potential points to attack the system.
Fix: F-69677r1_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
Indexing of encrypted files must be turned off.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000305
Vuln IDs
V-63751
Rule IDs
SV-78241r1_rule
Indexing of encrypted files may expose sensitive data. This setting prevents encrypted files from being indexed.
Fix: F-69679r1_fix

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

b
The system must be configured to prevent anonymous users from having the same rights as the Everyone group.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000160
Vuln IDs
V-63755
Rule IDs
SV-78245r1_rule
Access by anonymous users must be restricted. If this setting is enabled, then anonymous users have the same rights and permissions as the built-in Everyone group. Anonymous users must not have these permissions or rights.
Fix: F-69683r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Let Everyone permissions apply to anonymous users" to "Disabled".

c
Anonymous access to Named Pipes and Shares must be restricted.
RMF Control
SC-4
Severity
H
CCI
CCI-001090
Version
WN10-SO-000165
Vuln IDs
V-63759
Rule IDs
SV-78249r1_rule
Allowing anonymous access to named pipes or shares provides the potential for unauthorized system access. This setting restricts access to those defined in "Network access: Named Pipes that can be accessed anonymously" and "Network access: Shares that can be accessed anonymously", both of which must be blank under other requirements.
Fix: F-69687r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Restrict anonymous access to Named Pipes and Shares" to "Enabled".

b
Services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity vs. authenticating anonymously.
RMF Control
IA-3
Severity
M
CCI
CCI-000778
Version
WN10-SO-000175
Vuln IDs
V-63763
Rule IDs
SV-78253r1_rule
Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed to authenticate anonymously vs. using the computer identity.
Fix: F-69691r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Allow Local System to use computer identity for NTLM" to "Enabled".

b
NTLM must be prevented from falling back to a Null session.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000180
Vuln IDs
V-63765
Rule IDs
SV-78255r1_rule
NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.
Fix: F-69693r1_fix

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

b
PKU2U authentication using online identities must be prevented.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000185
Vuln IDs
V-63767
Rule IDs
SV-78257r1_rule
PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-joined systems. Authentication will be centrally managed with Windows user accounts.
Fix: F-69695r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Allow PKU2U authentication requests to this computer to use online identities" to "Disabled".

b
Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.
RMF Control
IA-7
Severity
M
CCI
CCI-000803
Version
WN10-SO-000190
Vuln IDs
V-63795
Rule IDs
SV-78285r1_rule
Certain encryption types are no longer considered secure. This setting configures a minimum encryption type for Kerberos, preventing the use of the DES and RC4 encryption suites.
Fix: F-69723r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Configure encryption types allowed for Kerberos" to "Enabled" with only the following selected: AES128_HMAC_SHA1 AES256_HMAC_SHA1 Future encryption types

c
The system must be configured to prevent the storage of the LAN Manager hash of passwords.
RMF Control
IA-5
Severity
H
CCI
CCI-000196
Version
WN10-SO-000195
Vuln IDs
V-63797
Rule IDs
SV-78287r1_rule
The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords. This setting controls whether or not a LAN Manager hash of the password is stored in the SAM the next time the password is changed.
Fix: F-69725r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Do not store LAN Manager hash value on next password change" to "Enabled".

c
The LanMan authentication level must be set to send NTLMv2 response only, and to refuse LM and NTLM.
RMF Control
CM-6
Severity
H
CCI
CCI-000366
Version
WN10-SO-000205
Vuln IDs
V-63801
Rule IDs
SV-78291r1_rule
The Kerberos v5 authentication protocol is the default for authentication of users who are logging on to domain accounts. NTLM, which is less secure, is retained in later Windows versions for compatibility with clients and servers that are running earlier versions of Windows or applications that still use it. It is also used to authenticate logons to stand-alone computers that are running later versions.
Fix: F-69729r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: LAN Manager authentication level" to "Send NTLMv2 response only. Refuse LM & NTLM".

b
The system must be configured to the required LDAP client signing level.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000210
Vuln IDs
V-63803
Rule IDs
SV-78293r1_rule
This setting controls the signing requirements for LDAP clients. This setting must be set to Negotiate signing or Require signing, depending on the environment and type of LDAP server in use.
Fix: F-69731r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: LDAP client signing requirements" to "Negotiate signing" at a minimum.

b
The system must be configured to meet the minimum session security requirement for NTLM SSP based clients.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000215
Vuln IDs
V-63805
Rule IDs
SV-78295r1_rule
Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enabled to ensure the maximum security level.
Fix: F-69733r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Minimum session security for NTLM SSP based (including secure RPC) clients" to "Require NTLMv2 session security" and "Require 128-bit encryption" (all options selected).

b
The system must be configured to meet the minimum session security requirement for NTLM SSP based servers.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-SO-000220
Vuln IDs
V-63807
Rule IDs
SV-78297r1_rule
Microsoft has implemented a variety of security support providers for use with RPC sessions. All of the options must be enabled to ensure the maximum security level.
Fix: F-69735r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Minimum session security for NTLM SSP based (including secure RPC) servers" to "Require NTLMv2 session security" and "Require 128-bit encryption" (all options selected).

b
The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.
RMF Control
SC-13
Severity
M
CCI
CCI-002450
Version
WN10-SO-000230
Vuln IDs
V-63811
Rule IDs
SV-78301r1_rule
This setting ensures that the system uses algorithms that are FIPS-compliant for encryption, hashing, and signing. FIPS-compliant algorithms meet specific standards established by the U.S. Government and must be the algorithms used for all OS encryption functions.
Fix: F-69739r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing" to "Enabled".

a
The default permissions of global system objects must be increased.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-SO-000240
Vuln IDs
V-63815
Rule IDs
SV-78305r1_rule
Windows systems maintain a global list of shared system resources such as DOS device names, mutexes, and semaphores. Each type of object is created with a default DACL that specifies who can access the objects with what permissions. If this policy is enabled, the default DACL is stronger, allowing non-admin users to read shared objects, but not modify shared objects that they did not create.
Fix: F-69743r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System objects: Strengthen default permissions of internal system objects (e.g. Symbolic links)" to "Enabled".

b
User Account Control approval mode for the built-in Administrator must be enabled.
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-SO-000245
Vuln IDs
V-63817
Rule IDs
SV-78307r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the built-in Administrator account so that it runs in Admin Approval Mode.
Fix: F-69745r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Admin Approval Mode for the Built-in Administrator account" to "Enabled".

b
User Account Control must, at minimum, prompt administrators for consent on the secure desktop.
RMF Control
SC-3
Severity
M
CCI
CCI-001084
Version
WN10-SO-000250
Vuln IDs
V-63819
Rule IDs
SV-78309r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the elevation requirements for logged on administrators to complete a task that requires raised privileges.
Fix: F-69747r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode" to "Prompt for consent on the secure desktop".

b
User Account Control must automatically deny elevation requests for standard users.
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-SO-000255
Vuln IDs
V-63821
Rule IDs
SV-78311r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. Denying elevation requests from standard user accounts requires tasks that need elevation to be initiated by accounts with administrative privileges. This ensures correct accounts are used on the system for privileged tasks to help mitigate credential theft.
Fix: F-69749r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Behavior of the elevation prompt for standard users" to "Automatically deny elevation requests".

b
User Account Control must be configured to detect application installations and prompt for elevation.
RMF Control
SC-3
Severity
M
CCI
CCI-001084
Version
WN10-SO-000260
Vuln IDs
V-63825
Rule IDs
SV-78315r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting requires Windows to respond to application installation requests by prompting for credentials.
Fix: F-69753r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Detect application installations and prompt for elevation" to "Enabled".

b
User Account Control must only elevate UIAccess applications that are installed in secure locations.
RMF Control
SC-3
Severity
M
CCI
CCI-001084
Version
WN10-SO-000265
Vuln IDs
V-63827
Rule IDs
SV-78317r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures Windows to only allow applications installed in a secure location on the file system, such as the Program Files or the Windows\System32 folders, to run with elevated privileges.
Fix: F-69755r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Only elevate UIAccess applications that are installed in secure locations" to "Enabled".

b
User Account Control must run all administrators in Admin Approval Mode, enabling UAC.
RMF Control
IA-11
Severity
M
CCI
CCI-002038
Version
WN10-SO-000270
Vuln IDs
V-63829
Rule IDs
SV-78319r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting enables UAC.
Fix: F-69757r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Run all administrators in Admin Approval Mode" to "Enabled".

b
User Account Control must virtualize file and registry write failures to per-user locations.
RMF Control
SC-3
Severity
M
CCI
CCI-001084
Version
WN10-SO-000275
Vuln IDs
V-63831
Rule IDs
SV-78321r1_rule
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures non-UAC compliant applications to run in virtualized file and registry entries in per-user locations, allowing them to run.
Fix: F-69759r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "User Account Control: Virtualize file and registry write failures to per-user locations" to "Enabled".

b
The Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000005
Vuln IDs
V-63843
Rule IDs
SV-78333r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Access Credential Manager as a trusted caller" user right may be able to retrieve the credentials of other accounts from Credential Manager.
Fix: F-69771r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Access Credential Manager as a trusted caller" to be defined but containing no entries (blank).

b
The Access this computer from the network user right must only be assigned to the Administrators and Remote Desktop Users groups.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000010
Vuln IDs
V-63845
Rule IDs
SV-78335r3_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Access this computer from the network" user right may access resources on the system, and must be limited to those that require it.
Fix: F-81289r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Access this computer from the network" to only include the following groups or accounts: Administrators Remote Desktop Users

c
The Act as part of the operating system user right must not be assigned to any groups or accounts.
RMF Control
AC-6
Severity
H
CCI
CCI-002235
Version
WN10-UR-000015
Vuln IDs
V-63847
Rule IDs
SV-78337r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Act as part of the operating system" user right can assume the identity of any user and gain access to resources that user is authorized to access. Any accounts with this right can take complete control of a system.
Fix: F-69775r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Act as part of the operating system" to be defined but containing no entries (blank).

b
The Allow log on locally user right must only be assigned to the Administrators and Users groups.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000025
Vuln IDs
V-63851
Rule IDs
SV-78341r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. Accounts with the "Allow log on locally" user right can log on interactively to a system.
Fix: F-88439r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Allow log on locally" to only include the following groups or accounts: Administrators Users

b
The Back up files and directories user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000030
Vuln IDs
V-63853
Rule IDs
SV-78343r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Back up files and directories" user right can circumvent file and directory permissions and could allow access to sensitive data."
Fix: F-69781r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Back up files and directories" to only include the following groups or accounts: Administrators

b
The Change the system time user right must only be assigned to Administrators and Local Service.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000035
Vuln IDs
V-63855
Rule IDs
SV-78345r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Change the system time" user right can change the system time, which can impact authentication, as well as affect time stamps on event log entries.
Fix: F-69783r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Change the system time" to only include the following groups or accounts: Administrators LOCAL SERVICE

b
The Create a pagefile user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000040
Vuln IDs
V-63857
Rule IDs
SV-78347r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Create a pagefile" user right can change the size of a pagefile, which could affect system performance.
Fix: F-69785r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create a pagefile" to only include the following groups or accounts: Administrators

c
The Create a token object user right must not be assigned to any groups or accounts.
RMF Control
AC-6
Severity
H
CCI
CCI-002235
Version
WN10-UR-000045
Vuln IDs
V-63859
Rule IDs
SV-78349r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Create a token object" user right allows a process to create an access token. This could be used to provide elevated rights and compromise a system.
Fix: F-69787r2_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create a token object" to be defined but containing no entries (blank).

b
The Create global objects user right must only be assigned to Administrators, Service, Local Service, and Network Service.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000050
Vuln IDs
V-63861
Rule IDs
SV-78351r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Create global objects" user right can create objects that are available to all sessions, which could affect processes in other users' sessions.
Fix: F-69789r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create global objects" to only include the following groups or accounts: Administrators LOCAL SERVICE NETWORK SERVICE SERVICE

b
The Create permanent shared objects user right must not be assigned to any groups or accounts.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000055
Vuln IDs
V-63863
Rule IDs
SV-78353r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Create permanent shared objects" user right could expose sensitive data by creating shared objects.
Fix: F-69791r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create permanent shared objects" to be defined but containing no entries (blank).

b
The Create symbolic links user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000060
Vuln IDs
V-63865
Rule IDs
SV-78355r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Create symbolic links" user right can create pointers to other objects, which could potentially expose the system to attack.
Fix: F-69793r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Create symbolic links" to only include the following groups or accounts: Administrators

c
The Debug programs user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
H
CCI
CCI-002235
Version
WN10-UR-000065
Vuln IDs
V-63869
Rule IDs
SV-78359r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Debug Programs" user right can attach a debugger to any process or to the kernel, providing complete access to sensitive and critical operating system components. This right is given to Administrators in the default configuration.
Fix: F-69797r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Debug programs" to only include the following groups or accounts: Administrators

b
The Deny access to this computer from the network user right on workstations must be configured to prevent access from highly privileged domain accounts and local accounts on domain systems and unauthenticated access on all systems.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000070
Vuln IDs
V-63871
Rule IDs
SV-78361r3_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny access to this computer from the network" right defines the accounts that are prevented from logging on from the network. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks, which could lead to the compromise of an entire domain. Local accounts on domain-joined systems must also be assigned this right to decrease the risk of lateral movement resulting from credential theft attacks. The Guests group must be assigned this right to prevent unauthenticated access.
Fix: F-88441r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny access to this computer from the network" to include the following. Domain Systems Only: Enterprise Admins group Domain Admins group Local account (see Note below) All Systems: Guests group Privileged Access Workstations (PAWs) dedicated to the management of Active Directory are exempt from denying the Enterprise Admins and Domain Admins groups. (See the Windows Privileged Access Workstation STIG for PAW requirements.) Note: "Local account" is a built-in security group used to assign user rights and permissions to all local accounts.

b
The Deny log on as a batch job user right on domain-joined workstations must be configured to prevent access from highly privileged domain accounts.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000075
Vuln IDs
V-63873
Rule IDs
SV-78363r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on as a batch job" right defines accounts that are prevented from logging on to the system as a batch job, such as Task Scheduler. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain.
Fix: F-69801r1_fix

This requirement is applicable to domain-joined systems, for standalone systems this is NA. Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny log on as a batch job" to include the following. Domain Systems Only: Enterprise Admin Group Domain Admin Group

b
The Deny log on as a service user right on Windows 10 domain-joined workstations must be configured to prevent access from highly privileged domain accounts.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000080
Vuln IDs
V-63875
Rule IDs
SV-78365r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Deny log on as a service" right defines accounts that are denied log on as a service. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks which could lead to the compromise of an entire domain. Incorrect configurations could prevent services from starting and result in a DoS.
Fix: F-100993r1_fix

This requirement is applicable to domain-joined systems, for standalone systems this is NA. Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny log on as a service" to include the following. Domain Systems Only: Enterprise Admins Group Domain Admins Group

b
The Deny log on locally user right on workstations must be configured to prevent access from highly privileged domain accounts on domain systems and unauthenticated access on all systems.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000085
Vuln IDs
V-63877
Rule IDs
SV-78367r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on locally" right defines accounts that are prevented from logging on interactively. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks, which could lead to the compromise of an entire domain. The Guests group must be assigned this right to prevent unauthenticated access.
Fix: F-88443r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny log on locally" to include the following. Domain Systems Only: Enterprise Admins Group Domain Admins Group Privileged Access Workstations (PAWs) dedicated to the management of Active Directory are exempt from denying the Enterprise Admins and Domain Admins groups. (See the Windows Privileged Access Workstation STIG for PAW requirements.) All Systems: Guests Group

b
The Deny log on through Remote Desktop Services user right on Windows 10 workstations must at a minimum be configured to prevent access from highly privileged domain accounts and local accounts on domain systems and unauthenticated access on all systems.
RMF Control
AC-3
Severity
M
CCI
CCI-000213
Version
WN10-UR-000090
Vuln IDs
V-63879
Rule IDs
SV-78369r4_rule
Inappropriate granting of user rights can provide system, administrative, and other high-level capabilities. The "Deny log on through Remote Desktop Services" right defines the accounts that are prevented from logging on using Remote Desktop Services. If Remote Desktop Services is not used by the organization, the Everyone group must be assigned this right to prevent all access. In an Active Directory Domain, denying logons to the Enterprise Admins and Domain Admins groups on lower trust systems helps mitigate the risk of privilege escalation from credential theft attacks, which could lead to the compromise of an entire domain. Local accounts on domain-joined systems must also be assigned this right to decrease the risk of lateral movement resulting from credential theft attacks. The Guests group must be assigned this right to prevent unauthenticated access.
Fix: F-88445r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Deny log on through Remote Desktop Services" to include the following. If Remote Desktop Services is not used by the organization, assign the Everyone group this right to prevent all access. Domain Systems Only: Enterprise Admins group Domain Admins group Local account (see Note below) All Systems: Guests group Privileged Access Workstations (PAWs) dedicated to the management of Active Directory are exempt from denying the Enterprise Admins and Domain Admins groups. (See the Windows Privileged Access Workstation STIG for PAW requirements.) Note: "Local account" is a built-in security group used to assign user rights and permissions to all local accounts.

b
The Enable computer and user accounts to be trusted for delegation user right must not be assigned to any groups or accounts.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000095
Vuln IDs
V-63881
Rule IDs
SV-78371r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Enable computer and user accounts to be trusted for delegation" user right allows the "Trusted for Delegation" setting to be changed. This could potentially allow unauthorized users to impersonate other users.
Fix: F-69809r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Enable computer and user accounts to be trusted for delegation" to be defined but containing no entries (blank).

b
The Force shutdown from a remote system user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000100
Vuln IDs
V-63883
Rule IDs
SV-78373r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Force shutdown from a remote system" user right can remotely shut down a system which could result in a DoS.
Fix: F-69811r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Force shutdown from a remote system" to only include the following groups or accounts: Administrators

b
The Generate security audits user right must only be assigned to Local Service and Network Service.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000105
Vuln IDs
V-63887
Rule IDs
SV-78377r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Generate security audits" user right specifies users and processes that can generate Security Log audit records, which must only be the system service accounts defined.
Fix: F-69815r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Generate security audits" to only include the following groups or accounts: LOCAL SERVICE NETWORK SERVICE

b
The Impersonate a client after authentication user right must only be assigned to Administrators, Service, Local Service, and Network Service.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000110
Vuln IDs
V-63889
Rule IDs
SV-78379r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Impersonate a client after authentication" user right allows a program to impersonate another user or account to run on their behalf. An attacker could potentially use this to elevate privileges.
Fix: F-69817r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Impersonate a client after authentication" to only include the following groups or accounts: Administrators LOCAL SERVICE NETWORK SERVICE SERVICE

b
The Increase scheduling priority user right on Windows 10 must only be assigned to Administrators and Window Manager\Window Manager Group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000115
Vuln IDs
V-63891
Rule IDs
SV-78381r2_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Increase scheduling priority" user right can change a scheduling priority causing performance issues or a DoS.
Fix: F-100995r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Increase scheduling priority" to only include the following groups or accounts: Administrators Window Manager\Window Manager Group

b
The Load and unload device drivers user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000120
Vuln IDs
V-63917
Rule IDs
SV-78407r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Load and unload device drivers" user right allows device drivers to dynamically be loaded on a system by a user. This could potentially be used to install malicious code by an attacker.
Fix: F-69845r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Load and unload device drivers" to only include the following groups or accounts: Administrators

b
The Lock pages in memory user right must not be assigned to any groups or accounts.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000125
Vuln IDs
V-63925
Rule IDs
SV-78415r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. The "Lock pages in memory" user right allows physical memory to be assigned to processes, which could cause performance issues or a DoS.
Fix: F-69853r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Lock pages in memory" to be defined but containing no entries (blank).

b
The Manage auditing and security log user right must only be assigned to the Administrators group.
RMF Control
AU-9
Severity
M
CCI
CCI-000162
Version
WN10-UR-000130
Vuln IDs
V-63927
Rule IDs
SV-78417r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Manage auditing and security log" user right can manage the security log and change auditing configurations. This could be used to clear evidence of tampering.
Fix: F-69855r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Manage auditing and security log" to only include the following groups or accounts: Administrators

b
The Modify firmware environment values user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000140
Vuln IDs
V-63931
Rule IDs
SV-78421r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Modify firmware environment values" user right can change hardware configuration environment variables. This could result in hardware failures or a DoS.
Fix: F-69859r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Modify firmware environment values" to only include the following groups or accounts: Administrators

b
The Perform volume maintenance tasks user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000145
Vuln IDs
V-63933
Rule IDs
SV-78423r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Perform volume maintenance tasks" user right can manage volume and disk configurations. They could potentially delete volumes, resulting in, data loss or a DoS.
Fix: F-69861r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Perform volume maintenance tasks" to only include the following groups or accounts: Administrators

b
The Profile single process user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000150
Vuln IDs
V-63935
Rule IDs
SV-78425r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Profile single process" user right can monitor non-system processes performance. An attacker could potentially use this to identify processes to attack.
Fix: F-69863r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Profile single process" to only include the following groups or accounts: Administrators

b
The Restore files and directories user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000160
Vuln IDs
V-63939
Rule IDs
SV-78429r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Restore files and directories" user right can circumvent file and directory permissions and could allow access to sensitive data. It could also be used to over-write more current data.
Fix: F-69867r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Restore files and directories" to only include the following groups or accounts: Administrators

b
The Take ownership of files or other objects user right must only be assigned to the Administrators group.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-UR-000165
Vuln IDs
V-63941
Rule IDs
SV-78431r1_rule
Inappropriate granting of user rights can provide system, administrative, and other high level capabilities. Accounts with the "Take ownership of files or other objects" user right can take ownership of objects and make changes.
Fix: F-69869r1_fix

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment >> "Take ownership of files or other objects" to only include the following groups or accounts: Administrators

a
Windows Update must not obtain updates from other PCs on the Internet.
RMF Control
CM-6
Severity
L
CCI
CCI-000366
Version
WN10-CC-000206
Vuln IDs
V-65681
Rule IDs
SV-80171r3_rule
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.
Fix: F-83251r4_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)". Standalone 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
Command line data must be included in process creation events.
RMF Control
AU-3
Severity
M
CCI
CCI-000135
Version
WN10-CC-000066
Vuln IDs
V-68817
Rule IDs
SV-83409r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Enabling "Include command line data for process creation events" will record the command line information with the process creation events in the log. This can provide additional detail when malware has run on a system.
Fix: F-74987r1_fix

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

b
PowerShell script block logging must be enabled on Windows 10.
RMF Control
AU-3
Severity
M
CCI
CCI-000135
Version
WN10-CC-000326
Vuln IDs
V-68819
Rule IDs
SV-83411r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Enabling PowerShell script block logging will record detailed information from the processing of PowerShell commands and scripts. This can provide additional detail when malware has run on a system.
Fix: F-74989r1_fix

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

c
Data Execution Prevention (DEP) must be configured to at least OptOut.
RMF Control
SI-16
Severity
H
CCI
CCI-002824
Version
WN10-00-000145
Vuln IDs
V-68845
Rule IDs
SV-83439r2_rule
Attackers are constantly looking for vulnerabilities in systems and applications. Data Execution Prevention (DEP) prevents harmful code from running in protected memory locations reserved for Windows and other programs.
Fix: F-75017r2_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.
RMF Control
SI-16
Severity
H
CCI
CCI-002824
Version
WN10-00-000150
Vuln IDs
V-68849
Rule IDs
SV-83445r4_rule
Attackers are constantly looking for vulnerabilities in systems and applications. Structured Exception Handling Overwrite Protection (SEHOP) blocks exploits that use the Structured Exception Handling overwrite technique, a common buffer overflow attack.
Fix: F-87295r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-00-000155
Vuln IDs
V-70637
Rule IDs
SV-85259r2_rule
Windows PowerShell 5.0 added advanced logging features which can provide additional detail when malware has been run on a system. Disabling the Windows PowerShell 2.0 mitigates against a downgrade attack that evades the Windows PowerShell 5.0 script block logging feature.
Fix: F-76869r1_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-00-000160
Vuln IDs
V-70639
Rule IDs
SV-85261r2_rule
SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older Network Attached Storage (NAS) devices may only support SMBv1.
Fix: F-76871r2_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 system must be configured to audit Logon/Logoff - Account Lockout failures.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000054
Vuln IDs
V-71759
Rule IDs
SV-86383r2_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Account Lockout events can be used to identify potentially malicious logon attempts.
Fix: F-78111r2_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 Policy Change - Authorization Policy Change successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000107
Vuln IDs
V-71761
Rule IDs
SV-86385r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Authorization Policy Change records events related to changes in user rights, such as Create a token object.
Fix: F-78113r1_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
WDigest Authentication must be disabled.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000038
Vuln IDs
V-71763
Rule IDs
SV-86387r1_rule
When the WDigest Authentication protocol is enabled, plain text passwords are stored in the Local Security Authority Subsystem Service (LSASS) exposing them to theft. WDigest is disabled by default in Windows 10. This setting ensures this is enforced.
Fix: F-78115r4_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
Internet connection sharing must be disabled.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000044
Vuln IDs
V-71765
Rule IDs
SV-86389r1_rule
Internet connection sharing makes it possible for an existing internet connection, such as through wireless, to be shared and used by other systems essentially creating a mobile hotspot. This exposes the system sharing the connection to others with potentially malicious purpose.
Fix: F-78117r2_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
Remote calls to the Security Account Manager (SAM) must be restricted to Administrators.
RMF Control
AC-6
Severity
M
CCI
CCI-002235
Version
WN10-SO-000167
Vuln IDs
V-71769
Rule IDs
SV-86393r3_rule
The Windows Security Account Manager (SAM) stores users' passwords. Restricting remote rpc connections to the SAM to Administrators helps protect those credentials.
Fix: F-78121r3_fix

Navigate to the policy Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network access: Restrict clients allowed to make remote calls to SAM". Select "Edit Security" to configure the "Security descriptor:". Add "Administrators" in "Group or user names:" if it is not already listed (this is the default). Select "Administrators" in "Group or user names:". Select "Allow" for "Remote Access" in "Permissions for "Administrators". Click "OK". The "Security descriptor:" must be populated with "O:BAG:BAD:(A;;RC;;;BA) for the policy to be enforced.

a
Microsoft consumer experiences must be turned off.
RMF Control
CM-7
Severity
L
CCI
CCI-000381
Version
WN10-CC-000197
Vuln IDs
V-71771
Rule IDs
SV-86395r2_rule
Microsoft consumer experiences provides suggestions and notifications to users, which may include the installation of Windows Store apps. Organizations may control the execution of applications through other means such as whitelisting. Turning off Microsoft consumer experiences will help prevent the unwanted installation of suggested applications.
Fix: F-78123r1_fix

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

b
Run as different user must be removed from context menus.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000039
Vuln IDs
V-72329
Rule IDs
SV-86953r1_rule
The "Run as different user" selection from context menus allows the use of credentials other than the currently logged on user. Using privileged credentials in a standard user session can expose those credentials to theft. Removing this option from context menus helps prevent this from occurring.
Fix: F-78683r2_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
Windows 10 must be configured to audit Object Access - Other Object Access Events failures.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000084
Vuln IDs
V-74409
Rule IDs
SV-89083r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Auditing for other object access records events related to the management of task scheduler jobs and COM+ objects.
Fix: F-80951r4_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
Windows 10 must be configured to audit Object Access - Other Object Access Events successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000083
Vuln IDs
V-74411
Rule IDs
SV-89085r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Auditing for other object access records events related to the management of task scheduler jobs and COM+ objects.
Fix: F-80953r2_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 prevent Microsoft Edge browser data from being cleared on exit.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000228
Vuln IDs
V-74415
Rule IDs
SV-89089r4_rule
Clearing browser data on exit automatically deletes specified items when the last browser window closes. This data could be used to identify malicious websites and files that could later be used for anti-virus and Intrusion Detection System (IDS) signatures. Disabling this function will prevent the data from automatically being deleted when the browser closes.
Fix: F-80957r1_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Microsoft Edge >> "Allow clearing browsing data on exit" to "Disabled".

b
Windows 10 must be configured to disable Windows Game Recording and Broadcasting.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-CC-000252
Vuln IDs
V-74417
Rule IDs
SV-89091r2_rule
Windows Game Recording and Broadcasting is intended for use with games, however it could potentially record screen shots of other applications and expose sensitive data. Disabling the feature will prevent this from occurring.
Fix: F-80959r1_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
Windows 10 must be configured to enable Remote host allows delegation of non-exportable credentials.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000068
Vuln IDs
V-74699
Rule IDs
SV-89373r2_rule
An exportable version of credentials is provided to remote hosts when using credential delegation which exposes them to theft on the remote host. Restricted Admin mode or Remote Credential Guard allow delegation of non-exportable credentials providing additional protection of the credentials. Enabling this configures the host to support Restricted Admin mode or Remote Credential Guard.
Fix: F-81317r1_fix

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

b
The Secondary Logon service must be disabled on Windows 10.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-00-000175
Vuln IDs
V-74719
Rule IDs
SV-89393r2_rule
The Secondary Logon service provides a means for entering alternate credentials, typically used to run commands with elevated privileges. Using privileged credentials in a standard user session can expose those credentials to theft.
Fix: F-81333r1_fix

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

b
Windows 10 must be configured to audit Object Access - File Share successes.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000082
Vuln IDs
V-74721
Rule IDs
SV-89395r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Auditing file shares records events related to connection to shares on a system including system shares such as C$.
Fix: F-81335r3_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
The Server Message Block (SMB) v1 protocol must be disabled on the SMB server.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-00-000165
Vuln IDs
V-74723
Rule IDs
SV-89397r1_rule
SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.
Fix: F-81337r2_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.
RMF Control
CM-7
Severity
M
CCI
CCI-000381
Version
WN10-00-000170
Vuln IDs
V-74725
Rule IDs
SV-89399r1_rule
SMBv1 is a legacy protocol that uses the MD5 algorithm as part of SMB. MD5 is known to be vulnerable to a number of attacks such as collision and preimage attacks as well as not being FIPS compliant. Disabling SMBv1 support may prevent access to file or print sharing resources with systems or devices that only support SMBv1. File shares and print services hosted on Windows Server 2003 are an example, however Windows Server 2003 is no longer a supported operating system. Some older network attached devices may only support SMBv1.
Fix: F-81339r3_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
Windows 10 must be configured to audit Object Access - File Share failures.
RMF Control
AU-12
Severity
M
CCI
CCI-000172
Version
WN10-AU-000081
Vuln IDs
V-75027
Rule IDs
SV-89701r1_rule
Maintaining an audit trail of system activity logs can help identify configuration errors, troubleshoot service disruptions, and analyze compromises that have occurred, as well as detect attacks. Audit logs are necessary to provide a trail of evidence in case the system or network is compromised. Collecting this data is essential for analyzing the security of information assets and detecting signs of suspicious and unexpected behavior. Auditing file shares records events related to connection to shares on a system including system shares such as C$.
Fix: F-81643r1_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 prevent certificate error overrides in Microsoft Edge.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000238
Vuln IDs
V-82139
Rule IDs
SV-96853r1_rule
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.
Fix: F-88993r1_fix

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

b
If Enhanced diagnostic data is enabled it must be limited to the minimum required to support Windows Analytics.
RMF Control
CM-6
Severity
M
CCI
CCI-000366
Version
WN10-CC-000204
Vuln IDs
V-82145
Rule IDs
SV-96859r1_rule
Some features may communicate with the vendor, sending system information or downloading data or components for the feature. Limiting this capability will prevent potentially sensitive information from being sent outside the enterprise. The "Enhanced" level for telemetry includes additional information beyond "Security" and "Basic" on how Windows and apps are used and advanced reliability data. Windows Analytics can use a "limited enhanced" level to provide information such as health data for devices.
Fix: F-88997r2_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:".