Title

The Change the system time user right must only be assigned to Administrators and Local Service and NT SERVICE\autotimesvc. (Cat II impact)

Discussion

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. The NT SERVICE\autotimesvc is added in v1909 cumulative update.

Check Content

Verify the effective setting in Local Group Policy Editor. Run "gpedit.msc". Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> User Rights Assignment. If any groups or accounts other than the following are granted the "Change the system time" user right, this is a finding: Administrators LOCAL SERVICE NT SERVICE\autotimesvc is added in v1909 cumulative update.

Fix Text

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 NT SERVICE\autotimesvc is added in v1909 cumulative update.

Additional Identifiers

Rule ID: SV-220961r958726_rule

Vulnerability ID: V-220961

Group Title: SRG-OS-000324-GPOS-00125

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.