Title

Windows Server 2019 Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts. (Cat II impact)

Discussion

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.

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 accounts or groups are granted the "Access Credential Manager as a trusted caller" user right, this is a finding. For server core installations, run the following command: Secedit /Export /Areas User_Rights /cfg c:\path\filename.txt Review the text file. If any SIDs are granted the "SeTrustedCredManAccessPrivilege" user right, this is a finding.

Fix Text

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).

Additional Identifiers

Rule ID: SV-205749r958726_rule

Vulnerability ID: V-205749

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

Expert Comments

CCIs tied to check.

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