The Windows Server 2025 "Access Credential Manager as a trusted caller" user right must not be assigned to any groups or accounts.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-278241WN25-UR-000010SV-278241r1182208_ruleCCI-002235medium
Description
Inappropriately granting user rights provides 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.
STIGDate
Microsoft Windows Server 2025 Security Technical Implementation Guide2026-02-20

Details

Check Text (C-278241r1182208_chk)

Verify the effective setting in Local Group Policy Editor. Run gpedit.msc. Navigate to Local Computer Policy >> Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> 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 (F-82676r1181428_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).