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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-225070	WN16-UR-000010	SV-225070r569186_rule		Medium

Description
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.

STIG	Date
Microsoft Windows Server 2016 Security Technical Implementation Guide	2021-03-05

Details

Check Text ( C-26761r466112_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.

Check Text ( C-26761r466112_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-26749r466113_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).