Unauthorized accounts must not have the Access Credential Manager as a trusted caller user right.

From Windows 8/8.1 Security Technical Implementation Guide

Part of Access Credential Manager as a trusted caller

Associated with IA controls: ECLP-1

Associated with: CCI-002235

SV-48513r2_rule Unauthorized accounts must not have the Access Credential Manager as a trusted caller user right.

Vulnerability 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

Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.) Expand the Security Configuration and Analysis tree view. Navigate to 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.

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).

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