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

From Windows Server 2016 Security Technical Implementation Guide

Associated with: CCI-002235

SV-88393r1_rule The Access Credential Manager as a trusted caller user right must not be assigned to any groups or accounts.

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

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.

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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