Microsoft Windows Server 2022

Windows Server 2022 administrator accounts must not be enumerated during elevation

STIG ID: WN22-CC-000240 | SRG: SRG-OS-000134-GPOS-00068 | Severity: Medium | CCI: CCI-001084 | Vulnerability ID: V-254355

Description

Enumeration of administrator accounts when elevating can provide part of the logon information to an unauthorized user. This setting configures the system to always require users to type in a username and password to elevate a running application.

Check

C-57840r848879_chk

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive:
HKEY_LOCAL_MACHINE

Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CredUI\

Value Name: EnumerateAdministrators

Type: REG_DWORD
Value: 0x00000000 (0)

Fix

F-57791r848880_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Credential User Interface >> Enumerate administrator accounts on elevation to "Disabled".