Title

Administrator accounts must not be enumerated during elevation. (Cat II impact)

Discussion

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 enter in a username and password to elevate a running application.

Check Content

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 Text

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

Additional Identifiers

Rule ID: SV-226189r794453_rule

Vulnerability ID: V-226189

Group Title: SRG-OS-000134-GPOS-00068

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.