Windows Server 2019 administrator accounts must not be enumerated during elevation.

Documentable No

Rule ID SV-205714r958518_rule

CCI References

CCI-001084

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

Check Procedure

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 Action

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