Title

User Account Control must, at minimum, prompt administrators for consent. (Cat II impact)

Discussion

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting configures the elevation requirements for logged on administrators to complete a task that requires raised privileges.

Check Content

UAC requirements are NA on Server Core installations. 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\System\ Value Name: ConsentPromptBehaviorAdmin Value Type: REG_DWORD Value: 4 (Prompt for consent) 3 (Prompt for credentials) 2 (Prompt for consent on the secure desktop) 1 (Prompt for credentials on the secure desktop)

Fix Text

UAC requirements are NA on Server Core installations. Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode" to "Prompt for consent". More secure options for this setting would also be acceptable (e.g., Prompt for credentials, Prompt for consent (or credentials) on the secure desktop).

Additional Identifiers

Rule ID: SV-226339r794642_rule

Vulnerability ID: V-226339

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.