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User Account Control must, at minimum, prompt administrators for consent.


Overview

Finding ID Version Rule ID IA Controls Severity
WN12-SO-000078 WN12-SO-000078 WN12-SO-000078_rule Medium
Description
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.
STIG Date
Microsoft Windows Server 2012 Member Server Security Technical Implementation Guide 2013-07-25

Details

Check Text ( C-WN12-SO-000078_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\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)

UAC requirements are NA on Server Core installations.
Fix Text (F-WN12-SO-000078_fix)
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).

UAC requirements are NA on Server Core installations.