UIAccess applications must not be allowed to prompt for elevation without using the secure desktop.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
WN12-SO-000086	WN12-SO-000086	WN12-SO-000086_rule		Medium

Description
User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting prevents User Interface Accessibility programs from disabling the secure desktop for elevation prompts.

STIG	Date
Microsoft Windows Server 2012 Domain Controller Security Technical Implementation Guide	2013-07-25

Details

Check Text ( C-WN12-SO-000086_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: EnableUIADesktopToggle Value Type: REG_DWORD Value: 0 UAC requirements are NA on Server Core installations.

Fix Text (F-WN12-SO-000086_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop" to "Disabled". UAC requirements are NA on Server Core installations.