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

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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-15991	WN12-SO-000086	SV-52223r2_rule	ECCD-1 ECCD-2	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
Windows Server 2012 / 2012 R2 Domain Controller Security Technical Implementation Guide	2016-06-08

Details

Check Text ( C-46966r1_chk )
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: EnableUIADesktopToggle Value Type: REG_DWORD Value: 0

Fix Text (F-45241r1_fix)
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: Allow UIAccess applications to prompt for elevation without using the secure desktop" to "Disabled".