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UAC - Allow UIAccess applications to prompt for elevation without using the secure desktop


Overview

Finding ID Version Rule ID IA Controls Severity
V-15991 3.138 SV-16934r1_rule Medium
Description
This check verifies whether User Interface Accessibility programs can automatically disable the secure desktop for elevation prompts for a standard user.
STIG Date
Windows 2008 Member Server Security Technical Implementation Guide 2019-06-18

Details

Check Text ( C-32781r1_chk )
Analyze the system using the Security Configuration and Analysis snap-in.
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies -> Security Options.

If the value for “User Account Control: Allow UIAccess applications to prompt for elevation without using the secure desktop” is not set to “Disabled”, then this is a finding.

The policy referenced configures the following registry value:

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-28854r1_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”.