User Account Control must switch to the secure desktop when prompting for elevation.

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Part of UAC - Secure Desktop Mode

Associated with: CCI-001084

SV-52952r1_rule User Account Control must switch to the secure desktop when prompting for elevation.

Vulnerability discussion

User Account Control (UAC) is a security mechanism for limiting the elevation of privileges, including administrative accounts, unless authorized. This setting ensures that the elevation prompt is only used in secure desktop mode.

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: PromptOnSecureDesktop Value Type: REG_DWORD Value: 1

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: Switch to the secure desktop when prompting for elevation" to "Enabled".

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