User Account Control must be configured to detect application installations and prompt for elevation.

From Windows 8/8.1 Security Technical Implementation Guide

Associated with IA controls: ECCD-2, ECCD-1

Associated with: CCI-001084

SV-48197r2_rule User Account Control must be configured to detect application installations and prompt 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 requires Windows to respond to application installation requests by prompting for credentials.

Check content

Analyze the system using the Security Configuration and Analysis snap-in. (See "Performing Analysis with the Security Configuration and Analysis Snap-in" in the STIG Overview document.) Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for "User Account Control: Detect application installations and prompt for elevation" is not set to "Enabled", 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: EnableInstallerDetection Value Type: REG_DWORD Value: 1

Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "User Account Control: Detect application installations and prompt for elevation" to "Enabled".

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