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Check: WN11-SO-000260

Microsoft Windows 11 STIG: WN11-SO-000260 (in versions v1 r6 through v1 r1)

Title

User Account Control must be configured to detect application installations and prompt for elevation. (Cat II impact)

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

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: 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".

Additional Identifiers

Rule ID: SV-253472r829500_rule

Vulnerability ID: V-253472

Group Title: SRG-OS-000134-GPOS-00068

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-001084	The information system isolates security functions from nonsecurity functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
SC-3	Security Function Isolation