Title

Windows must elevate all applications in User Account Control, not just signed ones. (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 configures whether Windows elevates all applications, or only signed ones.

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: ValidateAdminCodeSignatures Value Type: REG_DWORD Value: 0

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: Only elevate executables that are signed and validated" to "Disabled".

Additional Identifiers

Rule ID: SV-226342r794644_rule

Vulnerability ID: V-226342

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

Expert Comments

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