Nonadministrators must be prevented from applying vendor-signed updates.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-15686	WN12-CC-000118	SV-53065r1_rule		Low

Description
Uncontrolled system updates can introduce issues to a system. This setting will prevent users from applying vendor-signed updates (though they may be from a trusted source).

STIG	Date
Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide	2020-06-16

Details

Check Text ( C-47371r2_chk )
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\Policies\Microsoft\Windows\Installer\ Value Name: DisableLUAPatching Type: REG_DWORD Value: 1

Fix Text (F-45991r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Windows Installer -> "Prohibit non-administrators from applying vendor signed updates" to "Enabled".