Trusted app installation must be enabled to allow for signed enterprise line of business apps.

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

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-51738r1_rule Trusted app installation must be enabled to allow for signed enterprise line of business apps.

Vulnerability discussion

Enabling trusted app installation allows for enterprise line of business Windows 8 type apps. A trusted app package is one that is signed with a certificate chain that can be successfully validated in the enterprise. Configuring this ensures enterprise line of business apps are accessible.

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\Policies\Microsoft\Windows\Appx\ Value Name: AllowAllTrustedApps Type: REG_DWORD Value: 1

Fix text

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> App Package Deployment -> "Allow all trusted apps to install" to "Enabled".

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