Title

.NET Framework-reliant components signed with Authenticode must be disallowed to run (Internet zone). (Cat II impact)

Discussion

It may be possible for someone to host malicious content on a website that takes advantage of these components. This policy setting allows you to manage whether .NET Framework components that are signed with Authenticode can be executed from Internet Explorer. These components include managed controls referenced from an object tag and managed executables referenced from a link. If you enable this policy setting, Internet Explorer will execute signed managed components. If you select Prompt in the drop-down box, Internet Explorer will prompt the user to determine whether to execute signed managed components. If you disable this policy setting, Internet Explorer will not execute signed managed components. If you do not configure this policy setting, Internet Explorer will not execute signed managed components.

Check Content

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Internet Zone "Run .NET Framework-reliant components signed with Authenticode" must be "Enabled", and "Disable" selected from the drop-down box. Procedure: Use the Windows Registry Editor to navigate to the following key: HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3 Criteria: If the value 2001 is REG_DWORD = 3, this is not a finding.

Fix Text

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Internet Zone "Run .NET Framework-reliant components signed with Authenticode" to "Enabled", and select "Disable" from the drop-down box.

Additional Identifiers

Rule ID: SV-45053r1_rule

Vulnerability ID: V-22636

Group Title: DTBI930 - .NET w/Authenticode signed - Internet

Expert Comments

CCIs tied to check.

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