ActiveX controls without prompt property must be used in approved domains only (Internet zone).

From Microsoft Internet Explorer 11 Security Technical Implementation Guide

Part of DTBI830-IE11-ActiveX controls without prompt - Internet

Associated with IA controls: ECSC-1

Associated with: CCI-001170

SV-59729r1_rule ActiveX controls without prompt property must be used in approved domains only (Internet zone).

Vulnerability discussion

This policy setting controls whether or not the user is prompted to allow ActiveX controls to run on websites other than the website that installed the ActiveX control. If the user were to disable the setting for the zone, malicious ActiveX controls could be executed without the user's knowledge. Disabling this setting would allow the possibility for malicious ActiveX controls to be executed from non-approved domains within this zone without the user's knowledge. Enabling this setting enforces the default value and prohibits the user from changing the value. Websites should be moved into another zone if permissions need to be changed.

Check content

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Internet Zone -> ' Allow only approved domains to use ActiveX controls without prompt' must be 'Enabled', and 'Enable' 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 "120b" 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 -> 'Allow only approved domains to use ActiveX controls without prompt' to 'Enabled', and select 'Enable' from the drop-down box.

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