The Initialize and script ActiveX controls not marked as safe property must be disallowed (Restricted Sites zone).

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-223057	SRG-APP-000210	DTBI114-IE11	SV-223057r879630_rule	2023-12-01	2

Description
ActiveX controls not marked safe for scripting should not be executed. Although this is not a complete security measure for a control to be marked safe for scripting, if a control is not marked safe, it should not be initialized and executed.

ℹ️ Check
The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> 'Initialize and script ActiveX controls not marked as safe' 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\4 Criteria: If the value "1201" is REG_DWORD = 3, this is not a finding.

ℹ️ Check

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> 'Initialize and script ActiveX controls not marked as safe' 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\4 Criteria: If the value "1201" is REG_DWORD = 3, this is not a finding.

✔️ Fix
Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> 'Initialize and script ActiveX controls not marked as safe' to 'Enabled', and select 'Disable' from the drop-down box.