Legacy filter functionality must be disallowed (Restricted Sites zone).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-46569	DTBI1050-IE11	SV-59433r1_rule	ECSC-1	Medium

Description
This policy setting specifies whether Internet Explorer renders legacy visual filters in this zone. If you enable this policy setting, you can control whether or not Internet Explorer renders legacy filters by selecting "Enable", or "Disable" under Options in the Group Policy Editor. If you disable, or do not configure this policy setting, users can choose whether or not to render filters in this zone. Users can change this setting on the "Security" tab of the Internet Options dialog box. Filters are not rendered by default in this zone.

Description

This policy setting specifies whether Internet Explorer renders legacy visual filters in this zone. If you enable this policy setting, you can control whether or not Internet Explorer renders legacy filters by selecting "Enable", or "Disable" under Options in the Group Policy Editor. If you disable, or do not configure this policy setting, users can choose whether or not to render filters in this zone. Users can change this setting on the "Security" tab of the Internet Options dialog box. Filters are not rendered by default in this zone.

STIG	Date
Microsoft Internet Explorer 11 Security Technical Implementation Guide	2015-06-30

Details

Check Text ( C-49735r2_chk )
The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer-> Internet Control Panel-> Security Page-> Restricted Sites Zone 'Render Legacy Filters' 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 "270B" is REG_DWORD = 3, this is not a finding.

Check Text ( C-49735r2_chk )

The policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer-> Internet Control Panel-> Security Page-> Restricted Sites Zone 'Render Legacy Filters' 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 "270B" is REG_DWORD = 3, this is not a finding.

Fix Text (F-50339r1_fix)
Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer-> Internet Control Panel-> Security Page-> Restricted Sites Zone 'Render Legacy Filters' to 'Enabled', and select 'Disabled' from the drop-down box.