Protected Mode must be enforced (Restricted Sites zone).

From Microsoft Internet Explorer 10 Security Technical Implementation Guide

Part of DTBI490 - Protected Mode - Restricted

Associated with IA controls: ECSC-1

SV-45290r1_rule Protected Mode must be enforced (Restricted Sites zone).

Vulnerability discussion

Protected mode protects Internet Explorer from exploited vulnerabilities by reducing the locations Internet Explorer can write to in the registry and the file system. If you enable this policy setting, Protected Mode will be turned on. Users will not be able to turn off protected mode. If you disable this policy setting, Protected Mode will be turned off. It will revert to Internet Explorer 6 behavior that allows for Internet Explorer to write to the registry and the file system. Users will not be able to turn on protected mode. If you do not configure this policy, users will be able to turn on or off protected mode.

Check content

Fix text

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Internet Control Panel -> Security Page -> Restricted Sites Zone -> "Turn on Protected Mode" to "Enabled" and select "Enable", from the drop-down box.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.