Internet Explorer Processes for Zone Elevation must be enforced (IExplore).

From Internet Explorer 9 Security Technical Implementation Guide

Part of DTBI614 - Zone elevation - IExplore

Associated with IA controls: ECSC-1

SV-40688r1_rule Internet Explorer Processes for Zone Elevation must be enforced (IExplore).

Vulnerability discussion

Internet Explorer places restrictions on each web page it opens that are dependent upon the location of the web page (such as Internet Zone, Intranet Zone, or Local Machine Zone). Web pages on a local computer have the fewest security restrictions and reside in the Local Machine Zone, which makes the Local Machine Security Zone a prime target for malicious attackers. If you enable this policy setting, any zone can be protected from zone elevation by Internet Explorer processes. This approach stops content running in one zone from gaining the elevated privileges of another zone. If you disable this policy setting, no zone receives such protection for Internet Explorer processes. Because of the severity and relative frequency of zone elevation attacks, this guide recommends that you configure this setting as Enabled in all environments.

Check content

Fix text

Set the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Internet Explorer -> Security Features -> Protection From Zone Elevation -> "Internet Explorer Processes" to “Enabled”.

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