Check Point Advisories

Internet Explorer Handling Layout Memory Corruption (MS11-050; CVE-2011-1254)

Check Point Reference: CPAI-2011-302
Date Published: 14 Jun 2011
Severity: Critical
Last Updated: Tuesday 14 June, 2011
Source:
Industry Reference:CVE-2011-1254
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description A remote code execution vulnerability has been reported in the way that Microsoft IE accesses an object that has not been correctly initialized or has been deleted. Microsoft IE attempts to access an object that has not been initialized or has been deleted, it may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the logged-on user. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user.

Protection Overview

This protection detects and prevent access to such specially crafted Web pages

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75 / R71 / R70 / R65

  1. In the IPS tab, click Protections and find the Internet Explorer Handling Layout Memory Corruption (MS11-050) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Internet Explorer handling layout memory corruption (MS11-050)

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