Check Point Advisories

Internet Explorer Virtual Function Table Memory Corruption (MS11-081; CVE-2011-2001)

Check Point Reference: CPAI-2011-456
Date Published: 11 Oct 2011
Severity: Critical
Last Updated: Tuesday 26 February, 2013
Source:
Industry Reference:CVE-2011-2001
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description A memory corruption vulnerability has been reported in Internet Explorer. The vulnerability is due to an error when handling a certain DOM operation. A remote attacker may exploit this vulnerability by enticing a user to open a malicious web-page. Successful exploitation may cause a memory corruption in a way that will allow an attacker to execute arbitrary code on an affected system, in the security context of the logged on user.

Protection Overview

This protection will detect and block attempts to open a specially crafted web-page.

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

  1. In the IPS tab, click Protections and find the Internet Explorer Virtual Function Table Memory Corruption (MS11-081) 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 virtual function table memory corruption (MS11-081)

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