Check Point Advisories

Internet Explorer OnLoad Event Memory Corruption (MS11-081; CVE-2011-1997)

Check Point Reference: CPAI-2011-455
Date Published: 11 Oct 2011
Severity: Critical
Last Updated: 22 Dec 2016
Source: Microsoft Security Bulletin MS11-081
Industry Reference:CVE-2011-1997
Protection Provided by:

Security Gateway
R80, R77, R76, R75, R71, R70

Who is Vulnerable? Internet Explorer 6
Vulnerability Description A memory corruption vulnerability has been reported in Internet Explorer.The vulnerability is due to an error in the way IE accesses objects that have been deleted. 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.
Update/Patch AvaliableApply patches from: MS11-081

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

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 / R76 / R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Internet Explorer OnLoad Event Memory Corruption (MS11-081) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Internet Explorer onLoad event memory corruption (MS11-081)

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