Check Point Advisories

Internet Explorer Page Refresh Uninitialized Memory Corruption (MS09-072; CVE-2009-3673)

Check Point Reference: CPAI-2009-263
Date Published: 8 Dec 2009
Severity: Critical
Last Updated: Tuesday 08 December, 2009
Source:
Industry Reference:CVE-2009-3673
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description Microsoft Internet Explorer is the most widely used Internet browser. A memory corruption vulnerability has been reported in Microsoft Internet Explorer. The vulnerability is due to the way Internet Explorer accesses an object that has not been correctly initialized or has been deleted. To trigger this issue, an attacker may create a malicious web page that will cause Internet Explorer to access exit unexpectedly. Successful exploitation of this vulnerability will crash the browser, and may allow execution of arbitrary code on the vulnerable system.

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 / R75 / R71 / R70 / R65

  1. In the IPS tab, click Protections and find the Internet Explorer Page Refresh Uninitialized Memory Corruption (MS09-072) 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 page refresh uninitialized memory corruption (MS09-072)

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