Check Point Advisories

Internet Explorer Redirect CDL Protocol Memory Corruption (MS11-050; CVE-2011-1262)

Check Point Reference: CPAI-2011-299
Date Published: 10 Jun 2011
Severity: Critical
Last Updated: Tuesday 27 September, 2011
Source:
Industry Reference:CVE-2011-1262
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 Internet Explorer. The vulnerability is due to a memory corruption error in Internet Explorer when handling CDL protocol. 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 Redirect CDL Protocol 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 redirect CDL protocol memory corruption (MS11-050)

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