Check Point Advisories

Mozilla Firefox XSL Transformation Memory Corruption (CVE-2009-1169)

Check Point Reference: CPAI-2009-343
Date Published: 31 Mar 2010
Severity: Critical
Last Updated: 4 Jan 2017
Source: Mozilla Foundation 2009-12
Industry Reference:CVE-2009-1169
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable? Mozilla Foundation Firefox prior to 3.0.8
Mozilla Foundation SeaMonkey prior to 1.1.16
Vulnerability Description A memory corruption vulnerability exists in Mozilla Firefox. The flaw is due to insufficient validation while processing a malicious XSL stylesheet. A remote attacker can exploit this vulnerability by enticing the target user to open a crafted webpage. In a successful attack that arbitrary code being injected and executed on the vulnerable target host, the behaviour of the target system is dependent on the malicious code. Note that any code executed by the attacker runs with the privileges of the logged in user. In an attack where code execution fails, the vulnerable application will terminate abnormally while parsing the malicious document.

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

  1. In the IPS tab, click Protections and find the Mozilla Firefox XSL Transformation Memory Corruption 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:  Mozilla Firefox XSL Transformation Memory Corruption

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