Check Point Advisories

Mozilla NNTP URL Handling Buffer Overflow (CVE-2004-1316)

Check Point Reference: CPAI-2005-180
Date Published: 8 Nov 2009
Severity: High
Last Updated: Sunday 23 February, 2014
Source:
Industry Reference:CVE-2004-1316
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Mozilla is a popular open-source Internet communication suite produced by the Mozilla Foundation. This suite includes a web browser, a mail and news client, an HTML composer and an IRC chat client. The Mozilla news client is responsible for handling content delivered using the Network News Transfer Protocol (NNTP). A vulnerability has been reported in the way the Mozilla browser handles NNTP URLs. Due to insufficient input validation, a specially crafted URI using the scheme news:// can overflow a heap buffer. By enticing a user to follow a specially crafted NNTP URI, an attacker can remotely exploit this vulnerability in a way that allows for code injection and execution with the privileges of the currently logged in user. In a simple exploit attempt, an instance of a vulnerable Mozilla browser will open a connection with the server listening at the address and the port provided in the specially crafted URI. When the vulnerable function is called to process the commands embedded in the URI, the application will terminate with a memory access violation error. In a more sophisticated attack case, the process flow can be diverted allowing for arbitrary code execution. In such a case, the behaviour of the target is dependent on the nature of the injected code.

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

  1. In the IPS tab, click Protections and find the Mozilla NNTP URL Handling Buffer Overflow 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:  Mozilla NNTP URL handling buffer overflow

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