Check Point Advisories

Mozilla Thunderbird WYSIWIG Engine Filtering IFRAME JavaScript Execution (CVE-2006-0884)

Check Point Reference: CPAI-2006-162
Date Published: 28 Oct 2009
Severity: Medium
Last Updated: Tuesday 30 July, 2013
Source:
Industry Reference:CVE-2006-0884
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Mozilla Thunderbird is an email client application often seen as an alternative to the mainstream Microsoft email clients. Thunderbird supports various email delivering protocols such as SMTP, IMAP and POP3. The program is also capable of reading and composing HTML formatted email messages. A Javascript execution vulnerability exists in the Mozilla Thunderbird application. The vulnerability allows Javascript execution in the composer window regardless of the security restriction settings. This may allow the attacker to execute arbitrary Javascript when a target user replies to a malicious HTML formatted email message. The behaviour of the target system is dependent on the code executed in the Javascript. Only functionality available through Javascript will be available to an attacker. In some cases, it has been observed that the Thunderbird application may terminate as a result of the execution of malicious script.

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 Thunderbird WYSIWIG Engine Filtering IFRAME JavaScript Execution 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:  NNTP Protection Violation.
Attack Information:  Mozilla Thunderbird WYSIWIG engine filtering IFRAME Javascript execution

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