Check Point Advisories

Firefox Image File Dragging Malformed Extension (CVE-2005-0230)

Vulnerability
Protection

Check Point Reference:	CPAI-2005-292
Date Published:	31 Dec 2009
Severity:	High
Last Updated:	Sunday 19 April, 2015
Source:
Industry Reference:	CVE-2005-0230
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The Mozilla web browser and its derivatives, Firefox, Netscape, and K-Meleon are applications designed for tasks related to browsing the web, such as displaying HTML encoded pages and downloading files. The Mozilla web browser allows the user to quickly save images displayed on web pages by dragging them from the browser window to the Desktop or a Windows Explorer window. A vulnerability exists in the way Mozilla Firefox treats image files that have non-image extensions. If a user drags an image file with an executable extension to the desktop or a Windows Explorer window, it is saved with its extension. In case of an attack, a malicious file that contains both valid image data and malicious code, will be executed when the user double-clicks on the saved file.

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

In the IPS tab, click Protections and find the Firefox Image File Dragging Malformed Extension protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Client Enforcement Violation.
Attack Information: Firefox image file dragging malformed extension