FortiGuard Advisory (FGA-2005-17)

Arbitrary Code Execution Vulnerability in Microsoft Windows WMF Handling
2005.December.28

Fortinet advises that its FortiGate security appliances, FortiMail antispam appliances and FortiClient Host Security software protect against the "0-day" Microsoft Windows Metafile Vulnerability, a vulnerability in the Graphics Rendering Engine that could allow code execution upon viewing a malicious file. Multiple versions of Microsoft Windows were reported to be vulnerable. Any application that displays or renders WMF files by calling the API of SHIMGVW.DLL is vulnerable, including Internet Explorer, Mozilla Firefox, Opera and Outlook.

Secunia marked this threat as "extremely critical" and more information on Secunia's related advisory can be found here: http://secunia.com/advisories/18255/

To protect against this "0-day" vulnerability, Fortinet created an antivirus signature as follows: W32/WMF-exploit

Fortinet's description of this exploit can be found here: W32/WMF-exploit

In addition, Fortinet created IPS signatures to block the exploit traffic as follows:



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About Fortinet ( www.fortinet.com ):

Fortinet is the pioneer and leading provider of ASIC-accelerated unified threat management, or UTM, security systems, which are used by enterprises and service providers to increase their security while reducing total operating costs. Fortinet solutions were built from the ground up to integrate multiple levels of security protection--including firewall, antivirus, intrusion prevention, VPN, spyware prevention and anti-spam -- designed to help customers protect against network and content level threats. Leveraging a custom ASIC and unified interface, Fortinet solutions offer advanced security functionality that scales from remote office to chassis-based solutions with integrated management and reporting. Fortinet solutions have won multiple awards around the world and are the only security products that are certified in six programs by ICSA Labs: (Firewall, Antivirus, IPSec, SSL, Network IPS, and Anti-Spyware). Fortinet is privately held and based in Sunnyvale, California.