Check Point Advisories

Microsoft DirectShow MJPEG Decompression Remote Code Execution (MS09-011; CVE-2009-0084)

Vulnerability
Protection

Check Point Reference:	CPAI-2009-080
Date Published:	14 Apr 2009
Severity:	Critical
Last Updated:	Tuesday 14 April, 2009
Source:
Industry Reference:	CVE-2009-0084
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	Microsoft DirectShow is used for streaming media on Microsoft Windows operating systems. The DirectShow technology performs client-side audio and video sourcing, manipulation and rendering.An MJPEG file is a media file where a number of JPEG images are connected together to create a video stream. The MJPEG video stream can then be inserted into an AVI or other common video formatted file. The vulnerability is due to an error in the Microsoft DirectShow component that fails to properly handle specially crafted compressed files. An attacker can exploit this flaw to execute arbitrary code on a vulnerable system via a specially crafted MJPEG file. Successful exploitation of this issue may allow the attacker to take complete control of an affected system.

Protection Overview

This protection will detect and block the transferring of AVI files that contain a malformed JPEG over HTTP.

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 / R71 / R70

In the IPS tab, click Protections and find the Microsoft DirectShow MJPEG Decompression Remote Code Execution (MS09-011) 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: Content Protection Violation.
Attack Information: Microsoft DirectShow MJPEG decompression remote code execution (MS09-011)