Check Point Advisories

Microsoft DirectX SAMI File Parsing Code Execution (MS07-064; CVE-2007-3901)

Vulnerability
Protection

Check Point Reference:	CPAI-2007-141
Date Published:	17 Dec 2007
Severity:	High
Last Updated:	Sunday 01 June, 2014
Source:
Industry Reference:	CVE-2007-3901
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description	Microsoft DirectX is a set of libraries that aim for accelerated video and audio experience on Microsoft Windows operating system. DirectX can parse various file formats which include SAMI files. Synchronized Accessible Media Interchange (SAMI) files are text files that contain the text strings used for synchronized closed captions, subtitles, and audio descriptions. A remote code execution vulnerability has been reported in Microsoft DirectX. A remote attacker can exploit this vulnerability via a specially crafted SAMI file. Successful exploitation of the vulnerability allows execution of arbitrary code on a vulnerable system.

Protection Overview

This protection will detect and block the transferring of malformed SAMI files 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 / R65

In the IPS tab, click Protections and find the Microsoft DirectX SAMI File Parsing Code Execution (MS07-064) 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 DirectX SAMI file parsing code execution (MS07-064)