Check Point Advisories

Microsoft Windows ASF File Media Header Parsing Code Execution (MS09-047; CVE-2009-2498)

Check Point Reference: CPAI-2009-173
Date Published: 8 Sep 2009
Severity: Critical
Last Updated: Wednesday 28 November, 2018
Industry Reference:CVE-2009-2498
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65

Who is Vulnerable?
Vulnerability Description ASF (Advanced Systems Format) is a file format that stores audio and video information and is specially designed to run over networks like the Internet. It is a compressed format that contains streaming audio, video, slide shows, and synchronized events. ASF enables content to be delivered as a continuous flow of data. ASF files may have the file extensions ASF, WMV, or WMA. A remote code execution vulnerability has been reported in the way Microsoft Windows handles specially crafted ASF format files. The vulnerability is due the Windows component responsible for processing ASF files that fails to properly handle specially crafted ASF files with malformed headers. A remote attacker could exploit this issue by convincing a user to open a specially crafted ASF file or receive specially crafted streaming content. Successful exploitation of this vulnerability will allow the attacker to execute arbitrary code on an affected system remotely.

Protection Overview

This protection will detect and block the transferring of malformed ASF 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

  1. In the IPS tab, click Protections and find the Microsoft Windows ASF File Media Header Parsing Code Execution (MS09-047) 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:  Content Protection Violation.
Attack Information:  Microsoft Windows ASF File Media Header Parsing Code Execution (MS09-047)

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