Australia's Leading Computer Emergency Response Team

AL-2009.0030 -- [Win] -- Microsoft DirectX: Execute Arbitrary Code
Date: 15 April 2009
Original URL: http://www.auscert.org.au/render.html?cid=21&it=10812

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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2009.0030 -- AUSCERT ALERT
                                   [Win]
                 Microsoft DirectX: Execute Arbitrary Code
                               15 April 2009

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        AusCERT Alert Summary
        ---------------------

Product:              Microsoft Windows 2000 Service Pack with DirectX 8.1
                      Microsoft Windows 2000 Service Pack 4 with DirectX 
                        9.0*
                      Windows XP Service Pack 2 with DirectX 9.0*
                      Windows XP Service Pack 3 with DirectX 9.0*
                      Windows XP Professional x64 Edition with DirectX 9.0*
                      Windows XP Professional x64 Edition Service Pack 2 
                        with DirectX 9.0*
                      Windows Server 2003 Service Pack 1 with DirectX 9.0*
                      Windows Server 2003 Service Pack 2 with DirectX 9.0*
                      Windows Server 2003 x64 Edition with DirectX 9.0*
                      Windows Server 2003 x64 Edition Service Pack 2 with 
                        DirectX 9.0*
                      Windows Server 2003 with SP1 for Itanium-based 
                        Systems with DirectX 9.0*
                      Windows Server 2003 with SP2 for Itanium-based 
                        Systems with DirectX 9.0*
Publisher:            Microsoft
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-0084

Original Bulletin:    
  http://www.microsoft.com/technet/security/Bulletin/ms09-011.mspx

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Microsoft Security Bulletin MS09-011 - Critical

Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution 
(961373)

   Published: April 14, 2009

   Version: 1.0

General Information

Executive Summary

   This security update resolves a privately reported vulnerability in 
   Microsoft DirectX. The vulnerability could allow remote code execution if 
   user opened a specially crafted MJPEG file. An attacker who successfully 
   exploited this vulnerability could take complete control of an affected 
   system. An attacker could then install programs; view, change, or delete 
   data; or create new accounts with full user rights. Users whose accounts 
   are configured to have fewer user rights on the system could be less 
   impacted than users who operate with administrative user rights.

   This security update is rated Critical for all supported editions of 
   Microsoft Windows 2000, Windows XP, and Windows Server 2003. For more 
   information, see the subsection, Affected and Non-Affected Software, in 
   this section.

   The security update addresses the vulnerability by correcting the way 
   that DirectShow decompresses media files. For more information about the 
   vulnerability, see the Frequently Asked Questions (FAQ) subsection for 
   the specific vulnerability entry under the next section, Vulnerability 
   Information.

Affected Software 

   Microsoft Windows 2000 Service Pack with DirectX 8.1
   Microsoft Windows 2000 Service Pack 4 with DirectX 9.0*
   Windows XP Service Pack 2 and Windows XP Service Pack 3 with DirectX 
     9.0*
   Windows XP Professional x64 Edition and Windows XP Professional x64 
     Edition Service Pack 2 with DirectX 9.0*
   Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 
     2 with DirectX 9.0*
   Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition 
     Service Pack 2 with DirectX 9.0*
   Windows Server 2003 with SP1 for Itanium-based Systems and Windows 
     Server 2003 with SP2 for Itanium-based Systems with DirectX 9.0*

   *The update for DirectX 9.0 also applies to DirectX 9.0a, DirectX 9.0b, 
   and DirectX 9.0c.

Vulnerability Information

MJPEG Decompression Vulnerability - CVE-2009-0084

A remote code execution vulnerability exists in the way Microsoft DirectShow
handles supported format files. This vulnerability could allow code 
execution if a user opened a specially crafted MJPEG file. If a user is 
logged on with administrative user rights, an attacker who successfully 
exploited this vulnerability could take complete control of an affected 
system. An attacker could then install programs; view, change, or delete 
data; or create new accounts with full user rights. Users whose accounts are 
configured to have fewer user rights on the system could be less impacted 
than users who operate with administrative user rights.

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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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