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  3. Microsoft Windows Graphics Rendering Engine WMF/EMF Format Code Execution Vulnerability

Microsoft Windows Graphics Rendering Engine WMF/EMF Format Code Execution Vulnerability

Risk

High

Date Discovered

November 8, 2005

Description

Microsoft Windows WMF/EMF graphics rendering engine is affected by a remote code execution vulnerability. The problem presents itself when a user views a malicious WMF or EMF formatted file causing the affected engine to attempt to parse it. Exploitation of this issue can trigger an integer overflow that may facilitate heap memory corruption and arbitrary code execution. Any code execution that occurs will be with SYSTEM privileges due to the nature of the affected engine. Successful exploitation can facilitate a remote compromise or local privilege escalation.

Technologies Affected

  • Avaya DefinityOne Media Servers
  • Avaya DefinityOne Media Servers R10
  • Avaya DefinityOne Media Servers R11
  • Avaya DefinityOne Media Servers R12
  • Avaya DefinityOne Media Servers R6
  • Avaya DefinityOne Media Servers R7
  • Avaya DefinityOne Media Servers R8
  • Avaya DefinityOne Media Servers R9
  • Avaya IP600 Media Servers
  • Avaya IP600 Media Servers R10
  • Avaya IP600 Media Servers R11
  • Avaya IP600 Media Servers R12
  • Avaya IP600 Media Servers R6
  • Avaya IP600 Media Servers R7
  • Avaya IP600 Media Servers R8
  • Avaya IP600 Media Servers R9
  • Avaya Modular Messaging (MAS)
  • Avaya S8100 Media Servers
  • Avaya S8100 Media Servers R10
  • Avaya S8100 Media Servers R11
  • Avaya S8100 Media Servers R12
  • Avaya S8100 Media Servers R6
  • Avaya S8100 Media Servers R7
  • Avaya S8100 Media Servers R8
  • Avaya S8100 Media Servers R9
  • Avaya Unified Communications Center S3400
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Advanced Server SP1
  • Microsoft Windows 2000 Advanced Server SP2
  • Microsoft Windows 2000 Advanced Server SP3
  • Microsoft Windows 2000 Advanced Server SP4
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Datacenter Server SP1
  • Microsoft Windows 2000 Datacenter Server SP2
  • Microsoft Windows 2000 Datacenter Server SP3
  • Microsoft Windows 2000 Datacenter Server SP4
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Professional SP1
  • Microsoft Windows 2000 Professional SP2
  • Microsoft Windows 2000 Professional SP3
  • Microsoft Windows 2000 Professional SP4
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Server SP1
  • Microsoft Windows 2000 Server SP2
  • Microsoft Windows 2000 Server SP3
  • Microsoft Windows 2000 Server SP4
  • Microsoft Windows Server 2003 Datacenter Edition
  • Microsoft Windows Server 2003 Datacenter Edition Itanium
  • Microsoft Windows Server 2003 Datacenter Edition Itanium SP1
  • Microsoft Windows Server 2003 Datacenter Edition SP1
  • Microsoft Windows Server 2003 Datacenter x64 Edition
  • Microsoft Windows Server 2003 Enterprise Edition
  • Microsoft Windows Server 2003 Enterprise Edition Itanium
  • Microsoft Windows Server 2003 Enterprise Edition Itanium SP1
  • Microsoft Windows Server 2003 Enterprise Edition SP1
  • Microsoft Windows Server 2003 Enterprise x64 Edition
  • Microsoft Windows Server 2003 Standard Edition
  • Microsoft Windows Server 2003 Standard Edition SP1
  • Microsoft Windows Server 2003 Standard x64 Edition
  • Microsoft Windows Server 2003 Web Edition
  • Microsoft Windows Server 2003 Web Edition SP1
  • Microsoft Windows XP 64-bit Edition
  • Microsoft Windows XP Home
  • Microsoft Windows XP Home SP1
  • Microsoft Windows XP Home SP2
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows XP Media Center Edition SP1
  • Microsoft Windows XP Media Center Edition SP2
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Professional SP1
  • Microsoft Windows XP Professional SP2
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows XP Tablet PC Edition SP1
  • Microsoft Windows XP Tablet PC Edition SP2

Recommendations

Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.

Do not allow untrusted individuals to have local access to computers. This may limit exposure to local attack vectors.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.

Deploy network intrusion detection systems to monitor all network traffic for signs of suspicious or anomalous activity. This may aid in detecting attempts to exploit latent vulnerabilities or in detecting malicious activity that occurs as a result of successful exploitation.

Do not accept or execute files from untrusted or unknown sources.

Users should not accept files from untrusted or unknown sources as they may be malicious in nature.

Do not follow links provided by unknown or untrusted sources.

Users should avoid Web sites of questionable integrity and not follow links supplied by unknown or untrusted sources.

Do not accept communications that originate from unknown or untrusted sources.

Disabling client support for HTML email may limit exposure to this attack vector.

Implement multiple redundant layers of security.

As it may be possible that this issue will be leveraged to execute code, memory protection schemes are recommended. Memory protection schemes such as non-executable stack/heap configurations and randomly mapped memory segments will complicate exploitation of memory corruption vulnerabilities.
Microsoft has released a bulletin that includes fixes to address this issue for supported versions of the operating system. Avaya advisory ASA-2005-228 has been released to identify vulnerable Avaya packages. Avaya recommends customers to apply fixes supplied by Microsoft. Please see the referenced advisory for more information.

Credits

Discovery is credited to eEye Digital Security.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the time of publishing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect, or consequential loss or damage arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Security Response, and secure@symantec.com are registered trademarks of Symantec Corp. and/or affiliated companies in the United States and other countries. All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners.

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