Microsoft Windows Media Encoder 9 'wmex.dll' ActiveX Control Remote Buffer Overflow Vulnerability

BID:31065

Info

Microsoft Windows Media Encoder 9 'wmex.dll' ActiveX Control Remote Buffer Overflow Vulnerability

Bugtraq ID: 31065
Class: Boundary Condition Error
CVE: CVE-2008-3008
Remote: Yes
Local: No
Published: Sep 09 2008 12:00AM
Updated: Sep 25 2008 06:59PM
Credit: Nguyen Minh Duc and Le Manh Tung with Bach Khoa Internetwork Security Center (BKIS) Hanoi University of Technology (Vietnam)
Vulnerable: Nortel Networks Self-Service WVADS 0
Nortel Networks Self-Service Speech Server 0
Nortel Networks Self-Service Peri Workstation 0
Nortel Networks Self-Service Peri Application 0
Nortel Networks Self-Service CCXML 0
Nortel Networks Self-Service - CCSS7 0
Nortel Networks Self Service VoiceXML 0
Nortel Networks Multimedia Comm MCS5100
Nortel Networks Media Processing Svr 500 Rel 3.0
Nortel Networks Media Processing Svr 1000 Rel 3.0
Nortel Networks Media Processing Svr 100 0
Microsoft Windows Media Encoder 9 x64
+ Microsoft Advanced Windows Media Plug-In for Adobe Premier 6.5 (Beta)
 Microsoft Windows Media Encoder 9
+ Microsoft Advanced Windows Media Plug-In for Adobe Premier 6.5 (Beta)
 HP Storage Management Appliance III
HP Storage Management Appliance II
HP Storage Management Appliance I
HP Storage Management Appliance 2.1
+ HP Storage Management Appliance III
 + HP Storage Management Appliance II
 + HP Storage Management Appliance I
Not Vulnerable:

Discussion

Microsoft Windows Media Encoder 9 'wmex.dll' ActiveX Control Remote Buffer Overflow Vulnerability

The Microsoft Windows Media Encoder 9 ActiveX control is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied input.

An attacker can exploit this issue to execute arbitrary code in the context of an application using the affected ActiveX control (typically Internet Explorer). Failed attacks will likely cause denial-of-service conditions.

Exploit / POC

Microsoft Windows Media Encoder 9 'wmex.dll' ActiveX Control Remote Buffer Overflow Vulnerability

To exploit this issue an attacker must entice an unsuspecting user to open a malicious web document.

The following proof of concept and exploit are available for Immunity CANVAS:

https://www.immunityinc.com/downloads/immpartners/ms08_053.tar.gz
https://www.immunityinc.com/downloads/immpartners/ms08_053-2.tar.gz

Core Security Technologies has developed a working commercial exploit for its CORE IMPACT product. This exploit is not otherwise publicly available or known to be circulating in the wild.

NOTE: Symantec has detected active in-the-wild exploits of this issue.

The following exploit code is available:

Solution / Fix

Microsoft Windows Media Encoder 9 'wmex.dll' ActiveX Control Remote Buffer Overflow Vulnerability

Solution:
Microsoft has released an advisory along with fixes to address this issue. Please see the references for more information.


Microsoft Windows Media Encoder 9

Microsoft Windows Media Encoder 9 x64

References

Microsoft Windows Media Encoder 9 'wmex.dll' ActiveX Control Remote Buffer Overflow Vulnerability

References:
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