Windows Media Player ASX playlist buffer overflow

Notification Type: IBM Internet Security Systems Protection Alert
Notification Date: Dec. 6, 2006
Notification Version: 1.0
   
Name: Windows Media Player ASX playlist buffer overflow
Public disclosure/
In the wild date:		 Dec. 6, 2006
Classification(s): vulnerability, poc (dos only as of Dec 6, 2006)
CVE: CVE-2006-6134
Description:

X-Force is tracking a recently disclosed vulnerability in Microsoft Windows Media Player. Users may be enticed to retrieve a malformed Advanced Stream Redirector (.ASX) file resulting in remote code execution under the security context of the current user.

 

ISS Coverage

Product

Content Version

Network Sensor 7.0
Proventia A
Proventia IPS (G/GX) prior to Firmware Version 1.2
Server Sensor 7.0

 24.52

Proventia IPS (G/GX) Firmware Version 1.2 or
later
Proventia Multifunction Appliance
Proventia Server (Linux)

1.91

Proventia Server (Windows)

1.0.914.1920

Proventia Desktop

8.0.x.1920

RealSecure Desktop 7.0 (AM SP 6.75 or 7.75)

EPX

BlackICE PC Protection 3.6

CPX
Propagation Techniques ISS Protection Available

remote exploits
malicious URLs
email

 ASX_WindowsMedia_Playlist_Overflow est. Dec 7, 2006

Detailed Description
Business Impact:  A successful compromise of an affected version of Windows Media Player leaves the attacker in control of the targeted host with the security context of the current user. This can result in exposure of confidential information, loss of productivity, and further network compromise.
CVSS: Base Score:  8.0
  Access Vector:  Remote
Access Complexity:  High
Authentication:  Not Required
Confidentiality Impact:  Complete
Integrity Impact:  Complete
Availability Impact:  Complete
Impact Bias:  Normal
Adjusted Temporal Score:  7.2
  Exploitability:  Proof-of-concept
Remediation Level:  Unavailable
Report Confidence:  Confirmed
Affected Products:  Microsoft Corporation: Windows Media Player 10

Other versions may be affected. Please contact the vendor for additional information.

Technical Description: Windows Media Player is vulnerable to a heap-based buffer overflow due to improper handling of malformed Advanced Stream Redirector (.ASX) files. These files are used to allow Windows Media Player to retrieve content from a specific location. An attacker could use a malformed .ASX to trigger the overflow condition resulting in arbitrary code execution. This attack will most likely come in the form of a malicious .ASX hosted on a website, but may also come as an e-mail attachment or use other vectors.

References
XFDB: http://xforce.iss.net/xforce/xfdb/30586 

Revision History
Dec 6, 2006: Version 1.0

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