Multiple Microsoft DirectShow Remote Code Execution Vulnerabilities

Notification Type: IBM Internet Security Systems Protection Alert
Notification Date: Dec. 11, 2007
Notification Version: 1.0
   
Name: Multiple Microsoft DirectShow Remote Code Execution Vulnerabilities
Public disclosure/
In the wild date:
Dec. 11, 2007 (vuln disclosure)
CVE: CVE-2007-3901 and CVE-2007-3895
Description:

Two vulnerabilities in Microsoft DirectShow could allow remote code execution.  By creating a malicious file and enticing a user to click a link or open a file, an attacker could remotely execute unauthorized code with the privileges of the user.

 

ISS Coverage

Product Content Version
Network Sensor 7.0
Proventia A
Proventia IPS (G/GX)
Server Sensor 7.0
Proventia Multifunction Appliance
Proventia Server (Linux)
27.120
Proventia Server (Windows)
Proventia Desktop
x.x.x.2130
BlackICE PC Protection 3.6 CQS
Propagation Techniques ISS Protection Available
remote exploit SAMI_DirectShow_Overflow
RIFF_WAV_DirectShow_Overflow
Dec 11, 2007
Dec 11, 2007

Detailed Description

Business Impact:

Microsoft DirectShow is a software interface used by most Windows-based applications, such as Microsoft Media Player, that manage multimedia files.  Although this vulnerability may require some user interaction, a successful exploit would result in remote code execution and possibly complete compromise of the system.  The widespread nature of Microsoft DirectShow coupled with the impact of the vulnerability means this issue should be considered highly critical.

CVSS  for XFIDs 38721 and 38722: Base Score: 9.3
  Access Vector: Network
Access Complexity:
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Complete
Adjusted Temporal Score: 6.9
  Exploitability: Unproven
Remediation Level: Official-Fix
Report Confidence: Confirmed
Affected Products: For a full list of affected versions, see references below.
Technical Description:

Vulnerabilities in Microsoft DirectShow could allow a remote attacker to execute arbitrary code on the system when specially-crafted parameters in a Synchronized Accessible Media Interchange (SAMI) file (XFID 38721), .WAV file (XFID 38722), or .AVI file (XFID 38722) are parsed. An attacker could exploit this vulnerability by persuading a victim to open a malicious file in an email or click a link to a web page that loads the file.

Remediation:

Patches are available for this issue. See References for details.

References

XFDB http://xforce.iss.net/xforce/xfdb/38721
http://xforce.iss.net/xforce/xfdb/38722
Microsoft: http://www.microsoft.com/technet/security/Bulletin/MS07-064.mspx

Revision History

1.0

Initial publication.


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