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Vulnerability: MS08-076. Vulnerabilities in Windows Media Components Could Allow Remote Code Execution (959807)

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  Details
Vulnerability name/brief description Vulnerabilities in Windows Media Components Could Allow Remote Code Execution (959807) - MS08-076
CVE/CAN name CVE-2008-3009, CVE-2008-3010
Vendor threat level Important
SophosLabs threat level Medium
Solution Users are advised to apply the vendor patch for MS08-076  as soon as possible.
Vendor description This security update resolves two privately reported vulnerabilities in the following Windows Media components: Windows Media Player, Windows Media Format Runtime, and Windows Media Services. The most severe vulnerability could allow remote code execution. 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.
SophosLabs comments

The patched vulnerabilities may result in a successful login attempt by a remote attacker. The vulnerability exists due to weaknesses in Service Principal Name (SPN) implementations within Windows Media components. This vulnerability has been assigned medium threat level.

SophosLabs testing result N/A
Currently known exploits  At the time of writing SophosLabs has seen no samples of malware attempting to exploit this vulnerability. Should this situation change samples will be analysed and we will take action as necessary.
First sample seen N/A
Discovery date 9 December 2008
Affected software Windows Media Player 6.4
Windows Media Format Runtime 7.1
Windows Media Format Runtime 9.0
Windows Media Format Runtime 9.5
Windows Media Format Runtime 11
Windows Media Services 4.1
Windows Media Services 9 Series
Windows Media Services 2008.
References

http://www.microsoft.com/technet/security/Bulletin/ms08-076.mspx
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3009
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3010

Credits

Microsoft MAPP program

Revisions

10 December 2008 - initial analysis written

Explanation of terms

Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.

CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.

Vendor Threat Level:

Threat level assigned by the vendor

SophosLabs Threat Level:
Threat level assigned by SophosLabs

  • LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
  • MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
  • HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
  • CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.

Solution:
Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.

Vendor Description:
Summary of the cause and potential effect of the vulnerability provided by the vendor.

SophosLabs Comments:
SophosLabs' opinions and observations of the vulnerability in question.

SophosLabs Testing Result:
Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.

Currently Known Exploits:
List of identities for known exploits, if applicable.

First Sample Seen:
Date of the first sample seen by SophosLabs.

Discovery Date:
Date of the earliest known publically disclosed advisory.

Affected Software:
Vulnerable platforms and software versions.

 

 

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