Antivirus and Security Software from Sophos

Psst, Mac user! We have a free Mac anti-virus just for you.

Online support

Product maintenance

Contact support

Support services

Resource centers

UK IT Security Events

Get the low-down on our cup winning security solutions to provide you with a defence dream team

Vulnerability: MS09-028 Vulnerabilities in Microsoft DirectShow Could Allow Remote Code Execution

Back to Latest vulnerabilities homepage

Click any highlighted term for further explanation.

 Details
Vulnerability name/brief descriptionVulnerabilities in Microsoft DirectShow Could Allow Remote Code Execution - MS09-028
CVE/CAN name

CVE-2009-1537, CVE-2009-1538, CVE-2009-1539

Vendor threat levelCritical
SophosLabs threat levelHigh
Solution

Users are advised to apply the vendor patch for MS09-028 .

Vendor description

This security update resolves one publicly disclosed vulnerability and two privately reported vulnerabilities in Microsoft DirectShow. The vulnerabilities could allow remote code execution if a user opened a specially crafted QuickTime media file. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the local user. 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

This bulletin resolves issues in Microsoft DirectX DirectShow, one of them already documented in Microsoft KB article 971778 and the SophosLabs analysis of the vulnerability . The attacker may be able to create a malicious Quick time file and publish it on a web page and take control over the victim's system. This issue is likely to be exploited by malware writers.

SophosLabs testing resultN/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 seenN/A
Discovery date28 May 2009
Affected software

DirectX 7.0 on Microsoft Windows 2000 Service Pack 4
DirectX 8.1 on Microsoft Windows 2000 Service Pack 4
DirectX 9.0 on Microsoft Windows 2000 Service Pack 4
DirectX 9.0 on Microsoft Windows XP Service Pack 2 and Service Pack 3
DirectX 9.0 on Microsoft Windows XP Professional x64 Service Pack 2
DirectX 9.0 on Microsoft Windows Server 2003 Service Pack 2
DirectX 9.0 on Microsoft Windows Server 2003 x64 Service Pack 2
DirectX 9.0 on Microsoft Windows Server 2003 Service Pack 2 for Itanium-based Systems

References

http://www.microsoft.com/technet/security/Bulletin/ms09-028.mspx
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1537
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1538

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1539

 

Credits

Microsoft MAPP program

Revisions

14 July 2009 - 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.

 

 

If you need more information or guidance, then please contact technical support.