CIS CYBER SECURITY ADVISORIES

MS-ISAC CYBER SECURITY ADVISORY NUMBER:
2014-064

DATE(S) ISSUED:
08/12/2014

SUBJECT:
Vulnerability in Windows Media Center Could Allow Remote Code Execution (MS14-043)

OVERVIEW:

A vulnerability has been discovered in Windows Media Center that could allow for remote code execution. Windows Media Center is a media player and library application used to play audio and video and view images. This vulnerability can be exploited when a user opens a specially crafted Microsoft Office file that invokes Windows Media Center resources.

Successful exploitation could allow an attacker to gain the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

THREAT INTELLIGENCE
At this time, there is no known proof-of-concept code available.

SYSTEM AFFECTED:

  • Windows Vista
  • Windows 7
  • Windows 8
  • Windows 8.1

RISK:
Government:

  • Large and medium government entities: High
  • Small government entities: High

Businesses:

  • Large and medium business entities: High
  • Small business entities: High

Home users: High

TECHNICAL SUMMARY:
A vulnerability has been discovered in Windows Media Center that could allow for remote code execution. Windows Media Center is a media player and library application used to play audio and video and view images. This application is vulnerable on all supported editions of Windows Vista, all supported editions of Windows 7 except Starter and Home Basic editions, and Windows 8 and Windows 8.1 Professional editions. This vulnerability can be exploited when a user opens a specially crafted Microsoft Office file that invokes Windows Media Center resources.

Successful exploitation could allow an attacker to gain the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

RECOMMENDATIONS:
We recommend the following actions be taken:

  • Apply appropriate patches provided by Microsoft to vulnerable systems immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to download, accept, or execute files from un-trusted or unknown sources.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

REFERENCES:
Microsoft:
https://technet.microsoft.com/en-us/library/security/MS14-043

CVE:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4060