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securityvulnsSecurityvulnsSECURITYVULNS:DOC:20491
HistorySep 10, 2008 - 12:00 a.m.

[Full-disclosure] Assurent VR - Microsoft Windows Graphics Rendering Engine WMF Parsing Buffer Overflow

2008-09-1000:00:00
vulners.com
11

Microsoft Windows Graphics Rendering Engine WMF Parsing Buffer Overflow

Assurent ID: FSC20080909-12

  1. Affected Software

Digital Image Suite 2006
Forefront Client Security 1.0
Microsoft Office 2003 SP2, SP3
Microsoft Office PowerPoint Viewer 2003
Microsoft Windows XP prior to SP3
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Works 8

Reference: http://www.microsoft.com/

  1. Vulnerability Summary

A vulnerability has been discovered in the Graphics Rendering Engine (GRE)
component of Microsoft Windows. Specifically this vulnerability is exposed
by the Microsoft Windows GDI+ subsystem. The vulnerability is created by an
error in parsing certain Windows Metafile (WMF) files, a standard image file
format used by many commonly-used software applications.

  1. Vulnerability Analysis

A remote attacker may exploit the vulnerability by sending a malicious WMF
file to the target system and enticing the target user to view or preview
it. A successful code execution attempt will result in arbitrary code to be
executed within the security privileges of the currently logged in user. An
unsuccessful attack attempt will result in abnormal termination of the
program used for opening the malicious file.

Applications affected by this vulnerability include Windows Explorer,
Internet Explorer, Microsoft Paint, Windows Picture and Fax Viewer, and
various Microsoft Office products. Note that the vulnerable file may be
embedded inside other formats in the form of OLE objects, allowing the
malicious file to appear as RTF files, Microsoft Office documents, or other
formats.

  1. Vulnerability Detection

Assurent has confirmed the vulnerability in:

Digital Image Suite 2006
Forefront Client Security 1
Microsoft Office 2003 SP2, SP3
Microsoft Office PowerPoint Viewer 2003
Microsoft Windows XP prior to SP3
Microsoft Windows Vista
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Works 8

  1. Workaround

Apply the vendor patch, remove file associations to WMF files to avoid
opening them, disable thumbnail previews while browsing files, or block the
downloading of WMF resources from untrusted networks.

  1. Vendor Response

Microsoft has released a bulletin addressing this vulnerability.

Reference: http://www.microsoft.com/technet/security/Bulletin/MS08-052.mspx

  1. Disclosure Timeline

2007-03-20 Reported to vendor
2007-03-22 Initial vendor response
2008-09-09 Coordinated public disclosure

  1. Credits

Vulnerability Research Team, Assurent Secure Technologies, a TELUS company

  1. References

CVE: CVE-2008-3014
Vendor: MS08-052

  1. About Assurent VRS

Assurent's Vulnerability Research Service (VRS) for security product
vendors, and Threat Protection Programs (TPP) for MSPs and enterprise
security teams, help to eliminate the significant costs incurred by security
product vendors, MSPs, and enterprise security teams in responding to and
managing critical new security vulnerabilities and other threats including
worm & virus outbreaks and other malware. The VRS and TPP services are
real-time feeds providing subscribers with detailed analysis of the top
security vulnerabilities, focused on the specific needs of each group of
customers.

http://www.assurent.com/index.php?id=17

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