Advisory Details

December 13th, 2011

Microsoft Office 2007 Office Art Shape Record Hierarchy Parsing Remote Code Execution Vulnerability

ZDI-11-346
ZDI-CAN-1280

CVE ID CVE-2011-3413
CVSS SCORE 7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Microsoft
Microsoft
AFFECTED PRODUCTS Office Excel
Office PowerPoint
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11931. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office 2007. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within how the application processes a shape record hierarchy. Due to the application not properly checking the types of elements within containers, the application will incorrectly modify a property of the object. This modification can be used to cause memory corruption of the type which can lead to code execution under the context of the application.

VENDOR RESPONSE Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://technet.microsoft.com/en-us/security/bulletin/MS11-094 Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://technet.microsoft.com/en-us/security/bulletin/MS11-094
DISCLOSURE TIMELINE
  • 2011-06-29 - Vulnerability reported to vendor
  • 2011-12-13 - Coordinated public release of advisory
CREDIT Anonymous
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