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
TREND MICRO CUSTOMER PROTECTION	Trend Micro 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.
ADDITIONAL DETAILS	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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