Advisory Details

April 12th, 2011

Microsoft Office PowerPoint PersistDirectoryEntry Remote Code Execution Vulnerability

ZDI-11-125
ZDI-CAN-901

CVE ID CVE-2011-0656
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Office PowerPoint
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10885. 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 PowerPoint. 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 handles an exception within the PersistDirectoryEntry records when loading a presentation. When an entry points to a container containing a Slide with a malformed record, the application will raise an exception during the loading of the record. Afterward the application will use a method off of this malformed object 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://www.microsoft.com/technet/security/Bulletin/MS11-022.mspx
DISCLOSURE TIMELINE
  • 2010-09-14 - Vulnerability reported to vendor
  • 2011-04-12 - Coordinated public release of advisory
CREDIT Anonymous
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