TippingPoint Zero Day Initiative
 

Microsoft Office Word 2007 plcffldMom Parsing Remote Code Execution Vulnerability

ZDI-10-151: August 11th, 2010

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10129. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Word. 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 the code responsible for parsing the plcffldMom structure within .doc files. By crafting malicious values within this structure an attacker can force the program to make faulty heap memory allocations. This can be leveraged to execute remote code under the context of the user running the application.

Vendor Response

Microsoft has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2010-06-02 - Vulnerability reported to vendor
    2010-08-11 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous