TippingPoint Zero Day Initiative

Microsoft Office Excel DBQueryExt Record Unspecified ADO Object Remote Code Execution Vulnerability

ZDI-10-103: June 8th, 2010


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9829. For further product information on the TippingPoint IPS:

Vulnerability Details

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

The specific flaw exists in the parsing of DBQueryExt records in an Excel spreadsheet. Due to the lack of checking when parsing particular fields within the structure, it is possible to get a user-controlled pointer to be called. Successful exploitation can lead to remote code execution under the credentials of the currently logged in user.

Vendor Response

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

Disclosure Timeline

    2010-01-06 - Vulnerability reported to vendor
    2010-06-08 - Coordinated public release of advisory


This vulnerability was discovered by: