Advisory Details

March 14th, 2006

Microsoft Excel File Format Parsing Vulnerability

ZDI-06-004
ZDI-CAN-024

CVE ID CVE-2006-0028
CVSS SCORE
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Office Excel
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 4156. 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. Exploitation requires that the attacker coerce the target into opening a malicious .XLS file.

The specific flaw exists within the parsing of the BIFF file format used by Microsoft Excel. During the processing of malformed BOOLERR records, user-supplied data may be insecurely referenced thereby leading to the eventual execution of arbitrary code.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/bulletin/ms06-012.mspx
DISCLOSURE TIMELINE
  • 2006-01-24 - Vulnerability reported to vendor
  • 2006-03-14 - Coordinated public release of advisory
CREDIT Arnaud Dovi aka 'class101', http://heapoverflow.com
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