ZDI-06-033: Microsoft Office Excel File Format DATETIME Record Parsing Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-06-033.html October 10, 2006
-- CVE ID: CVE-2006-2387
-- Affected Vendor: Microsoft
-- Affected Products: Microsoft Office 2000 SP3 Microsoft Office XP SP3 Microsoft Office 2003 SP1 / SP2 Microsoft Office 2004 for Mac Microsoft Office v.X for Mac Microsoft Works Suites 2004, 2005 and 2006
-- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since October 10, 2006 by Digital Vaccine protection filter ID 4746. For further product information on the TippingPoint IPS:
-- 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 user 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 DATETIME records, user-supplied data may be insecurely referenced thereby leading to the eventual execution of arbitrary code.
-- Vendor Response: Microsoft has issued an update to correct this vulnerability. More details can be found at:
-- Disclosure Timeline: 2006.06.15 - Vulnerability reported to vendor 2006.10.10 - Digital Vaccine released to TippingPoint customers 2006.10.10 - Coordinated public release of advisory
-- Credit: This vulnerability was discovered by Manuel Santamarina Suarez.
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