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Vulnerability Note VU#253825

Microsoft Excel fails to properly process files with crafted filter records

Overview

A vulnerability in Microsoft Excel could allow a remote attacker to execute arbitrary code on a vulnerable system.

I. Description

Microsoft Excel fails to validate certain filter records contained in Excel documents. This flaw results in an unspecified memory corruption vulnerability that could allow an attacker to execute arbitrary code when Excel opens documents containing specially crafted filter records.

This vulnerability could be exploited remotely in the form of a specially crafted Excel file supplied by a web page or in an email message to the victim user. Microsoft states that in order for an attack to be successful, a victim user must manually open a malicious attachment sent in an email message.

II. Impact

An attacker with the ability to supply a specially crafted Microsoft Excel file could execute arbitrary code on a vulnerable system. The attacker-supplied code would be executed with the privileges of the user opening the malicious file.

III. Solution

Apply a patch from the vendor


Microsoft has addressed this issue in Microsoft Security Bulletin MS07-023. Users should review this bulletin and apply the patches it refers to.

Systems Affected

VendorStatusDate NotifiedDate Updated
Microsoft CorporationVulnerable8-May-2007

References


http://www.microsoft.com/technet/security/bulletin/ms07-023.mspx
http://secunia.com/advisories/25150/
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=527

Credit

This vulnerability was reported by Microsoft. Microsoft, in turn, acknowledges Greg MacManus of iDefense Labs for reporting this vulnerability to them.

This document was written by Chad R Dougherty.

Other Information

Date Public:2007-05-08
Date First Published:2007-05-08
Date Last Updated:2007-05-10
CERT Advisory: 
CVE-ID(s):CVE-2007-1214
NVD-ID(s):CVE-2007-1214
US-CERT Technical Alerts: 
Metric:16.20
Document Revision:10

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