Check Point Advisories

Microsoft Office Excel Record Parsing Integer Overflow (MS10-080; CVE-2010-3230)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-280
Date Published:	7 Jun 2011
Severity:	High
Last Updated:	Tuesday 07 June, 2011
Source:
Industry Reference:	CVE-2010-3230
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The vulnerability is due to an integer overflow parsing in an Excel file. A code execution vulnerability has been reported in Microsoft Office Excel products. The vulnerability is due to an integer overflow when parsing a crafted record in an Excel file. An attacker can exploit this flaw to take complete control over a vulnerable system via a specially crafted Excel file.

Protection Overview

This protection will detect and block the transferring of malformed Excel files over HTTP.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Microsoft Office Excel Record Parsing Integer Overflow (MS10-080) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Content Protection Violation.
Attack Information: Microsoft Office Excel Record Parsing Integer Overflow (MS10-080)