Check Point Advisories

Microsoft Excel Rich Text Handling Code Execution (MS08-014; CVE-2008-0116; CVE-2009-0238)

Check Point Reference: CPAI-2008-043
Date Published: 13 Mar 2008
Severity: Critical
Last Updated: Sunday 27 September, 2015
Industry Reference:CVE-2008-0116
Protection Provided by:

Security Gateway
R71, R70

Who is Vulnerable?
Vulnerability Description Microsoft Excel is a popular spreadsheet application. A remote code execution vulnerability has been identified in Microsoft Excel. A remote attacker could exploit this issue via a malformed Excel file. Successful exploitation of this vulnerability may allow execution of arbitrary code on a target system. The vulnerability is due to an error in Microsoft Excel that fails to properly validate rich text values when loading application data into memory. An attacker can exploit this flaw to execute arbitrary code on 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 R70 / R71

  1. In the IPS tab, click Protections and find the Microsoft Excel Rich Text Handling Code Execution (MS08-014) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:.

Attack Name:  Content Protection Violation .
Attack Information:  Microsoft Excel rich text handling code execution (MS08-014).
Attack Information:  Microsoft Excel rich text parsing code execution (MS09-009)

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