Check Point Advisories

Microsoft Office Excel CatSerRange Record Remote Code Execution (MS11-021) - Ver2 (CVE-2011-0978)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0748
Date Published:	18 May 2015
Severity:	High
Last Updated:	Monday 18 May, 2015
Source:
Industry Reference:	CVE-2011-0978
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Microsoft Excel is a popular spreadsheet application. 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. A memory corruption vulnerability has been identified in Microsoft Excel. The vulnerability is due to an error in Microsoft Office Excel that fails to properly parse the Excel spreadsheet file format. A remote attacker could trigger this flaw by convincing a victim to open a specially crafted Excel spreadsheet file that includes a malformed SxView record. Successful exploitation of this issue may allow execution of arbitrary code on a vulnerable system.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

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 CatSerRange Record Remote Code Execution (MS11-021) - Ver2 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 CatSerRange Record Remote Code Execution (MS11-021) - Ver2