Check Point Advisories

Microsoft Excel SLK File Parsing Code Execution (MS11-045; CVE-2011-1276)

Check Point Reference: CPAI-2011-289
Date Published: 9 Jun 2011
Severity: Critical
Last Updated: Sunday 14 February, 2016
Source:
Industry Reference:CVE-2011-1276
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70, R65
Who is Vulnerable?
Vulnerability Description Microsoft Excel is a popular spreadsheet application. A remote code execution vulnerability has been identified in Microsoft Excel. The vulnerability is due to an error in Microsoft Office Excel that fails to properly parse the SLK file format. A remote attacker could trigger this flaw by convincing a victim to open a specially crafted SLK file. 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 / R71 / R70 / R65

  1. In the IPS tab, click Protections and find the Microsoft Excel SLK File Parsing Code Execution (MS11-045) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Content Protection Violation.
Attack Information:  Microsoft Excel SLK File Parsing code execution (MS11-045)

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