Check Point Advisories

Microsoft Excel Modified Data Structure Stack Overflow (MS12-076; CVE-2012-2543)

Check Point Reference: CPAI-2012-795
Date Published: 13 Nov 2012
Severity: Critical
Last Updated: Tuesday 13 November, 2012
Source:
Industry Reference:CVE-2012-2543
Protection Provided by:

Security Gateway
R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description A remote code execution vulnerability has been reported in Microsoft Excel. The vulnerability is due to a memory corruption condition caused when Excel encounters a modified data structure. A remote attacker can exploit this issue by enticing a target user to open a specially crafted Excel file. Successful exploitation could allow an attacker to take complete control of the target.

Protection Overview

This protection will detect and block the transferring of specially crafted Excel files.

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

  1. In the IPS tab, click Protections and find the Microsoft Excel Modified Data Structure Stack Overflow (MS12-076) 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 Modified data structure stack overflow (MS12-076)

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