Check Point Advisories

Microsoft Excel Malformed File Memory Corruption (MS12-076; CVE-2012-1886)

Check Point Reference: CPAI-2012-790
Date Published: 13 Nov 2012
Severity: High
Last Updated: 15 May 2018
Source:
Industry Reference:CVE-2012-1886
Protection Provided by:

Security Gateway
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 an error in Microsoft Excel while handling specially crafted Excel files. A remote attacker could trigger this flaw by convincing a victim to open a specially crafted Excel file. Successful exploitation would allow an attacker to execute arbitrary code on the target.

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 / R71 / R70

  1. In the IPS tab, click Protections and find the Microsoft Excel Malformed File Memory Corruption (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 malformed file memory corruption (MS12-076)

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