Check Point Advisories

Microsoft Internet Explorer Memory Corruption (MS15-124: CVE-2015-6143)

Check Point Reference: CPAI-2015-1349
Date Published: 8 Dec 2015
Severity: Critical
Last Updated: Tuesday 08 December, 2015
Source: Microsoft MS15-124
Industry Reference:CVE-2015-6143
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Internet Explorer 11
Vulnerability Description A use after free vulnerability exists in Microsoft Internet Explorer. The vulnerability is due to an error in manipulating CAttrArray objects. Successful exploitation could cause memory corruption in a way that would allow attackers to execute code on the target.
Update/Patch AvaliableApply patches from: MS15-124

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

  1. In the IPS tab, click Protections and find the Microsoft Internet Explorer Memory Corruption (MS15-124: CVE-2015-6143) 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:  Web Client Enforcement Violation.
Attack Information:  Microsoft Internet Explorer Memory Corruption (MS15-124: CVE-2015-6143)

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