Check Point Advisories

OpenSSL Handshake Requests ECDH Use-after-free (CVE-2011-3210)

Check Point Reference: CPAI-2012-164
Date Published: 10 May 2012
Severity: High
Last Updated: 10 Aug 2016
Industry Reference:CVE-2011-3210
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable?
Vulnerability Description A use-after-free vulnerability has been reported in OpenSSL. The vulnerability is due to an error in the way the server handles handshake requests arriving in a certain order. A remote attacker could exploit this vulnerability by sending a malicious handshake sequence to a target server. Successful exploitation could result in arbitrary code execution, in the context of the affected application.

Protection Overview

IPS will detect and block malicious handshake requests sent to the TLS/SSL server.

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 / R76 / R75

  1. In the IPS tab, click Protections and find the OpenSSL Handshake Requests ECDH Use-after-free protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  OpenSSL Enforcement Violation.
Attack Information:  OpenSSL handshake requests ECDH use-after-free