Check Point Advisories

OpenSSL TLS Record Tampering Denial of Service (CVE-2013-4353)

Check Point Reference: CPAI-2014-1173
Date Published: 26 Mar 2014
Severity: High
Last Updated: 26 Mar 2014
Source: CVE-2013-4353
Protection Provided by:

Security Gateway
R75 and above

Who is Vulnerable? OpenSSL Project OpenSSL 1.0.1
OpenSSL Project OpenSSL 1.0.1a
OpenSSL Project OpenSSL 1.0.1b
OpenSSL Project OpenSSL 1.0.1c
OpenSSL Project OpenSSL 1.0.1d
OpenSSL Project OpenSSL 1.0.1e
Vulnerability Description A denial of service vulnerability exists in OpenSSL. The vulnerability is due to an error in handling certain TLS records during the handshake process. A remote unauthenticated attacker could exploit this vulnerability by sending tampered records to a vulnerable SSL client (which could be a server application) during the handshake process.

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, Protection tab and select the version of your choice.

Security Gateway R70 / R71 / R75 and above

  1. In the IPS tab, click Protections and find the OpenSSL TLS Record Tampering Denial of Service protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

SmartView Tracker will log the following entries:

Attack Name:  SSL Enforcement Violation.
Attack Information:  OpenSSL TLS Record Tampering Denial of Service