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


Check Point Reference: CPAI-2014-1173
Date Published:
Last Updated:
Source: OpenSSL
Industry Reference(s): 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.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R70 / R71 / R75 and above

How Can I Protect My Network?

  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.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

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