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Check Point Advisories

Weak SSL 3DES Cipher Suites (CVE-2016-2183)

Check Point Reference: CPAI-2016-0822
Date Published: 25 Sep 2016
Severity: N/A
Last Updated: 3 Dec 2017
Source:
Industry Reference:CVE-2016-2183
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? SSL Clients.
Vulnerability Description 3DES is a widely supported stream cipher often preferred by TLS servers and other servers using encrypted sessions. Recent cryptanalysis results one of which is the SWEET32 exploit biases in the 3DES keystroke to recover repeatedly encrypted plain-texts. As a result 3DES can no longer be seen as providing a sufficient level of security for encrypted sessions.

Protection Overview

This protection detects 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 Weak SSL 3DES Cipher Suites 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:  SSL Enforcement Violation.
Attack Information:  Weak SSL 3DES Cipher Suites

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