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Check Point Advisories

JavaScript Malicious Reverse Obfuscation Technique

Check Point Reference: CPAI-2016-0125
Date Published: 19 Jan 2016
Severity: Critical
Last Updated: 21 May 2019
Source:
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable?
Vulnerability Description Known exploits could potentially bypass security products by using JavaScript obfuscation techniques. Obfuscated exploits might not be detected by IDS and IPS systems, thus allowing attackers to successfully attack the target web client.

Protection Overview

This protection will detect and block obfuscated JavaScript code.

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 JavaScript Malicious Reverse Obfuscation Technique 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:  Web Client Enforcement Violation.
Attack Information:  JavaScript Malicious Reverse Obfuscation Technique

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