Check Point Advisories

JavaScript Functions Obfuscation Techniques

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1513
Date Published:	4 May 2014
Severity:	Critical
Last Updated:	Thursday 27 October, 2022
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Web browsers
Vulnerability Description	Known exploits could potentially bypass security products by using JavaScript obfuscation techniques. Since the exploits are obfuscated they may not be detected by IDS and IPS systems, thus allowing attackers to successfully attack target machines.

Protection Overview

This protection will detect and block attempts to bypass IPS using JavaScript obfuscation techniques.

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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the JavaScript Functions Obfuscation Techniques protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Security Products Enforcement Violation.
Attack Information: JavaScript Functions Obfuscation Techniques