Check Point Advisories

JavaScript Code Evasion Attempt

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1741
Date Published:	23 Feb 2014
Severity:	High
Last Updated:	Wednesday 23 August, 2017
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Certain evasion tools can use JavaScript code in order to circumvent inspection by security software. An attacker could use such evasion methods in order to execute arbitrary code on the target.

Protection Overview

This protection will detect and block attempts to use such evasion methods.

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

In the IPS tab, click Protections and find the JavaScript Code Evasion Attempt 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: Content Protection Violation.
Attack Information: JavaScript Code Evasion Attempt