Check Point Advisories

Steganography Over JPEG

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0658
Date Published:	4 Jun 2015
Severity:	High
Last Updated:	Thursday 18 June, 2015
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Web Clients
Vulnerability Description	A remote code execution vulnerability has been reported in the way web browsers handle embedded content. To trigger this issue, an attacker may embed a malicious JPEG file in a webpage. Successful exploitation of this vulnerability will allow execution of arbitrary code on the vulnerable system.

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, 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 Steganography Over JPEG 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: Web Client Enforcement Violation.
Attack Information: Steganography Over JPEG