Check Point Advisories

Double Executable File Extension Arbitrary File Execution

Vulnerability
Protection

Check Point Reference:	CPAI-2013-3506
Date Published:	3 Nov 2013
Severity:	High
Last Updated:	Sunday 19 April, 2015
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Certain malicious executable files can be hidden using double extension filenames. A remote attacker could exploit this vulnerability to entice unsuspecting users to execute arbitrary files.

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 Double Executable File Extension Arbitrary File Execution 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: Double Executable File Extension Arbitrary File Execution