Check Point Advisories

PDF Containing Encrypted Data

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1728
Date Published:	24 Jun 2014
Severity:	N/A
Last Updated:	Monday 21 July, 2014
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	PDF files may include encrypted data. A remote attacker may use such encrypted data inside PDF files to hide attacks against various PDF vulnerabilities, in order to evade IPS inspection. There are cases in which certain traffic, although not intended for malicious use, is very unsafe, since it may transfer shellcode which is undetectable by IPS.

Protection Overview

This protection will detect and block PDF files containing encrypted data.

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 PDF Containing Encrypted Data 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: Adobe Products Violation.
Attack Information: PDF Containing Encrypted Data