Check Point Advisories

Portable Executable Files With Weak Encryption (CVE-2013-3900)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-3632
Date Published:	10 Dec 2013
Severity:	N/A
Last Updated:	Tuesday 10 December, 2013
Source:
Industry Reference:	CVE-2013-3900
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	Portable Executable (PE) files can contain encrypted data. PE files with weak data encryption can be decrypted to manipulate the data. 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 attempts to open a PE file with weak encryption.

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 / R71 / R70

In the IPS tab, click Protections and find the Portable Executable Files With Weak Encryption 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: Portable Executable Files With Weak Encryption