Check Point Advisories

ActiveFax (ActFax) 4.3 Client Importer Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2013-1607
Date Published:	17 Mar 2013
Severity:	High
Last Updated:	Sunday 14 February, 2016
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	The vulnerability is a stack based buffer overflow in the "Import Users from File" function, due to the insecure usage of strcpy while parsing the csv formatted file. The module creates a .exp file that must be imported with ActiveFax server.

Protection Overview

The protection will detect and block attempts to exploit this vulnerability. The protection will limit the amount of data passed to the server to avoid overflow.

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 ActiveFax (ActFax) 4.3 Client Importer Buffer Overflow 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: Application Servers Protection Violation.
Attack Information: ActiveFax (ActFax) 4.3 Client Importer Buffer Overflow