Check Point Advisories

Ethereal Netflow Dissector Buffer Overflow (CVE-2004-0176)

Vulnerability
Protection

Check Point Reference:	CPAI-2004-130
Date Published:	22 Oct 2009
Severity:	High
Last Updated:	Thursday 22 October, 2009
Source:
Industry Reference:	CVE-2004-0176
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	There is a buffer overflow in the NetFlow dissector within Ethereal, a program that has the ability to decode packets containing NetFlow packet data as per Cisco's specification. A simple exploit of this vulnerability, where the buffer is overrun with arbitrary data, will result in the termination of Ethereal. It is possible for a remote attacker, using a properly crafted packet, to execute arbitrary code on the target running in the ROOT or LOCAL_SYSTEM. In this case, the behaviour of the target would depend on the nature of the exploit code.

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 Ethereal Netflow Dissector 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: Ethereal Netflow Dissector buffer overflow