Check Point Advisories

WinFTP Server NLST Command Denial of Service (CVE-2008-5666)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-2263
Date Published:	1 Dec 2014
Severity:	High
Last Updated:	Monday 08 December, 2014
Source:
Industry Reference:	CVE-2008-5666
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	WinFTP Server version 2.3
Vulnerability Description	A denial of service vulnerability has been reported in WinFTP Server. The vulnerability is due to WinFTP Server failure to handle a NLST command when in PASV mode. A remote attacker can exploit this vulnerability by sending a specially crafted connection request to the vulnerable server.

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 WinFTP Server NLST Command Denial of Service 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: FTP Enforcement Violation.
Attack Information: WinFTP Server NLST Command Denial of Service