Check Point Advisories

VSFTPD Invalid User Name Code Execution

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0458
Date Published:	6 Apr 2015
Severity:	Critical
Last Updated:	Tuesday 05 May, 2015
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	VSFTPD v2.3.4
Vulnerability Description	An attacker might use a malicious backdoor that was added to the VSFTPD download archive. A successful exploitation might allow the attacker to run arbitrary code, or use the server as a bot for further attacks.

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 VSFTPD Invalid User Name Code Execution 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: VSFTPD Invalid User Name Code Execution