This script is Copyright (C) 2000-2011 Tenable Network Security, Inc.
Arbitrary code may be run on the remote server.
The remote ProFTPd server is running a 1.2.0preN version.
All the 1.2.0preN versions contain several security flaws that allow an
attacker to execute arbitrary code on this host.
Upgrade to a fixed FTP server - http://www.proftpd.net
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 9.5