This script is Copyright (C) 2011 Tenable Network Security, Inc.
The FTPS server on the remote host falls back to plaintext
communication if SSL negotiation fails.
The remote FTPS server accepts unencrypted commands on an encrypted
port if SSL negotiation fails. This security bypass could allow an
attacker to perform a man-in-the-middle attack, intercept credentials
and modify files.
See also :
If using Serv-U, upgrade to version 18.104.22.168 or later.
Otherwise, contact the vendor for a patch.
Risk factor :
Medium / CVSS Base Score : 4.0
CVSS Temporal Score : 3.3
Public Exploit Available : true
Nessus Plugin ID: 57272 ()
Bugtraq ID: 50881