This script is Copyright (C) 2003-2011 Tenable Network Security, Inc.
The remote FTP server has a user enumeration vulnerability.
The version of BlackMoon FTP running on the remote host issues a
special error message when a user attempts to log in using a
An attacker may use this flaw to make a list of valid accounts,
which can be used to mount further attacks.
See also :
Upgrade to the latest version of BlackMoon FTP.
Risk factor :
Medium / CVSS Base Score : 5.0
CVSS Temporal Score : 5.0
Public Exploit Available : true