BlackMoon FTP Login Error Message User Enumeration

This script is Copyright (C) 2003-2011 Tenable Network Security, Inc.


Synopsis :

The remote FTP server has a user enumeration vulnerability.

Description :

The version of BlackMoon FTP running on the remote host issues a
special error message when a user attempts to log in using a
nonexistent account.

An attacker may use this flaw to make a list of valid accounts,
which can be used to mount further attacks.

See also :

http://marc.info/?l=bugtraq&m=105353283720837&w=2

Solution :

Upgrade to the latest version of BlackMoon FTP.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 5.0
(CVSS2#E:H/RL:U/RC:ND)
Public Exploit Available : true

Family: FTP

Nessus Plugin ID: 11648 (blackmoon_ftp_users_enum.nasl)

Bugtraq ID: 7647

CVE ID: CVE-2003-0343