BlackMoon FTP Login Error Message User Enumeration

medium Nessus Plugin ID 11648

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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.

Solution

Upgrade to the latest version of BlackMoon FTP.

See Also

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

Plugin Details

Severity: Medium

ID: 11648

File Name: blackmoon_ftp_users_enum.nasl

Version: 1.20

Type: remote

Family: FTP

Published: 5/27/2003

Updated: 11/15/2018

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

Excluded KB Items: global_settings/supplied_logins_only

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 5/20/2003

Reference Information

CVE: CVE-2003-0343

BID: 7647

Secunia: 8840