BNC IRC Server Incorrect Password Authentication Bypass

This script is Copyright (C) 2004-2013 Tenable Network Security, Inc.


Synopsis :

The remote IRC proxy is susceptible to an authentication bypass issue.

Description :

The remote host is running a version of the BNC IRC proxy that
contains a flaw in its authentication process that accepted only
logins with incorrect passwords. An attacker may use this issue to
gain access to the remote IRC proxy server.

See also :

http://www.nessus.org/u?7e9d3c1f

Solution :

Upgrade to BNC version 2.9.1 or later.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.5
(CVSS2#E:H/RL:OF/RC:C)
Public Exploit Available : true

Family: Misc.

Nessus Plugin ID: 15703 (bnc_auth_bypass.nasl)

Bugtraq ID: 11650

CVE ID: CVE-2004-2612