bugtraq - Authentication vulnerability in Belkin wireless devices

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Date: Tue, 15 Nov 2005 21:58:04 +0000
From: Andrei Mikhailovsky <mlists@...ont.com>
To: bugtraq@...urityfocus.com
Subject: Authentication vulnerability in Belkin wireless devices

Arhont Ltd. - Information Security

Arhont Advisory by:             Andrei Mikhailovsky (www.arhont.com)
Advisory:            		Belkin Wireless Router Authentication
Vulnerability 
Router Model Name:              F5D7232-4 and F5D7230-4
Model Specific:                 Other models are likely to be vulnerable
Manufacturer site:              http://www.belkin.com

SUMMARY:
A serious security vulnerability have been found in authentication
system of Belkin Wireless Routers. The vulnerability has been confirmed
in Belkin Wireless Routers models F5D7232-4 and F5D7230-4 with latest
firmware 4.05.03 and with firmware 4.03.03. Previous firmware versions
are also likely to be effected. Other Belkin wireless devices are likely
to be vulnerable.

VULNERABILITY DESCRIPTION:
While a legitimate device administrator is logged into the router's web
management interface, any other user/attacker can access, view and
change router's web configuration without authentication from any
network address. This presents an opportunistic vector of attack on the
device in question.

Risk Factor: High/Medium

WORKAROUNDS:  At the release time of this advisory, Belkin didn't have
an update that solves the issue. It is advised to filter all requests to
web administration interface of the device.

COMMUNICATION HISTORY:
Manufacturer notified on 11th of October 2005

ADDITIONAL INFORMATION:
*According to the Arhont Ltd. policy, all of the found vulnerabilities
and security issues will be reported to the manufacturer at least 7 days
before releasing them to the public domains (such as CERT and BUGTRAQ).
The delay of the public release might be negotiated with the
manufacturer providing reasonable justifications have been given from
the manufacturer side.

If you would like to get more information about this issue, please do
not hesitate to contact Arhont team on info[_-at-_]arhont[_-dot-_]com 

-- 
Andrei Mikhailovsky
Arhont Ltd - Information Security

Web: http://www.arhont.com
     http://www.wi-foo.com
Tel: +44 (0)870 4431337
Fax: +44 (0)117 9690141
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