[NEWS] Belkin Wireless Devices Authentication Bypass Vulnerability

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To: list@securiteam.com
Date: 21 Nov 2005 17:11:24 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  Belkin Wireless Devices Authentication Bypass Vulnerability
------------------------------------------------------------------------

SUMMARY

A security vulnerability have been found in authentication system of
Belkin Wireless Routers, while administrator is authenticated, any user
can view and change router's configuration.

DETAILS

Vulnerable Systems:
 * Belkin Wireless Router model F5D7232-4
 * Belkin Wireless Router model F5D7230-4
 * Firmware version 4.05.03
 * Firmware version 4.03.03
(Previous firmware versions are also likely to be effected. Other Belkin
wireless devices are likely to be vulnerable.)

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.

Workaround:
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.

ADDITIONAL INFORMATION

The information has been provided by <mailto:mlists@arhont.com> Andrei
Mikhailovsky.

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