OSEC

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RE: Authentication Vulnerability in NetScreen ScreenOS

From: Brian Soby (tmpbox5hotmail.com)
Date: Thu Jun 26 2003 - 12:37:53 CDT


>However, after a user is authenticated, anyone else may also access the
>protected services if they orginate from the same source IP address (NAT'd
>network). The authentication mechanism is designed to authenticate based on
>source-ip address only.

Most firewalls track authenticated users based on the client's source IP
address. If you need a stronger method, you could always use the Netscreen
Remote client software and require a secure tunnel from the clients to get
to your protected resources.

-Brian Soby

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