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Message-ID: <200309261154.57044.lucio@pixel.it>
Date: Fri, 26 Sep 2003 11:54:57 +0000
From: H D Moore <hdm@...italoffense.net>,
	(by way of Lucio <lucio@...el.it>)
To: bugtraq@...urityfocus.com
Subject: Re: ICMP pokes holes in firewalls...


Only if these systems are running kernel version 2.2, the 2.4 NAT system
has been rewritten and is not vulnerable.

On Friday 26 September 2003 04:55 am, Lucio wrote:
> > This also applies to Linux NAT gateways.
>
> I'm rellay not an expert in building a firewall with a Linux box, but
> I've tried twice and now I have two customers happy of their
> unexpensive Linux based firewall. These firewalls offer also NAT
> functionality to the respective LANs they protect and use iptables
> rules with stateful inspection to filter the packets. Both customers
> have a DNS in between the linux firewall and the ISP's router. Are they
> vulnerable to any of those attacks?



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