bugtraq - Re[2]: Bypassing ISA Server 2004 with IPv6

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Message-ID: <1083495427.20060410162247@SECURITY.NNOV.RU>
Date: Mon, 10 Apr 2006 16:22:47 +0400
From: 3APA3A <3APA3A@...URITY.NNOV.RU>
To: Christine Kronberg <seeker@...lla.de>
Cc: bugtraq@...urityfocus.com
Subject: Re[2]: Bypassing ISA Server 2004 with IPv6

Dear Christine Kronberg,

--Wednesday, April 5, 2006, 2:12:10 PM, you wrote to bugtraq@...urityfocus.com:

CK>    is  open  for any attacks as long as they are IPv6 based. If that
CK>    is  right,  this is an extremly nasty bug. If ISA Server 2004 and
CK>    Windows  2003  Basic  Firewall cannot filter that stuff it should
CK>    simply drop it.

You are not right.

1. IPv6 is not installed by default.
2. If IPv6 is installed, routing is not enabled by default.
3. If  you  install  IPv6,  you  can be bind it to only interfaces it's
required. To prevent IPv6 (or another routable protocol, such as IPX) on
external  interface  you  can (and you should) unbind this protocol from
interface in network connection properties. ISA is not required for this
task and is not supposed for this task.

Again:  IPv4  and  IPv6  are  completely  different network protocol and
usually require different administration tools.

P.S.  offtopic is right, since Windows XP SP2 and Windows 2003 SP1 there
is a limited (in very few features) IPv6 support  for Windows Firewall.

-- 
~/ZARAZA
http://www.security.nnov.ru/