mailing list archives
Re: Bypassing ISA Server 2004 with IPv6
From: Christine Kronberg <seeker () shalla de>
Date: Mon, 10 Apr 2006 21:34:16 +0200 (CEST)
On Mon, 10 Apr 2006, 3APA3A wrote:
--Wednesday, April 5, 2006, 2:12:10 PM, you wrote to bugtraq () securityfocus 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.
Thanks for clearing that. But: If ISA is not able to filter IPv6 so
why can it be bound to an interface anyway? Just to route things
through? Blindly through a firewall?
Another posting talks about limited filtering capabilities. Roman
wrote, icmp went through. So where is the borderline? It still seems
to me that in the moment for what ever reason ipv6 is enabled on ISA
the network it should secure is exposed.
Shalla Secure Services
Re: Bypassing ISA Server 2004 with IPv6 offtopic (Apr 09)