Bugtraq mailing list archives

Re: Default configuration in WatchGuard Firewall


From: peak () ARGO TROJA MFF CUNI CZ (Pavel Kankovsky)
Date: Sun, 5 Sep 1999 13:07:58 +0200


On Thu, 2 Sep 1999, Alfonso Lazaro wrote:

      So if our firebox is defending our internal network ( 192.168.x.x ... )
and our WG Firewall is a proxie with an external ip in internet ( 100.100.100.100 hipotetic ip address ) the atacker 
can change his/her routes like so :

      # route add -net 192.168.0.0 netmask 255.255.255.0 gw 100.100.100.100

I am afraid this will work only if either of these conditions is true:
1. the attacker is connected directly to the firebox's external interface
2. the attacker's OS will source route such packets and every intermediate
   router will honor the specified source routing

--Pavel Kankovsky aka Peak  [ Boycott Microsoft--http://www.vcnet.com/bms ]
"Resistance is futile. Open your source code and prepare for assimilation."


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