Re: Stopping Arp poison attacks

[Emilio Valente <evalente () sdsc edu>]

Try enabling DAI (Dynamic Arp Inspection) from a 
Cisco device. It is turned OFF by default.

At 6:00 PM +0200 6/3/06, Cedric Blancher wrote:
> Le jeudi 01 juin 2006 à 08:14 +0000, P. Entester a écrit :
> >  If i recommend our customers to bind the MAC addresses of mission critical
> >  servers' network interfaces to their respective ports on the routers and
> >  switches, does that migitate most of the threat or am i missing something
> >  important?
>
> No, that does not mitigate the issue. What you're missing is that ARP
> cache poisoning does not change host MAC address, but the association
> between a MAC address and an IP address in ARP cache.
>
> In addition to pointers that were already given, you can try this one
> for ARP cache poisoning understanding:
>
>         http://sid.rstack.org/arp-sk/
>
> One other mitigation technic is static ARP cache entries, but it can
> become painful to maintain quite fast as network grows.
>
>
> --
> http://sid.rstack.org/
> PGP KeyID: 157E98EE FingerPrint: FA62226DA9E72FA8AECAA240008B480E157E98EE
> > >  Hi! I'm your friendly neighbourhood signature virus.
> > >  Copy me to your signature file and help me spread!
>
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This List Sponsored by: Cenzic

Concerned about Web Application Security?
Why not go with the #1 solution - Cenzic, the only one to win the Analyst's
Choice Award from eWeek. As attacks through web applications continue to rise,
you need to proactively protect your applications from hackers. Cenzic has the
most comprehensive solutions to meet your application security penetration
testing and vulnerability management needs. You have an option to go with a
managed service (Cenzic ClickToSecure) or an enterprise software
(Cenzic Hailstorm). Download FREE whitepaper on how a managed service can
help you: http://www.cenzic.com/news_events/wpappsec.php
And, now for a limited time we can do a FREE audit for you to confirm your
results from other product. Contact us at request () cenzic com for details.
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