Re: [Fwd: Re: Properly Arp Cache Poisoning]

[Arjun Sambamoorthy <arjunsam () gmail com>]

Windows OS can be configured in the Registry settings not to accept
unsolicited(gratuitous) ARP reply packets. May be that's why your
laptop is not getting poisoned. There are ways to defeat this.

1) Using ICMP and ARP. Check last paragraph of the below link on how
to defeat it, http://ettercap.sourceforge.net/forum/viewtopic.php?t=2392.
This method worked for me.
2) ARP Request poisoning. [I think it doesn't work on Windows].

Hope this helps.

Arjun

On Mon, Jan 4, 2010 at 10:01 AM, Leandro Quibem Magnabosco
<leandro.magnabosco () fcdl-sc org br> wrote:
> Hi Chris Brenton,
>
> Chris Brenton escreveu:
> > What do you mean by "DoS'ed"? Does the OS become unresponsive? Does the
> > OS report an IP conflict? If you check the interface, is it still using
> > the correct IP address? What OS/version is on each system?
>
> I think you have nailed the question here.
> I have not realized before that the interface was actually shutting down.
> The OS used on both, the Laptop and Desktop, is Windows Vista 64.
> I was using Backtrack on another laptop that I used to make t he attack.
> > I've noticed Vista and later will sometimes shutdown if it detects
> > another system advertising the IP address it is using (like during an
> > ARP cache poisoning attack). This is your most likely root cause, but
> > additional clarification as to what happens to the laptop would be
> > helpful.
>
> I think that the Desktop OS is not updated since I use Windows only to play
> games.
> On the other hand, the laptop OS is updated, which could be the reason why
> it reacted differently.
>
>
> So I guess I learned something really valuable here with your observation.
> Windows Vista sometimes shuts down it's interface to avoid ARP cache
> poisoning attack.
>
> Very nice.
>
> Thank you all for replies I've received.
> --
> Leandro Quibem Magnabosco.
>
>
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Prove to peers and potential employers without a doubt that you can actually do a proper penetration test. IACRB CPT 
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