Re: Wired captive portal pen-test

[Roman Medina-Heigl Hernandez <roman () rs-labs com>]

Hey palako! :)

JosŽé M. Palazón Romero escribió:
> > I saw ARP requests coming from the router and asking for the MAC of 
> > several other IPs of the same segment where my laptop was connected 
> > (in my case, 192.168.9.x). I didn't catch any ARP responses...
>
> You are not supposed to catch them. ARP requests ("Who is x.x.x.x? Tell 
> yy:yy:yy:yy:yy:yy") are broadcasted, but replys ("x.x.x.x is 
> xx:xx:xx:xx:xx:xx") are not. The host with the IP will answer only to 
> the host that generated the query.

You're right...

> Beside that, I don't think they are filtering on the switches, keep us 
> posted on your research.
>
> About pentesting it, what are you interested in? If you want to escape 
> the captive portal and get Internet for free, you might want to try:
>
> http://thomer.com/icmptx/
>
> or
>
> http://thomer.com/howtos/nstx.html
>
> Or this other amazing thing I discovered some weeks ago:
>
> http://samy.pl/chownat/

I don't have the environment to test now, it's late. But at least other 
hotspot systems solve both (icmp is filtered and DNS traffic is limited by 
length so it's impractical to tunnel through dns). Next time I'll test the 
voip stuff, it seems interesting...

Thanks for the ideas to all.
-r


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