Penetration Testing mailing list archives

Re: WiFi sniffing need to be connected?


From: Nikhil Wagholikar <visitnikhil () gmail com>
Date: Tue, 6 Jul 2010 20:13:38 +0530

Hi List,

Yes, I agree with Shenk. There is indeed a concept of RFMON. You can
surely sniff data and management packets of a wireless network without
even associating with the target wireless network with this RFMON mode
of wireless card. However, this is not possible with Promisious mode.

The RFMON mode turns the card into a completely passive listener, like
a radio. Everything on the current (and adjacent) channels is reported
to the host, including data and control frames.

Thumbs up to Shenk!

---
Nikhil Wagholikar

On 6 July 2010 18:15, Shenk, Jerry <Jerry.Shenk () windstream com> wrote:
That's not quite accurate, Nikhil.  The wifi traffic is a radio broadcast so any device that receives that 
transmition can  read that traffic.  In "wifi terminology", rfmon mode is what you're looking for.  There are a 
number of cards that can be put into rfmon mode and collect the traffic.  My favorite tool for doing this is kismet 
but that certainly isn't the only option..  You might want to research kismet and see if that gives you what you need.

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of Nikhil Wagholikar
Sent: Sunday, July 04, 2010 10:24 AM
To: pen-test () securityfocus com
Subject: Re: WiFi sniffing need to be connected?

Hi Vinicius,

In-order to sniff on a network, you obviously need to be connected to
that network. Promisious mode concept comes after you are connected to
the network. Also, you need to keep in mind, that sniffing on a
switched network is not as straight forward as on Hub network. You
need to do something extra like ARP cache poisioning in-order to sniff
on switched network, else you'll land up sniffing your own data on
given network.

All the best!

---
Nikhil Wagholikar

On 2 July 2010 08:14, Vinicius Menezes <cotomax () yahoo com> wrote:

Hello guys,

I´m trying to snif msn/mail messages throw wifi.

It´s necessary be connected to one specific station or just set promiscus mode to get all traffic?

Thanks





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