Devices all set! after working for a long time .. when you realise your efforts make something out of nothing, its a nice feeling. A set of Netgear adapters, and an Access point gives you the advantage of being free in a limited boundary. Am talkin of the wireless networks. Fire up your windows boxes one with USB wireless adapter and the other with a native PCI one .. pull them on to ad-hoc mode and there you can share data .. chat .. and communicate. An invisible network is built.
As we usually luk at a beautiful blonde and get excited to ask her name or phone number these Machines discover and identify themselves .. not with names or phone numbers but with ESSID's.
Theres this smart device which like a monster takes control of everything .. the Access point .. which often lies out of your reach but visible! accross the enterprise. Once in place the WAP gets everything into infrastructure mode. hmmm ... so what? are we here to learn configuring this wireless network ..
hmmmm not reallie...
With the wireless network in place, something i learn is that every packet goes out on the AIR .. its existing in the air right now .. its passing through my body. Unlike the wired networks .. the packet is naked and is available to all peers! isnt it?
If yes then who stops me from reading what is in the air? Ohh yes the WEP (wireless encryption protocol) stops me ... but this is a RC5 stream cipher if am not wrong!!! and the authentication packets the so called IV's (integrity vectors) do contain the key's ... This means if i capture a million IV's and go the reverse way i will decipher WEP ... crack it!
Well that is the reality. There you fire-up ur favourite Acer travelmate which has the Atheros Chipset and get up the linux running. Capture IV's, apply the reverse algo! and become a part of the network !!! There is no-one who can stop you from this except the mathematical complexity that goes into breaking in ... and of course the huge amount of time required.
Technicalities aside .. if the one reading this article is interested in learning how .. do let me know! The lesson is ... nothing is secure .. its just a matter of time before you realise the FLAW ... as rightly potrayed by k0resh - "r00t is a state of mind".
It isnt fun being naked .. but fun playing with the naked and innocent packets. I hope that wasnt a PORN adventure. hee heee
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