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Re: "hacking" a wireless ap firmware
From: Franck Veysset <franck.veysset () rd francetelecom com>
Date: Mon, 10 Jul 2006 09:36:34 +0200

Hello,

In the same idea, we will give a turbo talk at BlackHat USA this
summer, about "WiFi Stealth" where we can "hide" WiFi communications
by modifying both the AP and the Client...

More information at:
http://www.blackhat.com/html/bh-usa-06/bh-usa-06-speakers.html

Slides will be published after the conference.

Regards,
-Franck


Norbert Fran├žois said the following on 07/07/2006 13:18:
Hi everybody...

After a discussion with a friend of mine, I argued that it was
possible to change the behaviour of a firmware, so that an attacker
could put a backdoor inside, for instance :S...

Perhaps I spoke a bit quickly, 'cause now I feel a bit lost in
modifying the firmware :(.

Basically, every access point proposes you to update its firmware...
Most of the fime, these firmware are sold in a *.bin format. After
having tried to search for relevant strings in the bin, disassembling
it and loosing time, I'm still at the same point :(.

Do you have any experience in firmware modification ? Do you know in
which language firwares are written ? Maybe tryin' a decompilation
could help me...

Thanks a lot

Norbert




--
Franck VEYSSET  - & france telecom - R&D Division/MAPS/NSS

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