From: Rogan Dawes (discard@dawes.za.net)
Date: Fri Jul 07 2006 - 11:47:51 EDT
Norbert François wrote:
> 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
Do you have a specific Access Point in mind? If not, choose one that
runs Linux, such as a Linksys WRT54G v1-4 or WRT54GL, or any of a whole
range that also run Linux.
See www.openwrt.org for some examples of what is possible.
Rogan
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