[1239] in bugtraq

home help back first fref pref prev next nref lref last post

Re: Intelligent modems :-(

daemon@ATHENA.MIT.EDU (Christian Wettergren)
Mon Mar 13 05:50:27 1995

To: Phil Male <phil@compnews.co.uk>
Cc: bugtraq@fc.net
In-Reply-To: Your message of Sun, 12 Mar 95 13:07:34 GMT.
             <Pine.SUN.3.91.950312130506.23334y-100000@sage.compnews.co.uk> 
Date: Mon, 13 Mar 95 09:44:13 +0100
From: Christian Wettergren <cwe@it.kth.se>


| > > If it is in LAP-M mode, just send of AT*R to them (protected
| > > with a preset password of QWERTY). You may also use the command
| > > <1s>****<1s> analog to the +++ sequence. You may even load 
| > 
| > I'm sure there must be a way to disable it or change the password?
| 
| There is - I had this conversation over a year ago here and if I had the 
| manuals to hand I'd tell you want it is (well on the modems we use 
| anyway) - but it is documentated in the manuals.

There is, I believe it was AT*C or something. What concerns me is that
this is totally undocumented in the papers from Intel.

I also feel uneasy with the possibility of reprogramming the Flash-PROMs.
Many of the modems do have quite a lot of RAM inside, one model I saw
said it had 32kRAM inside (not a Rockwell chip though). It might be 
farfetched, but I would definitely not want someone to upload a "password
sniffer" into my modem.

/Christian Wettergren, cwe@it.kth.se
                       KTH/Teleinformatics


home help back first fref pref prev next nref lref last post