RE: Vulnerability testing in analog modem

["Craig Wright" <Craig.Wright () bdo com au>]

As for point 1 - what is there to try. A fax is not a modem. There is no
known (even in theory) attack against a fax to gain access.

Regards,
Craig Wright (GSE-Compliance)



Craig Wright
Manager of Information Systems

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-----Original Message-----

From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of jfvanmeter () comcast net
Sent: Tuesday, 30 October 2007 3:21 AM
To: rohnskii () gmail com; security-basics () securityfocus com
Subject: Re: Vulnerability testing in analog modem

I had a similar pen test, it was on a xerox docucentra, I had several
concerns with the multifunction printer

1. there was/is no auditing of the fax connection, so I could try and
try and no one would never know about the attack.
2. the printer also had a web server, so I copied some test file to the
hd and set up my very own web site.

i believe it is possible to break out of the modem connection, via some
type of diagnotic route and get access to the network.

I recommend that to my client that they configure the phone jack for
outgoing calls only., turn off the web server, set passwords, etc. 

I would be interested in hearing anyones thoughts about this. I have a
test coming up for a client on a multi function printer

Take Care and Have Fun --John

 -------------- Original message ----------------------
From: rohnskii () gmail com
> I don't know about connecting through the fax to the network but there
is 
> another security concern to think about.
>
>
> Fax machines, and printers, that have an internal HD for document
storage can be 
> a security concern.  When the machine is sent out for servicing or
retired there 
> may be retrievable document images with confidential information on
them.