The Lazy Genius

Security News & Brain Dumps from Xavier Ashe, a Bit9 Client Partner

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Hacking Network Printers

Posted by Xavier Ashe on September 13, 2005

Hack a printer you say, what kind of toner have you
been smoking, Irongeek? Well, I’m here to tell you, there’s more that can be done
with a printer to compromise network security than one might realize. In the olden
days a printer may not have been much of a concern other than the threat from
folks dumpster diving for hard copies of the documents that were printed from it, but many modern printers
come network aware with embedded Operating Systems, storage and full IP stacks.
This article will attempt to point out some of the more interesting things that
can be done with a network based printer to make it reveal information about its
users, owners and the network it's part of.

Some of this article may seem a little Black-hat as it concentrates more on the
breaking-in than the keeping-out. However I feel this information will be useful
to system administrators and auditors so that they know what sorts of things to look out
for when it comes to network printers. If you want more advice on how to lock
down your network printer visit your vendors web site. A guide from HP is linked
at the bottom of this article for your convenience. If nothing else, this article
may get you thinking in the right direction.

Get all your printer lovin over at Iron Geek
Really great info here… I never knew how much fun you could have with
JetDirect.  There was this one time I found a Warez server on a
Digital Copier…


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