PnP Networked Devices
It is a common misconception in many companies that any security vulnerabilities
present in their WLANs will not necessarily affect the wired LAN to any great extent and cause damage or corruption of data. The
actual truth is that you must to consider your WLAN as an extension of
your wired LAN. For all intents and purposes, every resource accessible
on your wired network is accessible on your wireless network.
The most overlooked resources available on your LAN are plug and
play (PnP) network devices. The best example of this technology is the
networked printers within your organization. These devices have their
own built-in network servers and their own individual IP addresses.
These devices have no protection whatsoever and anyone (with very little
effort) can find these devices on your network to use or to destroy
their functionality.
Malicious attacks against your network can be as simple as taking
over all the printers on your network; launching this type of an attack
over a wireless LAN is even easier. A hacker who cannot readily log onto
your network to access file shares or other computer resources can very
easily scan your network for network printers. These printers show up
readily on the “Network Neighborhood” of any Windows computer, but
are even easier to find on a Macintosh! 224
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