Wireless Access Points & ARP Poisoning

Submitted by Bob Fleck & Jordan Dimov (www.cigital.com)

Wireless networks, specifically 802.11b, have received a tremendous amount of interest and scrutiny from the security community over the past few months. The security community agrees that wireless networks introduce a new point of entry into previously closed wired networks and must thus be treated as an untrusted source, just like the Internet. Standard technologies enable wireless client machines to connect to a local area network made up of other wireless hosts. For wireless networking to be most useful, the wireless networks must pass data on to standard wired networks connected to the Internet. This paper describes the application of a well understood class of attacks on wired networks to the emerging mix of wired and wireless networking equipment.

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