I wasn't there, but I know the Deauth Flood attack [1] is a very effective attack that most 802.11b networks are vulnerable to. In security testing, it is trivial to use a Prism2 based card with the HostAP drivers and flip your wireless NIC into an AP, spoof the BSSID of the AP station, and flood the wireless clients with deauth frames - legitimate traffic never passes as a result. Reyk Floeter's Void11 Penetration testing tools implement this attack [2]. I saw this attack mentioned in at least one book, but I don't know why it wasn't released as a vulnerability. It is similar to the released vulnerability, but involves spoofed frames instead of the physical layer. [1] Aruba Networks "Thwarting DoS Attacks" http://www.arubanetworks.com/products/whitepapers/secure-wireless/index.php?pg=3 ` [2] WLSec Projects http://www.wlsec.net/projects/ Casper Dik> In last year's Usenix security symposium an attack which Casper Dik> looked very much like one in the first Casper Dik> paragraph was performed Casper Dik> agains tthe audience (immediate linkloss was the result of the Casper Dik> presenter pressing a button on his laptop). Casper Dik> This was with with plain COTS components, so what is different Casper Dik> with this attack or is it the same attack rediscovered? Casper Dik> I don't remember it getting any press. Casper Dik> Casper
