bugtraq - Re[2]: Denial of Service Vulnerability in IEEE 802.11 Wireless Devices

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <231404079.20040515202714@pobox.com>
Date: Sat, 15 May 2004 20:27:14 -0500
From: Jason Ostrom <jpo@...ox.com>
To: Casper Dik <casper@...land.sun.com>
Cc: albatross@....it, bugtraq@...urityfocus.com
Subject: Re[2]: Denial of Service Vulnerability in IEEE 802.11 Wireless Devices

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