Description
The Temporal Key Integrity Protocol (TKIP) implementation in unspecified Cisco products and other vendors' products, as used in WPA and WPA2 on Wi-Fi networks, has insufficient countermeasures against certain crafted and replayed packets, which makes it easier for remote attackers to decrypt packets from an access point (AP) to a client and spoof packets from an AP to a client, and conduct ARP poisoning attacks or other attacks, as demonstrated by tkiptun-ng.
References
- [dailydave] 20081107 All Ur WiFi(WPA) R Belong 2 PacSec mailing-list
- http://arstechnica.com/articles/paedia/wpa-cracked.ars
- http://trac.aircrack-ng.org/svn/trunk/src/tkiptun-ng.c
- 20081121 Cisco Response to TKIP Encryption Weakness vendor-advisory
- http://radajo.blogspot.com/2008/11/wpatkip-chopchop-attack.html
- http://dl.aircrack-ng.org/breakingwepandwpa.pdf
- http://www.aircrack-ng.org/doku.php?id=tkiptun-ng
- 32164 vdb-entry