Description
Cisco Unified Wireless IP Phone 7921, when using Protected Extensible Authentication Protocol (PEAP), does not validate server certificates, which allows remote wireless access points to steal hashed passwords and conduct man-in-the-middle (MITM) attacks.
References
- http://blogs.zdnet.com/security/?p=896
- 20080223 Cisco confirms vulnerability in 7921 Wi-Fi IP phone mailing-list
- 1019494 vdb-entry
- 20080221 Cisco and Vocera wireless LAN VoIP devices don't check certificates mailing-list
- 27935 vdb-entry
- http://blogs.zdnet.com/security/?p=901
- 29082 third-party-advisory