Secunia Security Advisory – A security issue has been reported in Cisco products, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/53759/sa23836.txt
Source: https://packetstormsecurity.com/files/53759/Secunia-Security-Advisory-23836.html