Secunia Security Advisory – A vulnerability has been reported in various Cisco products, which can be exploited by malicious people to poison the DNS cache.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/67920/sa30979.txt
Source: https://packetstormsecurity.com/files/67920/Secunia-Security-Advisory-30979.html