NGSSoftware Insight Security Research Advisory – By submitting a carefully crafted authentication packet, it is possible for an attacker to bypass password authentication in MySQL 4.1 and 5.0.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/33723/HackingMySQL.txt
Source: https://packetstormsecurity.com/files/33723/HackingMySQL.txt.html