Mysqlsuite includes three tools which take advantage of the vulnerability in check_scramble() function of mysql described in mysql.4.0.5a.txt. Mysqlhack allows remote command execution with a valid mysql user and pass. Mysqlgetusers allows you do a dictionary login-only attack to find other users. Mysqlexploit spawns a shell on port 10000 on vulnerable linux mysql servers with a valid mysql login and pass and writable database. Fixed in Mysql v3.23.54.
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