Oracle Default Password Tester is a penetration testing utility. Oracle has hundred of Default password out in the market after installation mostly database administrators overlook these default passwords. Hacker's first choice is to find a default password on the database server and try to connect with the database. By running exploit hacker can become owner of the database. This utility checks if there is any default account exist with default password in the database by trying different usernames and passwords. Default password tester will display all the user names and passwords with which it was able to connect to the database. This is a proof of concept that default password exists and can be used to gain access on the database server.