sqlninja is a small tool to exploit SQL injection vulnerabilities on a web application that uses Microsoft SQL Server as its back-end. Its main goal is to provide a remote shell on the vulnerable database server, even in a very hostile environment. It should be used by penetration testers to help and automate the process of taking over a database Server when a SQL injection vulnerability has been discovered. It is written in perl and runs on Unix-like boxes.
You can download it from the following link: https://packetstormsecurity.com/files/download/57260/sqlninja-0.1.2.tgz
Source: https://packetstormsecurity.com/files/57260/sqlninja-0.1.2.tgz.html