w3af - w3af is a Web Application Attack and Audit Framework
Exploit Pack - Exploit Pack is an open source project security that will help you adapt exploit codes on-the-fly.
Nikto - Nikto is an Open Source (GPL) web server scanner which performs comprehensive tests against web...
ZoomEye - Network mapping service
Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.
Armitage - Armitage makes penetration testing easy by adding a GUI to the Metasploit framework