THE ULTIMATE PENETRATION TESTING TOOL METASPLOIT
The Metasploit Framework is the open source penetration testing framework with the worlds largest database of public, tested exploits. The Metasploit Project is an open-source computer security project which provides information about security vulnerabilities and aids in penetration testing.
Download here (Windows Users):
http://www.metasploit.com/releases/framework-3.2.exe
Download here (Linux Users):
http://www.metasploit.com/releases/framework-3.2.tar.gz