Metasploit

A collaboration between the open source community and Rapid7, Metasploit software helps security and IT professionals identify security issues, verify vulnerability mitigations, and manage expert-driven security assessments, providing true security risk intelligence.
Capabilities include smart exploitation, password auditing, web application scanning, and social engineering. Teams can collaborate in Metasploit and present their findings in consolidated reports.
Metasploit editions range from a free edition to professional enterprise editions, all based on the Metasploit Framework, an open source software development kit with the world’s largest, public collection of quality-assured exploits.