Nikto is a powerful open-source web vulnerability scanner that identifies various security issues in web servers and applications. It categorizes vulnerabilities into several key areas.

Features of Nikto:

• Outdated Software: Detects outdated versions of software components on the server.
• Default Files and Directories: Checks for files like `php` or `admin` directories left from development.
• Configuration Issues: Detects common misconfigurations, such as HTTP methods (OPTIONS, TRACE), that may increase attack surfaces.
• Security Headers: Checks for missing or misconfigured security headers that could expose vulnerabilities.
• CGI Directories: Scans for the presence of CGI directories on the target web server.
• Installed Software: Identifies the software installed on the target web server.

To check Nikto version:

$ nikto -Version
  

Disclaimer: Nikto is an open-source project maintained by the community and distributed under the GNU General Public License (GPL). It is not affiliated with or endorsed by any other entity. Nikto is provided "as is," without any warranty, express or implied. Users are responsible for understanding and complying with licensing terms and regulations while using Nikto.