To create your own vulnerable Capture The Flag (CTF) machines, you can follow these steps:
1. Set up VirtualBox and Vagrant by downloading the necessary files and configuring the Vagrantfile.
2. Boot up the virtual machine.
3. Connect to the virtual machine and start configuring it manually or write an automated script.
4. Induce misconfigurations, gain initial access, escalate privileges, and perform cleanup and finalization.
5. Export the machine for others to use.
To add specific Common Vulnerabilities and Exposures (CVEs) with publicly available exploits, you can download and install applications from exploit.db.