Exploiting simple network services in CTF’s
https://github.com/CiscoCXSecurity/enum4linux https://www.nextgov.com/cybersecurity/2019/10/nsa-warns-vulnerabilities-multiple-vpn-services/160456/ https://attack.mitre.org/techniques/T1210/ https://gregit.medium.com/exploiting-simple-network-services-in-ctfs-ec8735be5eef