echoCTF.RED
Connect over VPN and compromise purpose-built target systems
echoCTF.RED is an online hacking lab. You connect to its network over OpenVPN and attack targets built to resemble real systems, some based on known CVEs, collecting flags along the way. There are also standalone challenges and writeups to learn from.
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About echoCTF.RED
It trains penetration testing and exploiting known vulnerabilities on live systems. It suits players with some CTF experience who want machine-style targets.
You need an account and an OpenVPN client. Optional subscriptions help pay for hosting; the free scope is not spelled out.
On Breakpoint since 25 Oct 2026.
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