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I used to think FFuf was just another gobuster.
Faster, sure. Cleaner output, maybe.
But still just a directory brute-forcer.
That belief died the day I touched this lab.
What started as a simple practice room on HackingHub.io quietly turned into a lesson on how much attack surface we miss when we limit ffuf to directories.
This is the story of how virtual host fuzzing unfolded, four flags, hidden infrastructure, and a completely different way of thinking about recon.
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The lab was titled "Virtual Host Basics."
Nothing fancy. No scary description. Just four flags waiting somewhere. First, it looks like a normal ffuf tutorial, vhost fuzzing for me, but when I looked at the patterns, I was amazed.
The target was simple enough: https://epsilon.ctfio.com/
I opened it in the browser. A static page stared back at me. Nothing interesting. So I did what most of us do. I opened a terminal.