this post was submitted on 07 Sep 2026
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298
My Homelab Got Hacked - A Postmortem – Phunky Cafe (phunky.cafe)
submitted 3 days ago by michaelharley@infosec.pub to c/selfhosted@lemmy.world
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Welp. My Forgejo instance got popped with an RCE two days ago by CVE-2026-60004. Luckily, I noticed the following morning and had the day free to figure out what happened. Let's dive in!

As a homelab enthusiast, I found this a very interesting post. Here are my take aways from the post that I'm implementing myself:

  • Miner detection. I've updated monitoring rules to now watch the CPU on my hosts. If the same thing happened to me I would not have been alerted at all as I'm doing simple up / down monitoring. Fixed.
  • Access logging. I turned on access logging for my homelab Caddy instances.
  • Log retention. I have increased the amount and retention of my logging. The hope is this will help me reconstruct what happened after a breach.
  • Logs offsite. The VPS access logs now ride along with the normal backup process, which runs hourly. The homelab side still only gets caught by the weekly VM backup, so that's next.
  • Closed an open signup. My webtrees instance (genealogy) had self registration enabled, which is the same door this guy got hit through. Oops. Fixed.
  • Built a tool. log-inventory.sh, so "could I actually reconstruct what happened" is a command I run instead of a thing I assume.
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[–] MonkeMischief@lemmy.today 4 points 2 days ago (1 children)

Yiiiiiikes. This is why I'm gonna be stuck on tailscale or another VPN only access for quite a while. I know it's not perfect, but exposing ports on today's Internet is scary.

I know I don't have the mental overhead to secure literally everything, and have a solid contingency for when some botnet armed with a zero-day inevitably breaks it.

Really glad this person wrote this write up about how that happens and what it looks like though. It's REALLY interesting and I learned a lot!

[–] gramie@lemmy.ca 3 points 1 day ago

Check out CloudFlare tunnels. I created a list of e-mails, and only the people who enter the confirmation code sent to those emails get into my home server.