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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[–] IanTwenty@piefed.social 12 points 3 days ago (1 children)

Firewalling containers' outbound access seems to be rare but another powerful layer of protection

[–] chaospatterns@lemmy.world 4 points 3 days ago (1 children)

Yeah it's useful and I've been using it for my home lab, but too many of my containers want outbound connections to the Internet. Like Forgejo needs :443 to be able to mirror or remote push repositories, so either I have to identify and allow list github.com, gitlab.com, etc. or end up allowing 0.0.0.0/0:443 which is not very strong protection.

I'd love for some kind of CNI or network plugin that filtered based on domain name.

[–] moonshine69@lemmy.nz 2 points 3 days ago

Envoy is what i use, or squid is an option