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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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[–] irmadlad@lemmy.world 7 points 2 days ago

About the only recent even I've had was when I was sitting at my desk reading an article. I noticed the mouse slightly move, but I hand no hand on the mouse. I sit there watching it, not manually moving the mouse or typing on the keyboard. It really freaked me out. Turns out, my old desk pad had a slight curl towards the edge the mouse was at, and the curl would make the mouse sense movement ever so slightly. I deployed a new desk pad, and things are back to normal. Whew!