I recently ran Gossa on my home server using Docker, mounting it to a folder. Since I used rootless Docker, I was curious - if Gossa were to be a
virus, would I have been infected? Have any of you had experience with Gossa?
Docker/Podman and LXC linux containers share the same kernel with the host machine. Root in the container is root period (in the case of rootfull containers). Even without root, much of the data on your machine is readable from any user. With a exploit to escape the container (which are common) the malicious program has root on the machine. This is a known attack vector against linux containers. VMs are much better for isolating untrusted software from the host OS.
They might be talking about posts like this (which I would love to have refuted, as this kind of info has so far kept me from using Docker significantly):
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Can you expand on this wild claim? The whole point of containers is isolation so what you are saying is that containers fail at that all the time?
Docker/Podman and LXC linux containers share the same kernel with the host machine. Root in the container is root period (in the case of rootfull containers). Even without root, much of the data on your machine is readable from any user. With a exploit to escape the container (which are common) the malicious program has root on the machine. This is a known attack vector against linux containers. VMs are much better for isolating untrusted software from the host OS.
They might be talking about posts like this (which I would love to have refuted, as this kind of info has so far kept me from using Docker significantly):
https://security.stackexchange.com/a/169649
There is nothing to refute, 100% correct