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Security and docker (sh.itjust.works)

submitted 4 months ago by diy@sh.itjust.works to c/selfhosted@lemmy.world

32 comments fedilink hide all child comments

How do i you decide whats safe to run

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?

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[–] possiblylinux127@lemmy.zip -4 points 4 months ago (1 children)

Write me an exploit then

If it so insecure prove it

[–] Lemongrab@lemmy.one 3 points 4 months ago* (last edited 4 months ago)

That is not how security works. You must protect against known and unknown attack vectors. I am only pointing out weaknesses of Docker and other linux containers that share the kernel with the host or/and run with Root. I'm not saying anything original or crazy, just read up on the security of these technologies and their limits. I am not a malware designer, I am a security researcher.

Look into gVisor and Kata Containers for info on how to improve the security of containers.

Here are some readings for you:

https://redlib.tux.pizza/r/docker/comments/eakd50/help_can_i_safely_run_malware_inside_a_container/
https://www.csoonline.com/article/1303004/vulnerabilities-in-docker-other-container-engines-enable-host-os-access.html
https://www.panoptica.app/research/7-ways-to-escape-a-container
https://blog.trailofbits.com/2019/07/19/understanding-docker-container-escapes/
https://www.securityweek.com/leaky-vessels-container-escape-vulnerabilities-impact-docker-others/
https://www.cybereason.com/blog/container-escape-all-you-need-is-cap-capabilities