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by fc417fc802 363 days ago
> how much harder is container escaping compared to vm escaping?

The answer heavily depends on your configuration. Unprivileged with a spartan syscall filter and a security profile is very different than privileged with the GPU bindmounted in (the latter amounts to a chroot and a separate user account).

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Hence if I ever get money for an infrastructure pentest, I want to include a scenario that scares me a bit: The hijacked application server. The pentesters give me a container with whatever tooling they want and a reverse shell and that gets deployed in the dev-infrastructure, once privileged and once unprivileged, both with a few secrets an application server would have. I'd just reuse a deployment config from some job. And then have at it.

And yes, this will most likely be a mess.