Introduce a dedicated unconfined AA policy#14855
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By using the 'unconfined' policy for privileged containers, we have inherited the host's apparmor policies, which really make no sense in the context of the container's filesystem. For instance, policies written against the paths of binaries such as '/usr/sbin/tcpdump' can be easily circumvented by moving the binary within the container filesystem. Fixes GH#5490 Signed-off-by: Eric Windisch <[email protected]>
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I've done testing to make sure this doesn't break docker-in-docker, but some more thorough testing by users would be great. Users may invoke the old behavior using '--privileged --security-opt apparmor:unconfined' |
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@tianon This PR will "stop profiles like mysqld from bleeding into containers and applying to processes that they shouldn't". See #14864 for a policy for the docker binary, hardening against attacks against the engine itself (whether via vulnerabilities in image pulls / extraction, or some other vectors) |
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🤘 ❤️ LGTM |
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LGTM |
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Introduce a dedicated unconfined AA policy
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- This fixes the following error that running `tcpdump` in a privileged container generates: `tcpdump: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: Permission denied` - Problem: moby/moby#5490 - Fix: moby/moby#14855 [#126394949] Signed-off-by: Gabriel Ramirez <[email protected]>
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By using the 'unconfined' policy for privileged
containers, we have inherited the host's apparmor
policies, which really make no sense in the
context of the container's filesystem.
For instance, policies written against
the paths of binaries such as '/usr/sbin/tcpdump'
can be easily circumvented by moving the binary
within the container filesystem.
Fixes #5490 #14550
Signed-off-by: Eric Windisch [email protected]