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Remove setuid,setgid bits on all files in Docker image #51851

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Merged
merged 3 commits into from
Feb 13, 2020
Merged

Remove setuid,setgid bits on all files in Docker image #51851

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29e6dfe
Remove setuid,setgid bits on all files in Docker image
pugnascotia Feb 4, 2020
af92a6a
Merge branch '7.x' into remove-setxid-via-dockerfile
elasticmachine Feb 5, 2020
5e981aa
Merge branch '7.x' into remove-setxid-via-dockerfile
elasticmachine Feb 13, 2020
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3 changes: 3 additions & 0 deletions distribution/docker/src/docker/Dockerfile
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Expand Up @@ -67,6 +67,9 @@ ENV PATH /usr/share/elasticsearch/bin:\$PATH

COPY --chown=1000:0 bin/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh

# Ensure that there are no files with setuid or setgid, in order to mitigate "stackclash" attacks.
RUN find / -xdev -perm -4000 -exec chmod ug-s {} +

# Openshift overrides USER and uses ones with randomly uid>1024 and gid=0
# Allow ENTRYPOINT (and ES) to run even with a different user
RUN chgrp 0 /usr/local/bin/docker-entrypoint.sh && \
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