How do I protect Docker containers from privilege escalation attacks?
Asked on Sep 17, 2025
Answer
To protect Docker containers from privilege escalation attacks, you should implement strict security configurations and follow best practices to minimize risks.
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docker run --security-opt no-new-privileges --cap-drop=ALL --cap-add=NET_BIND_SERVICE --user nobody:nogroup ...
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- Use the
--security-opt no-new-privilegesoption to prevent processes from gaining additional privileges. - Drop all unnecessary capabilities with
--cap-drop=ALLand add only the specific ones needed using--cap-add. - Run containers as a non-root user by specifying
--userto limit the impact of a potential breach. - Regularly update Docker and its components to patch known vulnerabilities.
✅ Answered with Security best practices.
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