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containers/json

Security Researcher Detected: You might have ended up here because your site vulnerability scanner found something interesting. Hi! I'm a security engineer and I'm having a good time interacting with the people and bots that are interested in information security.

You will hopefully find this site is well-secured and I'm not interested in being hacked. I'm interested in learning about how people try to hack me, though.

What is this endpoint?

containers/json

Docker Engine API endpoint that lists running containers; its presence indicates an exposed Docker daemon over HTTP.

What an attacker could do

An exposed Docker API gives an attacker full control of the host - launching privileged containers, mounting the host filesystem, and escaping to root on the underlying machine.

How to defend it

Never expose the Docker daemon on a TCP port without mTLS; bind it to a local socket, require TLS client certificates, and firewall ports 2375/2376.

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Learn More

Want to dive deeper into this topic? Check out the official documentation.

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