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elastic/api/_cluster/health

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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?

elastic/api/_cluster/health

Elasticsearch Cluster Health API

What an attacker could do

An open Elasticsearch cluster API discloses node and shard topology and signals an unauthenticated cluster, allowing an attacker to read, modify, or delete indexed data and trigger ransom wipes.

How to defend it

Enable the security features (authentication and TLS), bind to private interfaces, and place the cluster behind a network policy or authenticated gateway.

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Learn More

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

Read Official Documentation