Did you know that by default, Spring Boot allows you to inspect an application’s configuration, via an unsecured web service?
When running a Spring Boot application, it exposes a number of Endpoints. One of them is the env endpoint, which, according to the docs:
Exposes properties from Spring’s ConfigurableEnvironment.
So if you run a Spring Boot app and go to
http://localhost:8080/env, you’ll see this:
You probably don’t want this enabled in production. It exposes
- environment variables
- Spring config properties (some passwords are masked but not all of them)
- JVM properties
All of this information exposed poses a significant security risk for your apps.
To disable this endpoint, add this property to your
endpoints.env.enabled = false
You might want to disable other endpoints too. To read more about them, check the Spring Boot documentation.
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