Missing Authentication for Critical Function

Summary

Apollo is a configuration management system. In versions prior to 2.1.0, there are potential security issues if users expose apollo-config service to the internet, which is not recommended. This is because there is no authentication feature enabled for the built-in eureka service. Malicious hackers may access eureka directly to mock apollo-config service and apollo-admin service. Login authentication for eureka was added in version 2.1.0. As a workaround, avoid exposing apollo-config service to the internet.