Network misconfigurations

Azure virtual machine allows direct access to Apache Cassandra service (internode communication) from the Internet


By default, Cassandra uses 7000 for cluster communication (7001 if SSL is enabled), and 7199 for JMX. Those ports, using for internode communication, open on your virtual machine and allows all incoming traffic from the Internet. In order to keep security best practices, you should restrict access to be only from allowed IP addresses.
  • Recommended Mitigation

    Configure networking rule to allow incoming Apache Cassandra traffic from allowed IP addresses only.