etcd, when installed on Red Hat Enterprise Linux Atomic Host on non-cloud
environments, is exposed to the world and it does not enable authentication by
default. A remote attacker could exploit this to access passwords, secret keys
and other data.
Configure a firewall to prevent etcd from being exposed to the world and enable TLS authentication for both clients and servers.
When Red Hat Enterprise Linux Atomic Host is installed in a cloud environment an external firewall is usually applied.
Closing as NOTABUG since no sensitive information is stored by default in etcd when used in this configuration.