Kudu 1.3 (and higher) includes security features that allow Kudu clusters to be hardened against access from unauthorized users. Kudu uses strong authentication with Kerberos, while communication between Kudu clients and servers can now be encrypted with TLS. Kudu also allows you to use HTTPS encryption to connect to the web UI. These features should work seamlessly in Impala as long as Impala’s user is given permission to access Kudu.
For instructions on how to configure a secure Kudu cluster, see Kudu Security Overview.