Information
The cassandra role has a default password which must be changed.
Rationale:
Failure to change the default password for the cassandra role may pose a risk to the database in the form of unauthorized access.
Solution
Change the password for the cassandra role by issuing the following command:
cqlsh -u cassandra -p cassandra
alter role 'cassandra' with password '<NEWPASSWORD_HERE>';
Where <NEWPASSWORD_HERE> is replaced with the password of your choosing.
Default Value:
cassandra
References:
http://cassandra.apache.org/doc/latest/operating/security.html