Changing confd passwords

I understand my mistake… I was using a user without the adequate privilege. Switching to a user with the proper privilege allowed me to change the passwords.

deploy:/home/ubuntu# confd_cli -u security-admin -C
<snip>
deploy(config)#aaa authentication users user 
Possible completions:
  Login name of the user  admin  oper  range  security-admin
deploy(config)#aaa authentication users user oper ?
Possible completions:
  gid          Group Identifier
  homedir      Absolute path to user's home directory
  password     
  ssh_keydir   Absolute path to directory where user's ssh keys may be found
  uid          User Identifier
  <cr>         
deploy(config)#aaa authentication users user oper 
deploy(config-user-oper)#password
(<hash digest string>): ***