The rstatd daemon must be disabled on AIX.

The rstatd service is used to provide kernel statistics and other monitorable parameters pertinent to the system such as: CPU usage, system uptime, network usage etc. An attacker may use this information in a DoS attack. This service should be disabled.

From the command prompt, execute the following command: # grep "^rstatd[[:blank:]]" /etc/inetd.conf

If there is any output from the command, this is a finding.

In "/etc/inetd.conf", comment out the "rstatd" entry by running command: # chsubserver -r inetd -C /etc/inetd.conf -d -v 'rstatd' -p 'udp'

Restart inetd: # refresh -s inetd