The AIX rexec daemon must not be running.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-91303	AIX7-00-002058	SV-101401r1_rule		High

Description
The exec service is used to execute a command sent from a remote server. The username and passwords are passed over the network in clear text and therefore insecurely. Unless required the rexecd daemon will be disabled. This function, if required, should be facilitated through SSH.

STIG	Date
IBM AIX 7.x Security Technical Implementation Guide	2020-02-24

Details

Check Text ( C-90457r1_chk )
Determine if the "rexec" daemon is running by running the following command: # grep "^exec[[:blank:]]" /etc/inetd.conf If the above grep command returned a line that contains "rexecd", this is a finding.

Fix Text (F-97501r1_fix)
Disable the "rexecd" entry in "/etc/inetd.conf" using command: # chsubserver -r inetd -C /etc/inetd.conf -d -v 'exec' -p 'tcp6' Reload the inetd process: # refresh -s inetd