If DHCP server is not required on AIX, the DHCP server must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-91339	AIX7-00-003104	SV-101437r1_rule		Medium

Description
The dhcpsd daemon is the DHCP server that serves addresses and configuration information to DHCP clients in the network. To prevent remote attacks this daemon should not be enabled unless there is no alternative.

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

Details

Check Text ( C-90493r1_chk )
From the command prompt, execute the following command: # grep "^start[[:blank:]]/usr/sbin/dhcpsd" /etc/rc.tcpip If there is any output from the command, this is a finding.

Fix Text (F-97537r1_fix)
In "/etc/rc.tcpip", comment out the "dhcpsd" entry by running command: # chrctcp -d dhcpsd