If AIX SSH daemon is required, the SSH daemon must only listen on the approved listening IP addresses.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-215306	AIX7-00-002124	SV-215306r508663_rule		Medium

Description
The SSH daemon should only listen on the approved listening IP addresses. Otherwise the SSH service could be subject to unauthorized access.

STIG	Date
IBM AIX 7.x Security Technical Implementation Guide	2022-06-06

Details

Check Text ( C-16504r294369_chk )
From the command prompt, run the following command to check if "ListenAddress" is defined in SSH config file: # grep -i ListenAddress /etc/ssh/sshd_config | grep -v '^#' ListenAddress 10.17.76.74 If no configuration is returned, or if a returned listen configuration contains addresses not permitted, this is a finding.

Fix Text (F-16502r294370_fix)
Edit the SSH daemon config file and add/modify the "ListenAddress" network addresses: # vi /etc/ssh/sshd_config Restart SSH daemon: # stopsrc -s sshd # startsrc -s sshd