The AIX /etc/passwd, /etc/security/passwd, and/or /etc/group files must not contain a plus (+) without defining entries for NIS+ netgroups or LDAP netgroups.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-215206	SRG-OS-000480-GPOS-00227	AIX7-00-001047	SV-215206r991589_rule	2024-08-16	3

Description
A plus (+) in system accounts files causes the system to lookup the specified entry using NIS. If the system is not using NIS, no such entries should exist.

ℹ️ Check
Check system configuration files for plus (+) entries using the following commands: # cat /etc/passwd \| grep -v "^#" \| grep "\+" # cat /etc/security/passwd \| grep -v "^#" \| grep "\+" # cat /etc/group \| grep -v "^#" \| grep "\+" If the "/etc/passwd", "/etc/security/passwd", and/or "/etc/group" files contain a plus (+) and do not define entries for NIS+ netgroups or LDAP netgroups, this is a finding.

ℹ️ Check

Check system configuration files for plus (+) entries using the following commands: # cat /etc/passwd | grep -v "^#" | grep "\+" # cat /etc/security/passwd | grep -v "^#" | grep "\+" # cat /etc/group | grep -v "^#" | grep "\+" If the "/etc/passwd", "/etc/security/passwd", and/or "/etc/group" files contain a plus (+) and do not define entries for NIS+ netgroups or LDAP netgroups, this is a finding.

✔️ Fix
Edit "/etc/passwd", "/etc/security/passwd", and/or "/etc/group" files and remove entries containing a plus (+).