The aliases file must be group-owned by root, sys, bin, or other.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22438	GEN004370	SV-35163r1_rule	ECLP-1	Medium

Description
If the alias file is not group-owned by root, bin, sys or other, an unauthorized user may modify the file to add aliases to run malicious code or redirect e-mail.

STIG	Date
HP-UX 11.23 Security Technical Implementation Guide	2015-12-02

Details

Check Text ( C-36557r1_chk )
Check the group ownership of the /etc/mail/aliases file. # ls -lL /etc/mail/aliases If the file is not group-owned by root, bin, sys or other, this is a finding.

Fix Text (F-31924r1_fix)
Change the group-owner of the /etc/mail/aliases file. # chgrp root /etc/mail/aliases