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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22444	GEN004930	SV-39905r1_rule	ECLP-1	Medium

Description
If the ftpusers file is not group-owned by root or a system group, an unauthorized user may modify the file to allow unauthorized accounts to use FTP.

STIG	Date
SOLARIS 9 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE	2015-10-01

Details

Check Text ( C-38927r1_chk )
Check the group ownership of the ftpusers file. Procedure: # ls -lL /etc/ftpd/ftpusers /etc/vsftpd.ftpusers /etc/vsftpd/ftpusers If the file is not group-owned by root, bin, or sys, this is a finding.

Fix Text (F-34064r1_fix)
Change the group owner of the ftpusers file. Procedure: # chgrp root /etc/ftpusers