The /etc/resolv.conf file must be group-owned by wheel.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22320	GEN001363 M6	SV-38078r1_rule	ECLP-1	Medium

Description
The resolv.conf (or equivalent) file configures the system's DNS resolver. DNS is used to resolve host names to IP addresses. If DNS configuration is modified maliciously, host name resolution may fail or return incorrect information. DNS may be used by a variety of system security functions, such as time synchronization, centralized authentication, and remote system logging.

STIG	Date
MAC OSX 10.6 Workstation Security Technical Implementation Guide Draft	2013-01-10

Details

Check Text ( C-37617r1_chk )
Open a terminal session and enter the following command to verify the group ownership of the resolv.conf file. ls -lL /etc/resolv.conf If the resolv.conf file is not group owned by wheel, this is a finding.

Fix Text (F-32859r1_fix)
Open a terminal session and enter the following command to set the group ownership of the resolv.conf file. chgrp wheel /etc/resolv.conf