The /etc/resolv.conf file must be group-owned by root, bin, or sys.

From Solaris 10 SPARC Security Technical Implementation Guide

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-39894r1_rule The /etc/resolv.conf file must be group-owned by root, bin, or sys.

Vulnerability discussion

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.

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Fix text

Change the group owner of the /etc/resolv.conf file to root, bin, or sys. Procedure: # chgrp root /etc/resolv.conf

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