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Check: GEN001363

Solaris 10 SPARC STIG: GEN001363 (in versions v2 r4 through v1 r19)

Title

The /etc/resolv.conf file must be group-owned by root, bin, or sys. (Cat II impact)

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.

Check Content

Check the group ownership of the resolv.conf file. Procedure: # ls -lL /etc/resolv.conf If the file is not group owned by root, bin, or sys, this is a finding.

Fix Text

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

Additional Identifiers

Rule ID: SV-226503r603265_rule

Vulnerability ID: V-226503

Group Title: SRG-OS-000480

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000366	The organization implements the security configuration settings.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
CM-6	Configuration Settings