The /etc/resolv.conf file must have mode 0644 or less permissive.

From SOLARIS 10 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-26397r1_rule The /etc/resolv.conf file must have mode 0644 or less permissive.

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.

Check content

Check the mode of the /etc/resolv.conf file. Procedure: # ls -l /etc/resolv.conf If the file mode is more permissive than 0644, this is a finding.

Fix text

Change the mode of the /etc/resolv.conf file to 0644 or less permissive. # chmod 0644 /etc/resolv.conf

Pro Tips

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