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

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-26412r1_rule The /etc/hosts file must have mode 0644 or less permissive.

Vulnerability discussion

The /etc/hosts file (or equivalent) configures local host name to IP address mappings that typically take precedence over DNS resolution. If this file is maliciously modified, it could cause the failure or compromise of security functions requiring name resolution, which may include time synchronization, centralized authentication, and remote system logging.

Check content

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

Fix text

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

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