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← Back to SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

V-22323

CAT II (Medium)

The /etc/hosts file must be owned by root.

Rule ID

SV-44981r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-000225

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

Verify the /etc/hosts file is owned by root.
# ls -l /etc/hosts
If the file is not owned by root, this is a finding.

Fix Text

Change the owner of the /etc/hosts file to root.
# chown root /etc/hosts