The audit log files must be owned by root.

From Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide

Associated with: CCI-001314

SV-90329r2_rule The audit log files must be owned by root.

Vulnerability discussion

Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the Ubuntu operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives.The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements.

Check content

Verify the audit log files are owned by "root". Check where the audit logs are stored on the system using the following command: # sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Using the audit log path from the command above, replace "[log_path]" in the following command: # sudo ls -la [log_path] | cut -d' ' -f3 root If the audit logs are not group-owned by "root", this is a finding.

Fix text

Change the owner of the audit log file by running the following command: Use the following command to get the audit log path: # sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Using the audit log path from the command above, replace "[log_path]" in the following command: # sudo chown root [log_path]

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