The audit event multiplexor must be configured to off-load audit logs onto a different system or storage media from the system being audited.

From Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide

Associated with: CCI-001851

SV-90339r2_rule The audit event multiplexor must be configured to off-load audit logs onto a different system or storage media from the system being audited.

Vulnerability discussion

Information stored in one location is vulnerable to accidental or incidental deletion or alteration.Off-loading is a common process in information systems with limited audit storage capacity.

Check content

Verify the audit event multiplexor is configured to off-load audit records to a different system or storage media from the system being audited. Check that the records are being off-loaded to a remote server with the following command: # sudo grep -i active /etc/audisp/plugins.d/au-remote.conf active = yes If "active" is not set to "yes", or the line is commented out, this is a finding.

Fix text

Configure the audit event multiplexor to off-load audit records to a different system or storage media from the system being audited. Set the "active" option in "/etc/audisp/plugins.d/au-remote.conf" to "yes": active = yes In order for the changes to take effect, the audit daemon must be restarted. The audit daemon can be restarted with the following command: # sudo systemctl restart auditd.service

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