The audit system must take appropriate action when the network cannot be used to off-load audit records.

From Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide

Associated with: CCI-001851

SV-90539r2_rule The audit system must take appropriate action when the network cannot be used to off-load audit records.

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 that the audit system takes appropriate action if the network cannot be used to off-load audit records. Check what action will take place if the network connection fails with the following command: # sudo grep -iw "network_failure" /etc/audisp/audisp-remote.conf network_failure_action = stop If the value of the “network_failure_action” option is not "syslog", "single", or "halt", or the line is commented out, this is a finding.

Fix text

Configure the Ubuntu operating system to take appropriate action when the network cannot be used to off-load audit records. Add, edit or uncomment the "network_failure_action" option in "/etc/audisp/audisp-remote.conf". Set it to "syslog", "single" or "halt" like the below example: network_failure_action = single

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