The remote audit system must take appropriate action when audit storage is full.

From Canonical Ubuntu 16.04 Security Technical Implementation Guide

Associated with: CCI-001851

SV-90311r2_rule The remote audit system must take appropriate action when audit storage is full.

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 action that the remote audit system takes when the storage volume becomes full. Check the action that the remote audit system takes when the storage volume becomes full with the following command: # sudo grep disk_full /etc/audisp/audisp-remote.conf disk_full_action = single If the value of the "disk_full_action" option is not "syslog", "single", or "halt", or the line is commented out, this is a finding.

Fix text

Configure the remote audit system to take an appropriate action when the audit storage is full. Add, edit or uncomment the "disk_full_action" option in "/etc/audisp/audisp-remote.conf". Set it to "syslog", "single" or "halt" like the below example: disk_full_action = single

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