The System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) must be alerted of an audit processing failure event.

From Canonical Ubuntu 16.04 Security Technical Implementation Guide

Part of SRG-OS-000046-GPOS-00022

Associated with: CCI-000139

SV-90305r2_rule The System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) must be alerted of an audit processing failure event.

Vulnerability discussion

It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected.Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded.This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both.

Check content

Verify that the System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) are notified in the event of an audit processing failure. Check that the Ubuntu operating system notifies the SA and ISSO (at a minimum) in the event of an audit processing failure with the following command: #sudo grep space_left_action /etc/audit/auditd.conf action_mail_acct = root If the value of the "action_mail_acct" keyword is not set to "root" and/or other accounts for security personnel, the "action_mail_acct" keyword is missing, or the retuned line is commented out, this is a finding.

Fix text

Configure "auditd" service to notify the System Administrator (SA) and Information System Security Officer (ISSO) in the event of an audit processing failure. Edit the following line in "/etc/audit/auditd.conf" to ensure that administrators are notified via email for those situations: action_mail_acct = root

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