The Information System Security Officer (ISSO) and System Administrator (SA) (at a minimum) must have mail aliases to be notified of an audit processing failure.

From Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide

Associated with: CCI-000139

SV-90573r2_rule The Information System Security Officer (ISSO) and System Administrator (SA) (at a minimum) must have mail aliases to be notified of an audit processing failure.

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 administrators are notified in the event of an audit processing failure. Note: If postfix is not installed, this is Not Applicable. Check that the "/etc/aliases" file has a defined value for "root". # sudo grep "postmaster: *root$" /etc/aliases If the command does not return a line, or the line is commented out, this is a finding.

Fix text

Configure the Ubuntu operating system to notify administrators in the event of an audit processing failure. Add/update the following line in "/etc/aliases": postmaster: root

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