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V-219149

CAT II (Medium)

The Ubuntu operating system must initiate session audits at system startup.

Rule ID

SV-219149r991555_rule

STIG

Canonical Ubuntu 18.04 LTS Security Technical Implementation Guide

Version

V2R15

CCIs

CCI-001464

Discussion

If auditing is enabled late in the startup process, the actions of some startup processes may not be audited. Some audit systems also maintain state information only available if auditing is enabled before a given process is created.

Check Content

Verify the Ubuntu operating system enables auditing at system startup. 

Check that the auditing is enabled in grub with the following command:

grep "^\s*linux" /boot/grub/grub.cfg

linux /vmlinuz-4.15.0-55-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash $vt_handoff audit=1
linux /vmlinuz-4.15.0-55-generic root=/dev/mapper/ubuntu--vg-root ro recovery nomodeset audit=1

If any linux lines do not contain "audit=1", this is a finding.

Fix Text

Configure the Ubuntu operating system to produce audit records at system startup. 

Edit /etc/default/grub file and add "audit=1" to the GRUB_CMDLINE_LINUX option.

To update the grub config file run,

sudo update-grub