Ubuntu vendor packaged system security patches and updates must be installed and up to date.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-75391	UBTU-16-010010	SV-90071r4_rule		Medium

Description
Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information technology (IT) systems. However, failure to keep Ubuntu operating system and application software patched is a common mistake made by IT professionals. New patches are released daily, and it is often difficult for even experienced System Administrators to keep abreast of all the new patches. When new weaknesses in an Ubuntu operating system exist, patches are usually made available by the vendor to resolve the problems. If the most recent security patches and updates are not installed, unauthorized users may take advantage of weaknesses in the unpatched software. The lack of prompt attention to patching could result in a system compromise.

Description

Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information technology (IT) systems. However, failure to keep Ubuntu operating system and application software patched is a common mistake made by IT professionals. New patches are released daily, and it is often difficult for even experienced System Administrators to keep abreast of all the new patches. When new weaknesses in an Ubuntu operating system exist, patches are usually made available by the vendor to resolve the problems. If the most recent security patches and updates are not installed, unauthorized users may take advantage of weaknesses in the unpatched software. The lack of prompt attention to patching could result in a system compromise.

STIG	Date
Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide	2018-07-18

Details

Check Text ( C-75135r3_chk )
Verify the Ubuntu operating system security patches and updates are installed and up to date. Updates are required to be applied with a frequency determined by the site or Program Management Office (PMO). Obtain the list of available package security updates from Ubuntu. The URL for updates is https://www.Ubuntu.com/usn/. It is important to note that updates provided by Ubuntu may not be present on the system if the underlying packages are not installed. Check that the available package security updates have been installed on the system with the following command: # /usr/lib/update-notifier/apt-check --human-readable 246 packages can be updated. 0 updates are security updates. If security package updates have not been performed on the system within the timeframe that the site/program documentation requires, this is a finding. Typical update frequency may be overridden by Information Assurance Vulnerability Alert (IAVA) notifications from JFHQ-DoDIN. If the Ubuntu operating system is in non-compliance with the Information Assurance Vulnerability Management (IAVM) process, this is a finding.

Check Text ( C-75135r3_chk )

Verify the Ubuntu operating system security patches and updates are installed and up to date. Updates are required to be applied with a frequency determined by the site or Program Management Office (PMO).

Obtain the list of available package security updates from Ubuntu. The URL for updates is https://www.Ubuntu.com/usn/. It is important to note that updates provided by Ubuntu may not be present on the system if the underlying packages are not installed.

Check that the available package security updates have been installed on the system with the following command:

# /usr/lib/update-notifier/apt-check --human-readable

246 packages can be updated.
0 updates are security updates.

If security package updates have not been performed on the system within the timeframe that the site/program documentation requires, this is a finding.

Typical update frequency may be overridden by Information Assurance Vulnerability Alert (IAVA) notifications from JFHQ-DoDIN.

If the Ubuntu operating system is in non-compliance with the Information Assurance Vulnerability Management (IAVM) process, this is a finding.

Fix Text (F-82019r4_fix)
Install the Ubuntu operating system patches or updated packages available from Canonical within 30 days or sooner as local policy dictates.