Ubuntu 24.04 LTS must not have the "systemd-timesyncd" package installed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-270645	UBTU-24-100010	SV-270645r1068357_rule		Low

Description

Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside the configured acceptable allowance (drift) may be inaccurate. Organizations must consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints).

STIG	Date
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide	2025-05-16

Details

Check Text (C-74678r1066422_chk)

Verify the "systemd-timesyncd" package is not installed with the following command:

$ dpkg -l | grep systemd-timesyncd

If the "systemd-timesyncd" package is installed, this is a finding.

Fix Text (F-74579r1066423_fix)

The "systemd-timesyncd" package will be uninstalled as part of the "chrony" package install. Purge the remaining configuration files for "systemd-timesyncd" from Ubuntu 24.04 LTS:

$ sudo apt-get purge systemd-timesyncd