Ubuntu 24.04 LTS must not have the "ntp" package installed.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
low	V-270646	SRG-OS-000480-GPOS-00227	UBTU-24-100020	SV-270646r1068358_rule	2025-02-18	1

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).

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).

ℹ️ Check
Verify the "ntp" package is not installed with the following command: $ dpkg -l \| grep ntp If the "ntp" package is installed, this is a finding.

✔️ Fix
Uninstall the "ntp" package using the following command: $ sudo apt remove ntp If there are additional configuration files on the system that must be removed, the following command can be used instead: $ sudo apt-get purge ntp