Title

Ubuntu 24.04 LTS must have the "chrony" package installed. (Cat III impact)

Discussion

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).

Check Content

Verify the "chrony" package is installed using the following command: $ dpkg -l | grep chrony ii chrony 4.5-1ubuntu4.1 amd64 Versatile implementation of the Network Time Protocol If the "chrony" package is not installed, this is a finding.

Fix Text

Install the "chrony" network time protocol package using the following command: $ sudo apt install -y chrony

Additional Identifiers

Rule ID: SV-270664r1068359_rule

Vulnerability ID: V-270664

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.