Vulnerability 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

Verify the "chrony" package is installed using the following command:

$ dpkg -l | grep chrony
ii chrony 4.2-2ubuntu2 amd64 Versatile implementation of the Network Time Protocol

If the "chrony" package is not installed, this is a finding.

Fix

Install the "chrony" network time protocol package using the following command:

$ sudo apt-get install chrony