The Ubuntu operating system must not have accounts configured with blank or null passwords.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-251503	UBTU-20-010462	SV-251503r808506_rule		High

Description
If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments.

STIG	Date
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide	2021-11-19

Details

Check Text ( C-54938r808504_chk )
Check the "/etc/shadow" file for blank passwords with the following command: $ sudo awk -F: '!$2 {print $1}' /etc/shadow If the command returns any results, this is a finding.

Fix Text (F-54892r808505_fix)
Configure all accounts on the system to have a password or lock the account with the following commands: Perform a password reset: $ sudo passwd [username] Lock an account: $ sudo passwd -l [username]