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UBTU-24-300027 Ubuntu 24.04 LTS must not have accounts configured with blank or null passwords.

DISA STIG library V1R7
All changes in this version
first version loaded CAT I

Maps to CM-6 via CCI-000366

Title

Ubuntu 24.04 LTS must not have accounts configured with blank or null passwords.

Control

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.

Discussion

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

Related controls

CCI-000366

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]