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RHEL-09-611155 RHEL 9 must not have accounts configured with blank or null passwords.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to CM-6 via CCI-000366

Title

RHEL 9 must not have accounts configured with blank or null passwords.

Control

Verify that null or blank passwords cannot be used 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 in and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments.

Related controls

CCI-000366

Fix

Configure all accounts on RHEL 9 to have a password or lock the account with the following commands: Perform a password reset: $ sudo passwd [username] To lock an account: $ sudo passwd -l [username]