UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

The SSH daemon must not allow authentication using an empty password.


Overview

Finding ID Version Rule ID IA Controls Severity
V-38614 RHEL-06-000239 SV-50415r1_rule High
Description
Configuring this setting for the SSH daemon provides additional assurance that remote login via SSH will require a password, even in the event of misconfiguration elsewhere.
STIG Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2018-03-01

Details

Check Text ( C-46172r1_chk )
To determine how the SSH daemon's "PermitEmptyPasswords" option is set, run the following command:

# grep -i PermitEmptyPasswords /etc/ssh/sshd_config

If no line, a commented line, or a line indicating the value "no" is returned, then the required value is set.
If the required value is not set, this is a finding.
Fix Text (F-43562r1_fix)
To explicitly disallow remote login from accounts with empty passwords, add or correct the following line in "/etc/ssh/sshd_config":

PermitEmptyPasswords no

Any accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords.