STIGQter: STIG Summary: Red Hat Enterprise Linux 8 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

RHEL 8 must not permit direct logons to the root account using remote access via SSH.

DISA Rule

SV-230296r627750_rule

Vulnerability Number

V-230296

Group Title

SRG-OS-000109-GPOS-00056

Rule Version

RHEL-08-010550

Severity

CAT II

CCI(s)

• CCI-000770 - The organization requires individuals to be authenticated with an individual authenticator when a group authenticator is employed.

Weight

10

Fix Recommendation

Configure RHEL 8 to stop users from logging on remotely as the "root" user via SSH.

Edit the appropriate "/etc/ssh/sshd_config" file to uncomment or add the line for the "PermitRootLogin" keyword and set its value to "no":

PermitRootLogin no

The SSH daemon must be restarted for the changes to take effect. To restart the SSH daemon, run the following command:

$ sudo systemctl restart sshd.service

Check Contents

Verify remote access using SSH prevents users from logging on directly as "root".

Check that SSH prevents users from logging on directly as "root" with the following command:

$ sudo grep -i PermitRootLogin /etc/ssh/sshd_config

PermitRootLogin no

If the "PermitRootLogin" keyword is set to "yes", is missing, or is commented out, this is a finding.

Vulnerability Number

V-230296

Documentable

False

Rule Version

RHEL-08-010550

Severity Override Guidance

Verify remote access using SSH prevents users from logging on directly as "root".

Check that SSH prevents users from logging on directly as "root" with the following command:

$ sudo grep -i PermitRootLogin /etc/ssh/sshd_config

PermitRootLogin no

If the "PermitRootLogin" keyword is set to "yes", is missing, or is commented out, this is a finding.

Check Content Reference

M

Target Key

2921

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