TMA-SOLARIS-6.9

Disable root login for SSH

HighLevel 1Automatedsolaris

Description

The PermitRootLogin value (in /etc/ssh/sshd_config) allows for direct root login by a remote user/application to resources on the local host. By default, it is not possible for the root account to log directly into the system console because the account is configured as a role. Audit: pattern match on /etc/ssh/sshd_config as described in the CIS audit procedure.

How it is checked

Audit method: File pattern

File: /etc/ssh/sshd_config
Pattern: (?m)^PermitRootLogin\s+no\b

How it is fixed

Fix method: Guidance or infrastructure patch

Perform the following to implement the recommended state: # awk '/^PermitRootLogin/ { $2 = "no" } { print }' /etc/ssh/sshd_config > /etc/ssh/sshd_config.CIS # mv /etc/ssh/sshd_config.CIS /etc/ssh/sshd_config # svcadm restart svc:/network/ssh

Properties

Operating systems: Any
Tags: solarisssh
Reference: CIS Oracle Solaris 11.4 Benchmark v1.1.0 - 6.9 Disable root login for SSH

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target solaris