The operating system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator.

From Apple OS X 10.9 (Mavericks) Workstation Security Technical Implementation Guide

Part of SRG-OS-000109

Associated with: CCI-000770

SV-72791r1_rule The operating system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator.

Vulnerability discussion

Administrator users must never log in directly as root. To assure individual accountability and prevent unauthorized access, logging in as root over a remote connection must be disabled. Administrators should only run commands as root after first authenticating with their individual user names and passwords.

Check content

To check if SSH has root logins enabled, run the following command: sudo grep ^PermitRootLogin /etc/sshd_config If there is no result, or the result is set to 'yes', this is a finding.

Fix text

In order to make sure that PermitRootLogin is disabled by sshd, run the following command: sudo sed -i.bak 's/^[\#]*PermitRootLogin.*/PermitRootLogin no/' /etc/sshd_config

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