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Australian Cyber Security Centre (ACSC) Essential Eight

Rules and Groups employed by this XCCDF Profile

  • Disable Squid

    The squid service can be disabled with the following command:
    $ sudo systemctl mask --now squid.service
    Rule Unknown Severity
  • Network Routing

    A router is a very desirable target for a potential adversary because they fulfill a variety of infrastructure networking roles such as access to ...
    Group
  • Disable Quagga if Possible

    If Quagga was installed and activated, but the system does not need to act as a router, then it should be disabled and removed.
    Group
  • Uninstall quagga Package

    The quagga package can be removed with the following command:
     $ sudo yum erase quagga
    Rule Low Severity
  • Disable Quagga Service

    The zebra service can be disabled with the following command:
    $ sudo systemctl mask --now zebra.service
    Rule Medium Severity
  • SSH Server

    The SSH protocol is recommended for remote login and remote file transfer. SSH provides confidentiality and integrity for data exchanged between tw...
    Group
  • Configure OpenSSH Server if Necessary

    If the system needs to act as an SSH server, then certain changes should be made to the OpenSSH daemon configuration file <code>/etc/ssh/sshd_confi...
    Group
  • Allow Only SSH Protocol 2

    Only SSH protocol version 2 connections should be permitted. The default setting in <code>/etc/ssh/sshd_config</code> is correct, and can be verifi...
    Rule High Severity
  • Disable SSH Access via Empty Passwords

    Disallow SSH login with empty passwords. The default SSH configuration disables logins with empty passwords. The appropriate configuration is used ...
    Rule High Severity
  • Disable GSSAPI Authentication

    Unless needed, SSH should not permit extraneous or unnecessary authentication mechanisms like GSSAPI. <br> The default SSH configuration disallows ...
    Rule Medium Severity

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