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Guide to the Secure Configuration of Red Hat Enterprise Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable telnet Service

    Make sure that the activation of the <code>telnet</code> service on system boot is disabled. The <code>telnet</code> socket can be disabled with t...
    Rule High Severity
    Show

  • TFTP Server

    TFTP is a lightweight version of the FTP protocol which has traditionally been used to configure networking equipment. However, TFTP provides littl...
    Group
    Show

  • TFTP server secure directory

    Specify the directory which is used by TFTP server as a root directory when running in secure mode.
    Value
    Show

  • Disable Samba

    The smb service can be disabled with the following command: 
    $ sudo systemctl mask --now smb.service
    Rule Low Severity
    Show

  • Disable Printer Browsing Entirely if Possible

    By default, CUPS listens on the network for printer list broadcasts on UDP port 631. This functionality is called printer browsing. To disable prin...
    Rule Unknown Severity
    Show

  • Uninstall tftp-server Package

    The tftp-server package can be removed with the following command: 
     $ sudo yum erase tftp-server
    Rule High Severity
    Show

  • Remove tftp Daemon

    Trivial File Transfer Protocol (TFTP) is a simple file transfer protocol, typically used to automatically transfer configuration or boot files betw...
    Rule Low Severity
    Show

  • Disable tftp Service

    The <code>tftp</code> service should be disabled. The <code>tftp</code> service can be disabled with the following command: <pre>$ sudo systemctl ...
    Rule High Severity
    Show

  • Ensure tftp Daemon Uses Secure Mode

    If running the Trivial File Transfer Protocol (TFTP) service is necessary, it should be configured to change its root directory at startup. To do s...
    Rule Medium Severity
    Show

  • Print Support

    The Common Unix Printing System (CUPS) service provides both local and network printing support. A system running the CUPS service can accept print...
    Group
    Show

  • Uninstall CUPS Package

    The cups package can be removed with the following command: 
    $ sudo yum erase cups
    Rule Unknown Severity
    Show

  • 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
    Show

  • 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
    Show

  • Uninstall quagga Package

    The quagga package can be removed with the following command: 
     $ sudo yum erase quagga
    Rule Low Severity
    Show

  • SSH Max authentication attempts

    Specify the maximum number of authentication attempts per connection.
    Value
    Show

  • Disable Print Server Capabilities

    To prevent remote users from potentially connecting to and using locally configured printers, disable the CUPS print server sharing capabilities. T...
    Rule Unknown Severity
    Show

  • Proxy Server

    A proxy server is a very desirable target for a potential adversary because much (or all) sensitive data for a given infrastructure may flow throug...
    Group
    Show

  • Disable Quagga Service

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

  • Samba(SMB) Microsoft Windows File Sharing Server

    When properly configured, the Samba service allows Linux systems to provide file and print sharing to Microsoft Windows systems. There are two soft...
    Group
    Show

  • Configure Samba if Necessary

    All settings for the Samba daemon can be found in <code>/etc/samba/smb.conf</code>. Settings are divided between a <code>[global]</code> configurat...
    Group
    Show

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The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

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