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Guide to the Secure Configuration of Oracle Linux 7

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
  • 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
  • TFTP server secure directory

    Specify the directory which is used by TFTP server as a root directory when running in secure mode.
    Value
  • Uninstall tftp-server Package

    The tftp-server package can be removed with the following command:
     $ sudo yum erase tftp-server
    Rule High Severity
  • 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
  • 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
  • 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
  • Configure the CUPS Service if Necessary

    CUPS provides the ability to easily share local printers with other systems over the network. It does this by allowing systems to share lists of av...
    Group
  • 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
  • Disable Squid if Possible

    If Squid was installed and activated, but the system does not need to act as a proxy server, then it should be disabled and removed.
    Group
  • Uninstall squid Package

    The squid package can be removed with the following command:
     $ sudo yum erase squid
    Rule Unknown Severity
  • Install the OpenSSH Server Package

    The <code>openssh-server</code> package should be installed. The <code>openssh-server</code> package can be installed with the following command: <...
    Rule Medium Severity
  • Remove the FreeRadius Server Package

    The <code>freeradius</code> package should be removed if not in use. Is this system a RADIUS server? If not, remove the package. The <code>freeradi...
    Rule Low Severity
  • Hardware RNG Entropy Gatherer Daemon

    The rngd feeds random data from hardware device to kernel random device.
    Group
  • 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
  • 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
  • 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

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