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Guide to the Secure Configuration of Red Hat Enterprise Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • UEFI Boot Loader Is Not Installed On Removeable Media

    The system must not allow removable media to be used as the boot loader. Remove alternate methods of booting the system from removable media. <code...
    Rule Medium Severity
  • zIPL bootloader configuration

    During the boot process, the bootloader is responsible for starting the execution of the kernel and passing options to it. The default Red Hat Ente...
    Group
  • Enable Auditing to Start Prior to the Audit Daemon in zIPL

    To ensure all processes can be audited, even those which start prior to the audit daemon, check that all boot entries in <code>/boot/loader/entries...
    Rule Medium Severity
  • Extend Audit Backlog Limit for the Audit Daemon in zIPL

    To improve the kernel capacity to queue all log events, even those which start prior to the audit daemon, check that all boot entries in <code>/boo...
    Rule Medium Severity
  • Ensure all zIPL boot entries are BLS compliant

    Ensure that zIPL boot entries fully adheres to Boot Loader Specification (BLS) by checking that <code>/etc/zipl.conf</code> doesn't contain <code>i...
    Rule Medium Severity
  • Ensure zIPL bootmap is up to date

    Make sure that <code>/boot/bootmap</code> is up to date.<br> Every time a boot entry or zIPL configuration is changed <code>/boot/bootmap</code> ne...
    Rule Medium Severity
  • Ensure SELinux Not Disabled in zIPL

    To ensure SELinux is not disabled at boot time, check that no boot entry in <code>/boot/loader/entries/*.conf</code> has <code>selinux=0</code> inc...
    Rule Medium Severity
  • Enable page allocator poisoning in zIPL

    To enable poisoning of free pages, check that all boot entries in <code>/boot/loader/entries/*.conf</code> have <code>page_poison=1</code> included...
    Rule Medium Severity
  • Enable SLUB/SLAB allocator poisoning in zIPL

    To enable poisoning of SLUB/SLAB objects, check that all boot entries in <code>/boot/loader/entries/*.conf</code> have <code>slub_debug=P</code> in...
    Rule Medium Severity
  • Ensure debug-shell service is not enabled in zIPL

    systemd's <code>debug-shell</code> service is intended to diagnose systemd related boot issues with various <code>systemctl</code> commands. Once e...
    Rule Medium Severity

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