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Guide to the Secure Configuration of Red Hat Enterprise Linux CoreOS 4

Rules, Groups, and Values defined within the XCCDF Benchmark

  • AppArmor profiles mode

    enforce - Set all AppArmor profiles to enforce mode
    complain - Set all AppArmor profiles to complain mode
    Value
    Show

  • GRUB2 bootloader configuration

    During the boot process, the boot loader is responsible for starting the execution of the kernel and passing options to it. The boot loader allows ...
    Group
    Show

  • L1TF vulnerability mitigation

    Defines the L1TF vulneratility mitigations to employ.
    Value
    Show

  • MDS vulnerability mitigation

    Defines the MDS vulneratility mitigation to employ.
    Value
    Show

  • Enable Kernel Page-Table Isolation (KPTI)

    To enable Kernel page-table isolation, add the argument <code>pti=on</code> to all BLS (Boot Loader Specification) entries ('options' line) for the...
    Rule High Severity
    Show

  • Disable vsyscalls

    To disable use of virtual syscalls, add the argument <code>vsyscall=none</code> to all BLS (Boot Loader Specification) entries ('options' line) for...
    Rule Medium Severity
    Show

  • Disable Recovery Booting

    Red Hat Enterprise Linux CoreOS 4 systems support an "recovery boot" option that can be used to prevent services from being started. The <code>GRUB...
    Rule Medium Severity
    Show

  • IOMMU configuration directive

    On x86 architecture supporting VT-d, the IOMMU manages the access control policy between the hardware devices and some of the system critical u...
    Rule Unknown Severity
    Show

  • Configure L1 Terminal Fault mitigations

    L1 Terminal Fault (L1TF) is a hardware vulnerability which allows unprivileged speculative access to data which is available in the Level 1 Data Ca...
    Rule High Severity
    Show

  • Force kernel panic on uncorrected MCEs

    A Machine Check Exception is an error generated by the CPU itdetects an error in itself, memory or I/O devices. These errors may be corrected and g...
    Rule Medium Severity
    Show

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