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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

  • Configure auditing of unsuccessful file modifications

    Ensure that unsuccessful attempts to modify a file are audited. The following rules configure audit as described above: <pre>## Unsuccessful file ...
    Rule Medium Severity
  • Configure auditing of successful file modifications

    Ensure that successful attempts to modify a file are audited. The following rules configure audit as described above: <pre>## Successful file modi...
    Rule Medium Severity
  • Configure auditing of loading and unloading of kernel modules

    Ensure that loading and unloading of kernel modules is audited. The following rules configure audit as described above: <pre>## These rules watch ...
    Rule Medium Severity
  • Configure auditing of unsuccessful ownership changes

    Ensure that unsuccessful attempts to change an ownership of files or directories are audited. The following rules configure audit as described abo...
    Rule Medium Severity
  • authlogin_radius SELinux Boolean

    default - Default SELinux boolean setting.
    on - SELinux boolean is enabled.
    off - SELinux boolean is disabled.
    Value
  • Configure auditing of successful ownership changes

    Ensure that successful attempts to change an ownership of files or directories are audited. The following rules configure audit as described above...
    Rule Medium Severity
  • Configure auditing of unsuccessful permission changes

    Ensure that unsuccessful attempts to change file or directory permissions are audited. The following rules configure audit as described above: <pr...
    Rule Medium Severity
  • Configure auditing of successful permission changes

    Ensure that successful attempts to modify permissions of files or directories are audited. The following rules configure audit as described above:...
    Rule Medium Severity
  • Configure audit according to OSPP requirements

    Configure audit to meet requirements for Operating System Protection Profile (OSPP) v4.2.1. Audit defines groups of rules in <code>/usr/share/doc/...
    Rule Medium Severity
  • AppArmor

    Many security vulnerabilities result from bugs in trusted programs. A trusted program runs with privileges that attackers want to possess. The prog...
    Group
  • AppArmor profiles mode

    enforce - Set all AppArmor profiles to enforce mode
    complain - Set all AppArmor profiles to complain mode
    Value
  • 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
  • L1TF vulnerability mitigation

    Defines the L1TF vulneratility mitigations to employ.
    Value
  • MDS vulnerability mitigation

    Defines the MDS vulneratility mitigation to employ.
    Value
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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

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