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Guide to the Secure Configuration of Oracle Linux 8

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Restrict Access to Kernel Message Buffer

    To set the runtime status of the <code>kernel.dmesg_restrict</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.dmesg...
    Rule Low Severity
    Show

  • Disable Kernel Image Loading

    To set the runtime status of the <code>kernel.kexec_load_disabled</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel....
    Rule Medium Severity
    Show

  • Disable loading and unloading of kernel modules

    To set the runtime status of the <code>kernel.modules_disabled</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.mod...
    Rule Medium Severity
    Show

  • Kernel panic on oops

    To set the runtime status of the <code>kernel.panic_on_oops</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.panic_...
    Rule Medium Severity
    Show

  • Limit CPU consumption of the Perf system

    To set the runtime status of the <code>kernel.perf_cpu_time_max_percent</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w k...
    Rule Medium Severity
    Show

  • Limit sampling frequency of the Perf system

    To set the runtime status of the <code>kernel.perf_event_max_sample_rate</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w ...
    Rule Medium Severity
    Show

  • Disallow kernel profiling by unprivileged users

    To set the runtime status of the <code>kernel.perf_event_paranoid</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel....
    Rule Low Severity
    Show

  • deny_ptrace SELinux Boolean

    default - Default SELinux boolean setting.
    on - SELinux boolean is enabled.
    off - SELinux boolean is disabled.
    Value
    Show

  • Configure maximum number of process identifiers

    To set the runtime status of the <code>kernel.pid_max</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.pid_max=6553...
    Rule Medium Severity
    Show

  • Disallow magic SysRq key

    To set the runtime status of the <code>kernel.sysrq</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.sysrq=0</pre> ...
    Rule Medium Severity
    Show

Node 2

siemur/test-space

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