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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

  • Add nosuid Option to /var/tmp

    The <code>nosuid</code> mount option can be used to prevent execution of setuid programs in <code>/var/tmp</code>. The SUID and SGID permissions sh...
    Rule Medium Severity
  • Verify Permissions on Important Files and Directories Are Configured in /etc/permissions.local

    Permissions for many files on a system must be set restrictively to ensure sensitive information is properly protected. This section discusses the ...
    Group
  • Restrict Programs from Dangerous Execution Patterns

    The recommendations in this section are designed to ensure that the system's features to protect against potentially dangerous program execution ar...
    Group
  • kernel.unprivileged_bpf_disabled

    Prevent unprivileged processes from using the bpf() syscall.
    Value
  • Disable the uvcvideo module

    If the device contains a camera it should be covered or disabled when not in use.
    Rule Medium Severity
  • Disable storing core dumps

    To set the runtime status of the <code>kernel.core_pattern</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w kernel.core_pa...
    Rule Medium Severity
  • Configure file name of core dumps

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

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