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Guide to the Secure Configuration of Oracle Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Add nosuid Option to /var/log

    The <code>nosuid</code> mount option can be used to prevent execution of setuid programs in <code>/var/log</code>. The SUID and SGID permissions should not be required in directories containing log...
    Rule Medium Severity
    Show

  • Add nodev Option to /var

    The <code>nodev</code> mount option can be used to prevent device files from being created in <code>/var</code>. Legitimate character and block devices should exist only in the <code>/dev</code> di...
    Rule Medium Severity
    Show

  • Add noexec Option to /var

    The <code>noexec</code> mount option can be used to prevent binaries from being executed out of <code>/var</code>. Add the <code>noexec</code> option to the fourth column of <code>/etc/fstab</code>...
    Rule Medium Severity
    Show

  • Bind Mount /var/tmp To /tmp

    The <code>/var/tmp</code> directory is a world-writable directory. Bind-mount it to <code>/tmp</code> in order to consolidate temporary storage into one location protected by the same techniques as...
    Rule Unknown Severity
    Show

  • Add nodev Option to /var/tmp

    The <code>nodev</code> mount option can be used to prevent device files from being created in <code>/var/tmp</code>. Legitimate character and block devices should not exist within temporary directo...
    Rule Medium Severity
    Show

  • Add noexec Option to /var/tmp

    The <code>noexec</code> mount option can be used to prevent binaries from being executed out of <code>/var/tmp</code>. Add the <code>noexec</code> option to the fourth column of <code>/etc/fstab</c...
    Rule Medium Severity
    Show

  • 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 should not be required in these world-writable direc...
    Rule Medium Severity
    Show

  • 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 are activated. These protections are applied at the ...
    Group
    Show

  • Disable the uvcvideo module

    If the device contains a camera it should be covered or disabled when not in use.
    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.modules_disabled=1</pre> To make sure that the settin...
    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_on_oops=1</pre> To make sure that the setting is p...
    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 kernel.perf_cpu_time_max_percent=1</pre> To make su...
    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 kernel.perf_event_max_sample_rate=1</pre> To make ...
    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.perf_event_paranoid=2</pre> To make sure that the ...
    Rule Low Severity
    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=65536</pre> To make sure that the setting is persisten...
    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> To make sure that the setting is persistent, add t...
    Rule Medium Severity
    Show

  • Prevent applications from mapping low portion of virtual memory

    To set the runtime status of the <code>vm.mmap_min_addr</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w vm.mmap_min_addr=65536</pre> To make sure that the setting is persi...
    Rule Medium Severity
    Show

  • Disable core dump backtraces

    The <code>ProcessSizeMax</code> option in <code>[Coredump]</code> section of <code>/etc/systemd/coredump.conf</code> specifies the maximum size in bytes of a core which will be processed. Core dump...
    Rule Medium Severity
    Show

  • Disable storing core dump

    The Storage option in [Coredump] sectionof /etc/systemd/coredump.conf can be set to none to disable storing core dumps permanently.
    Rule Medium Severity
    Show

  • Disable Core Dumps for All Users

    To disable core dumps for all users, add the following line to <code>/etc/security/limits.conf</code>, or to a file within the <code>/etc/security/limits.d/</code> directory: <pre>* hard core...
    Rule Medium Severity
    Show

Node 2

siemur/test-space

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

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