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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00227

    Group
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  • RHEL 9 must disable the ability of systemd to spawn an interactive boot process.

    Using interactive or recovery boot, the console user could disable auditing, firewalls, or other services, weakening system security.
    Rule Medium Severity
    Show

  • SRG-OS-000080-GPOS-00048

    Group
    Show

  • RHEL 9 must require a unique superusers name upon booting into single-user and maintenance modes.

    Having a nondefault grub superuser username makes password-guessing attacks less effective.
    Rule High Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • RHEL 9 /boot/grub2/grub.cfg file must be group-owned by root.

    The "root" group is a highly privileged group. Furthermore, the group-owner of this file should not have any access privileges anyway.
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • RHEL 9 /boot/grub2/grub.cfg file must be owned by root.

    The " /boot/grub2/grub.cfg" file stores sensitive system configuration. Protection of this file is critical for system security.
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • RHEL 9 must disable virtual system calls.

    System calls are special routines in the Linux kernel, which userspace applications ask to do privileged tasks. Invoking a system call is an expensive operation because the processor must interrupt...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    Group
    Show

  • RHEL 9 must clear the page allocator to prevent use-after-free attacks.

    Poisoning writes an arbitrary value to freed pages, so any modification or reference to that page after being freed or before being initialized will be detected and prevented. This prevents many ty...
    Rule Medium Severity
    Show

  • SRG-OS-000433-GPOS-00192

    Group
    Show

  • RHEL 9 must clear SLUB/SLAB objects to prevent use-after-free attacks.

    Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory inclu...
    Rule Medium Severity
    Show

  • SRG-OS-000433-GPOS-00193

    Group
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  • RHEL 9 must enable mitigations against processor-based vulnerabilities.

    Kernel page-table isolation is a kernel feature that mitigates the Meltdown security vulnerability and hardens the kernel against attempts to bypass kernel address space layout randomization (KASLR...
    Rule Low Severity
    Show

  • SRG-OS-000037-GPOS-00015

    Group
    Show

  • RHEL 9 must enable auditing of processes that start prior to the audit daemon.

    Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. If auditi...
    Rule Low Severity
    Show

  • SRG-OS-000132-GPOS-00067

    Group
    Show

  • RHEL 9 must restrict access to the kernel message buffer.

    Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of ...
    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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