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Red Hat Enterprise Linux 8 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • RHEL 8 library files must be group-owned by root or a system account.

    <VulnDiscussion>If RHEL 8 were to allow any user to make changes to software libraries, then those changes might be implemented without under...
    Rule Medium Severity
    Show

  • SRG-OS-000363-GPOS-00150

    <GroupDescription></GroupDescription>
    Group
    Show

  • The RHEL 8 file integrity tool must notify the system administrator when changes to the baseline configuration or anomalies in the operation of any security functions are discovered within an organizationally defined frequency.

    &lt;VulnDiscussion&gt;Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...
    Rule Medium Severity
    Show

  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must prevent the installation of software, patches, service packs, device drivers, or operating system components from a repository without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.

    &lt;VulnDiscussion&gt;Changes to any software components can have significant effects on the overall security of the operating system. This require...
    Rule High Severity
    Show

  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must prevent code from being executed on file systems that are used with removable media.

    &lt;VulnDiscussion&gt;The "noexec" mount option causes the system not to execute binary files. This option must be used for mounting any file syste...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must prevent the installation of software, patches, service packs, device drivers, or operating system components of local packages without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.

    &lt;VulnDiscussion&gt;Changes to any software components can have significant effects on the overall security of the operating system. This require...
    Rule High Severity
    Show

  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must prevent the loading of a new kernel for later execution.

    &lt;VulnDiscussion&gt;Changes to any software components can have significant effects on the overall security of the operating system. This require...
    Rule Medium Severity
    Show

  • SRG-OS-000312-GPOS-00122

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must enable kernel parameters to enforce discretionary access control on symlinks.

    &lt;VulnDiscussion&gt;Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have di...
    Rule Medium Severity
    Show

  • SRG-OS-000312-GPOS-00122

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must enable kernel parameters to enforce discretionary access control on hardlinks.

    &lt;VulnDiscussion&gt;Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have di...
    Rule Medium Severity
    Show

  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must restrict access to the kernel message buffer.

    &lt;VulnDiscussion&gt;Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of infor...
    Rule Low Severity
    Show

  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must implement non-executable data to protect its memory from unauthorized code execution.

    &lt;VulnDiscussion&gt;Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations ...
    Rule Medium Severity
    Show

  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must prevent kernel profiling by unprivileged users.

    &lt;VulnDiscussion&gt;Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of infor...
    Rule Low Severity
    Show

  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must require users to provide a password for privilege escalation.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operati...
    Rule Medium Severity
    Show

  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must require users to reauthenticate for privilege escalation.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operati...
    Rule Medium Severity
    Show

  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must have the packages required for multifactor authentication installed.

    &lt;VulnDiscussion&gt;Using an authentication device, such as a DoD Common Access Card (CAC) or token that is separate from the information system,...
    Rule Medium Severity
    Show

  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must implement certificate status checking for multifactor authentication.

    &lt;VulnDiscussion&gt;Using an authentication device, such as a DoD Common Access Card (CAC) or token that is separate from the information system,...
    Rule Medium Severity
    Show

  • YUM must remove all software components after updated versions have been installed on RHEL 8.

    &lt;VulnDiscussion&gt;Previous versions of software components that are not removed from the information system after updates have been installed m...
    Rule Low Severity
    Show

  • RHEL 8 must clear the page allocator to prevent use-after-free attacks.

    &lt;VulnDiscussion&gt;Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations ...
    Rule Medium Severity
    Show

  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must disable virtual syscalls.

    &lt;VulnDiscussion&gt;Syscalls are special routines in the Linux kernel, which userspace applications ask to do privileged tasks. Invoking a syste...
    Rule Medium Severity
    Show

  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must clear SLUB/SLAB objects to prevent use-after-free attacks.

    &lt;VulnDiscussion&gt;Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations t...
    Rule Medium Severity
    Show

  • SRG-OS-000433-GPOS-00193

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must implement address space layout randomization (ASLR) to protect its memory from unauthorized code execution.

    &lt;VulnDiscussion&gt;Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations ...
    Rule Medium Severity
    Show

  • SRG-OS-000437-GPOS-00194

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000445-GPOS-00199

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must enable the SELinux targeted policy.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • There must be no shosts.equiv files on the RHEL 8 operating system.

    &lt;VulnDiscussion&gt;The "shosts.equiv" files are used to configure host-based authentication for the system via SSH. Host-based authentication is...
    Rule High Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • There must be no .shosts files on the RHEL 8 operating system.

    &lt;VulnDiscussion&gt;The ".shosts" files are used to configure host-based authentication for individual users or the system via SSH. Host-based au...
    Rule High Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 8 must enable the hardware random number generator entropy gatherer service.

    &lt;VulnDiscussion&gt;The most important characteristic of a random number generator is its randomness, namely its ability to deliver random number...
    Rule Low Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • The RHEL 8 SSH public host key files must have mode 0644 or less permissive.

    &lt;VulnDiscussion&gt;If a public host key file is modified by an unauthorized user, the SSH service may be compromised.&lt;/VulnDiscussion&gt;&lt;...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • The RHEL 8 SSH private host key files must have mode 0640 or less permissive.

    &lt;VulnDiscussion&gt;If an unauthorized user obtains the private SSH host key file, the host could be impersonated.&lt;/VulnDiscussion&gt;&lt;Fals...
    Rule Medium Severity
    Show

Node 2

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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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