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I - Mission Critical Classified

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000375-GPOS-00160

    <GroupDescription></GroupDescription>
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  • 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
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  • 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

  • SRG-OS-000376-GPOS-00161

    <GroupDescription></GroupDescription>
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  • RHEL 8 must accept Personal Identity Verification (PIV) credentials.

    &lt;VulnDiscussion&gt;The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. The DoD has mandated the...
    Rule Medium Severity
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  • SRG-OS-000433-GPOS-00192

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000433-GPOS-00193

    <GroupDescription></GroupDescription>
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  • 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>
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  • 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
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  • SRG-OS-000445-GPOS-00199

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • 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
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The RHEL 8 SSH daemon must perform strict mode checking of home directory configuration files.

    &lt;VulnDiscussion&gt;If other users have access to modify user-specific SSH configuration files, they may be able to log on to the system as anoth...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The RHEL 8 SSH daemon must not allow authentication using known host’s authentication.

    &lt;VulnDiscussion&gt;Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The RHEL 8 SSH daemon must not allow Kerberos authentication, except to fulfill documented and validated mission requirements.

    &lt;VulnDiscussion&gt;Configuring these settings for the SSH daemon provides additional assurance that remote logon via SSH will not use unused met...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • RHEL 8 must use a separate file system for /var.

    &lt;VulnDiscussion&gt;The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must use a separate file system for /var/log.

    &lt;VulnDiscussion&gt;The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must use a separate file system for the system audit data path.

    &lt;VulnDiscussion&gt;The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • A separate RHEL 8 filesystem must be used for the /tmp directory.

    &lt;VulnDiscussion&gt;The use of separate file systems for different paths can protect the system from failures resulting from a file system becomi...
    Rule Medium Severity
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  • SRG-OS-000109-GPOS-00056

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  • RHEL 8 must not permit direct logons to the root account using remote access via SSH.

    &lt;VulnDiscussion&gt;Even though the communications channel may be encrypted, an additional layer of security is gained by extending the policy of...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The rsyslog service must be running in RHEL 8.

    &lt;VulnDiscussion&gt;Configuring RHEL 8 to implement organization-wide security implementation guides and security checklists ensures compliance w...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • RHEL 8 must prevent files with the setuid and setgid bit set from being executed on file systems that contain user home directories.

    &lt;VulnDiscussion&gt;The "nosuid" mount option causes the system not to execute "setuid" and "setgid" files with owner privileges. This option mus...
    Rule Medium Severity
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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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