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Red Hat Enterprise Linux 8 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must enable hardening for the Berkeley Packet Filter Just-in-time compiler.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
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  • SRG-OS-000191-GPOS-00080

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  • The RHEL 8 operating system must implement the Endpoint Security for Linux Threat Prevention tool.

    &lt;VulnDiscussion&gt;Adding endpoint security tools can provide the capability to automatically take actions in response to malicious behavior, wh...
    Rule Medium Severity
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  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
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  • RHEL 8 systems, versions 8.2 and above, must configure SELinux context type to allow the use of a non-default faillock tally directory.

    &lt;VulnDiscussion&gt;By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...
    Rule Medium Severity
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  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
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  • RHEL 8 systems below version 8.2 must configure SELinux context type to allow the use of a non-default faillock tally directory.

    &lt;VulnDiscussion&gt;By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must not enable IPv4 packet forwarding unless the system is a router.

    &lt;VulnDiscussion&gt;Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this s...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • The RHEL 8 operating system must not have accounts configured with blank or null passwords.

    &lt;VulnDiscussion&gt;If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...
    Rule High Severity
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  • SRG-OS-000259-GPOS-00100

    <GroupDescription></GroupDescription>
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  • RHEL 8 library directories must have mode 755 or less permissive.

    &lt;VulnDiscussion&gt;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
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  • SRG-OS-000259-GPOS-00100

    <GroupDescription></GroupDescription>
    Group
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  • RHEL 8 library directories must be owned by root.

    &lt;VulnDiscussion&gt;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
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  • SRG-OS-000259-GPOS-00100

    <GroupDescription></GroupDescription>
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  • RHEL 8 library directories must be group-owned by root or a system account.

    &lt;VulnDiscussion&gt;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
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  • SRG-OS-000445-GPOS-00199

    <GroupDescription></GroupDescription>
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  • The RHEL 8 operating system must use a file integrity tool to verify correct operation of all security functions.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly, and the failure may go unnotice...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • RHEL 8 must specify the default "include" directory for the /etc/sudoers file.

    &lt;VulnDiscussion&gt;The "sudo" command allows authorized users to run programs (including shells) as other users, system users, and root. The "/e...
    Rule Medium Severity
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  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
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  • The RHEL 8 operating system must not be configured to bypass password requirements for privilege escalation.

    &lt;VulnDiscussion&gt;Without re-authentication, users may access resources or perform tasks for which they do not have authorization. When opera...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • RHEL 8 must ensure the password complexity module is enabled in the system-auth file.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • RHEL 8 systems below version 8.4 must ensure the password complexity module in the system-auth file is configured for three retries or less.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • RHEL 8 systems below version 8.4 must ensure the password complexity module in the password-auth file is configured for three retries or less.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • RHEL 8 systems, version 8.4 and above, must ensure the password complexity module is configured for three retries or less.

    &lt;VulnDiscussion&gt;Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...
    Rule Medium Severity
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  • SRG-OS-000077-GPOS-00045

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  • RHEL 8 must be configured in the system-auth file to prohibit password reuse for a minimum of five generations.

    &lt;VulnDiscussion&gt;Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The graphical display manager must not be the default target on RHEL 8 unless approved.

    &lt;VulnDiscussion&gt;Internet services that are not required for system or application processes must not be active to decrease the attack surface...
    Rule Medium Severity
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  • SRG-OS-000324-GPOS-00125

    <GroupDescription></GroupDescription>
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  • RHEL 8 must prevent nonprivileged users from executing privileged functions, including disabling, circumventing, or altering implemented security safeguards/countermeasures.

    &lt;VulnDiscussion&gt;Preventing nonprivileged users from executing privileged functions mitigates the risk that unauthorized individuals or proces...
    Rule Medium Severity
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  • SRG-OS-000250-GPOS-00093

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  • RHEL 8 SSH server must be configured to use only FIPS-validated key exchange algorithms.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections provided by FIPS-validated cryptographic algorithms, information can be viewed an...
    Rule Medium Severity
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  • SRG-OS-000366-GPOS-00153

    <GroupDescription></GroupDescription>
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  • RHEL 8 must ensure cryptographic verification of vendor software packages.

    &lt;VulnDiscussion&gt;Cryptographic verification of vendor software packages ensures that all software packages are obtained from a valid source an...
    Rule Medium Severity
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  • SRG-OS-000363-GPOS-00150

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  • RHEL 8 must be configured to allow sending email notifications of unauthorized configuration changes to designated personnel.

    &lt;VulnDiscussion&gt;Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...
    Rule Medium Severity
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  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
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  • RHEL 8 must terminate idle user sessions.

    &lt;VulnDiscussion&gt;Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take c...
    Rule Medium Severity
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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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  • All RHEL 8 local interactive user home directories must be group-owned by the home directory owner’s primary group.

    &lt;VulnDiscussion&gt;If the Group Identifier (GID) of a local interactive user’s home directory is not the same as the primary GID of the user, th...
    Rule Medium Severity
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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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