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Red Hat Enterprise Linux 9 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • RHEL 9 system commands must be group-owned by root or a system account.

    <VulnDiscussion>If RHEL 9 allowed any user to make changes to software libraries, then those changes might be implemented without undergoing ...
    Rule Medium Severity
    Show

  • SRG-OS-000259-GPOS-00100

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 library files must be owned by root.

    &lt;VulnDiscussion&gt;If RHEL 9 allowed any user to make changes to software libraries, then those changes might be implemented without undergoing ...
    Rule Medium Severity
    Show

  • SRG-OS-000259-GPOS-00100

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 /etc/shadow file must have mode 0000 to prevent unauthorized access.

    &lt;VulnDiscussion&gt;The "/etc/shadow" file contains the list of local system accounts and stores password hashes. Protection of this file is crit...
    Rule Medium Severity
    Show

  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 library directories must be owned by root.

    &lt;VulnDiscussion&gt;If RHEL 9 allowed any user to make changes to software libraries, then those changes might be implemented without undergoing ...
    Rule Medium Severity
    Show

  • SRG-OS-000259-GPOS-00100

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 library directories must be group-owned by root or a system account.

    &lt;VulnDiscussion&gt;If RHEL 9 allowed any user to make changes to software libraries, then those changes might be implemented without undergoing ...
    Rule Medium Severity
    Show

  • SRG-OS-000256-GPOS-00097

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 audit tools must be owned by root.

    &lt;VulnDiscussion&gt;Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...
    Rule Medium Severity
    Show

  • SRG-OS-000256-GPOS-00097

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 audit tools must be group-owned by root.

    &lt;VulnDiscussion&gt;Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data; therefo...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 cron configuration files directory must be owned by root.

    &lt;VulnDiscussion&gt;Service configuration files enable or disable features of their respective services that if configured incorrectly can lead t...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 cron configuration files directory must be group-owned by root.

    &lt;VulnDiscussion&gt;Service configuration files enable or disable features of their respective services that if configured incorrectly can lead t...
    Rule Medium Severity
    Show

  • All RHEL 9 world-writable directories must be owned by root, sys, bin, or an application user.

    &lt;VulnDiscussion&gt;If a world-writable directory is not owned by root, sys, bin, or an application user identifier (UID), unauthorized users may...
    Rule Medium Severity
    Show

  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
    Show

  • A sticky bit must be set on all RHEL 9 public directories.

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

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • All RHEL 9 local files and directories must have a valid group owner.

    &lt;VulnDiscussion&gt;Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as ...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • All RHEL 9 local files and directories must have a valid owner.

    &lt;VulnDiscussion&gt;Unowned files and directories may be unintentionally inherited if a user is assigned the same user identifier "UID" as the UI...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must be configured so that all system device files are correctly labeled to prevent unauthorized modification.

    &lt;VulnDiscussion&gt;If an unauthorized or modified device is allowed to exist on the system, there is the possibility the system may perform unin...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 /etc/crontab file must have mode 0600.

    &lt;VulnDiscussion&gt;Service configuration files enable or disable features of their respective services that if configured incorrectly can lead t...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the Ports, Protocols, and Services Management (PPSM) Category Assignments List (CAL) and vulnerability assessments.

    &lt;VulnDiscussion&gt;To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embeddi...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 network interfaces must not be in promiscuous mode.

    &lt;VulnDiscussion&gt;Network interfaces in promiscuous mode allow for the capture of all network traffic visible to the system. If unauthorized in...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must have the firewalld package installed.

    &lt;VulnDiscussion&gt;"Firewalld" provides an easy and effective way to block/limit remote access to the system via ports, services, and protocols....
    Rule Medium Severity
    Show

  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
    Show

  • The firewalld service on RHEL 9 must be active.

    &lt;VulnDiscussion&gt;"Firewalld" provides an easy and effective way to block/limit remote access to the system via ports, services, and protocols....
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • A RHEL 9 firewall must employ a deny-all, allow-by-exception policy for allowing connections to other systems.

    &lt;VulnDiscussion&gt;Failure to restrict network connectivity only to authorized systems permits inbound connections from malicious systems. It al...
    Rule Medium Severity
    Show

  • SRG-OS-000420-GPOS-00186

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must protect against or limit the effects of denial-of-service (DoS) attacks by ensuring rate-limiting measures on impacted network interfaces are implemented.

    &lt;VulnDiscussion&gt;DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot ac...
    Rule Medium Severity
    Show

  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must enable hardening for the Berkeley Packet Filter just-in-time compiler.

    &lt;VulnDiscussion&gt;When hardened, the extended Berkeley Packet Filter (BPF) just-in-time (JIT) compiler will randomize any kernel addresses in t...
    Rule Medium Severity
    Show

  • SRG-OS-000355-GPOS-00143

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must have the chrony package installed.

    &lt;VulnDiscussion&gt;Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...
    Rule Medium Severity
    Show

  • SRG-OS-000355-GPOS-00143

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 chronyd service must be enabled.

    &lt;VulnDiscussion&gt;Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...
    Rule Medium Severity
    Show

  • SRG-OS-000355-GPOS-00143

    <GroupDescription></GroupDescription>
    Group
    Show

  • RHEL 9 must securely compare internal information system clocks at least every 24 hours.

    &lt;VulnDiscussion&gt;Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...
    Rule Medium Severity
    Show

  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
    Group
    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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