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Red Hat Enterprise Linux 9 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • RHEL 9 must be configured to prevent unrestricted mail relaying.

    <VulnDiscussion>If unrestricted mail relaying is permitted, unauthorized senders could use this host as a mail relay for the purpose of sendi...
    Rule Medium Severity
  • SRG-OS-000046-GPOS-00022

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 SSH daemon must display the date and time of the last successful account logon upon an SSH logon.

    &lt;VulnDiscussion&gt;Providing users feedback on when account accesses last occurred facilitates user recognition and reporting of unauthorized ac...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 system accounts must not have an interactive login shell.

    &lt;VulnDiscussion&gt;Ensuring shells are not given to system accounts upon login makes it more difficult for attackers to make use of system accou...
    Rule Medium Severity
  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must configure the use of the pam_faillock.so module in the /etc/pam.d/password-auth file.

    &lt;VulnDiscussion&gt;If the pam_faillock.so module is not loaded, the system will not correctly lockout accounts to prevent password guessing atta...
    Rule Medium Severity
  • SRG-OS-000069-GPOS-00037

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000095-GPOS-00049

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000206-GPOS-00084

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000072-GPOS-00040

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000375-GPOS-00160

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

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000047-GPOS-00023

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 /etc/gshadow file must be group-owned by root.

    &lt;VulnDiscussion&gt;The "/etc/gshadow" file contains group password hashes. Protection of this file is critical for system security.&lt;/VulnDisc...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

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

    &lt;VulnDiscussion&gt;The "root" group is a highly privileged group. Furthermore, the group-owner of this file should not have any access privilege...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 /boot/grub2/grub.cfg file must be owned by root.

    &lt;VulnDiscussion&gt;The " /boot/grub2/grub.cfg" file stores sensitive system configuration. Protection of this file is critical for system securi...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group

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