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Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • There must be no "shosts.equiv" files on the OL 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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • There must be no ".shosts" files on the OL 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
  • SRG-OS-000480-GPOS-00227

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

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must have the packages required to use 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
  • SRG-OS-000480-GPOS-00227

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

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

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

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

    <GroupDescription></GroupDescription>
    Group
  • The OL 8 SSH daemon must not allow Kerberos authentication, except to fulfill documented and validated mission requirements.

    &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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • The OL 8 SSH daemon must not allow GSSAPI authentication, except to fulfill documented and validated mission requirements.

    &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
  • SRG-OS-000480-GPOS-00227

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

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

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

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must use a separate file system for "/tmp".

    &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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must use a separate file system for /var/tmp.

    &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
  • SRG-OS-000109-GPOS-00056

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must not permit direct logons to the root account using remote access via SSH.

    &lt;VulnDiscussion&gt;Although the communications channel may be encrypted, an additional layer of security is gained by extending the policy of no...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must have the rsyslog service enabled and active.

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

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

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must prevent files with the setuid and setgid bit set from being executed on the /boot directory.

    &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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must prevent files with the setuid and setgid bit set from being executed on the /boot/efi directory.

    &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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must prevent special devices on non-root local partitions.

    &lt;VulnDiscussion&gt;The "nodev" mount option causes the system to not interpret character or block special devices. Executing character or block ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 file systems that contain user home directories must not execute binary files.

    &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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 file systems must not interpret character or block special devices from untrusted file systems.

    &lt;VulnDiscussion&gt;The "nodev" mount option causes the system not to interpret character or block special devices. Executing character or block ...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 file systems must not execute binary files on 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
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • OL 8 must prevent files with the setuid and setgid bit set from being executed on file systems that are used with removable media.

    &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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