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Oracle Linux 8 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

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

    <VulnDiscussion>The "nosuid" mount option causes the system not to execute "setuid" and "setgid" files with owner privileges. This option mus...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 file systems must not execute binary files that are imported via Network File System (NFS).

    &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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 file systems must not interpret character or block special devices that are imported via NFS.

    &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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must prevent files with the setuid and setgid bit set from being executed on file systems that are imported via Network File System (NFS).

    &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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • Local OL 8 initialization files must not execute world-writable programs.

    &lt;VulnDiscussion&gt;If user start-up files execute world-writable programs, especially in unprotected directories, they could be maliciously modi...
    Rule Medium Severity
    Show

  • SRG-OS-000269-GPOS-00103

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must disable kernel dumps unless needed.

    &lt;VulnDiscussion&gt;Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a co...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must disable the "kernel.core_pattern".

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must disable acquiring, saving, and processing core dumps.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must disable core dumps for all users.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must disable storing core dumps.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must disable core dump backtraces.

    &lt;VulnDiscussion&gt;It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • For OL 8 systems using Domain Name Servers (DNS) resolution, at least two name servers must be configured.

    &lt;VulnDiscussion&gt;To provide availability for name resolution services, multiple redundant name servers are mandated. A failure in name resolut...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • Executable search paths within the initialization files of all local interactive OL 8 users must only contain paths that resolve to the system default or the user's home directory.

    &lt;VulnDiscussion&gt;The executable search path (typically the PATH environment variable) contains a list of directories for the shell to search t...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • All OL 8 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-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • All OL 8 world-writable directories must be group-owned by root, sys, bin, or an application group.

    &lt;VulnDiscussion&gt;If a world-writable directory is not group-owned by root, sys, bin, or an application Group Identifier (GID), unauthorized us...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • All OL 8 local interactive users must have a home directory assigned in the "/etc/passwd" file.

    &lt;VulnDiscussion&gt;If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files th...
    Rule Medium Severity
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  • All OL 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
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

  • OL 8 must be configured so that all files and directories contained in local interactive user home directories are group-owned by a group of which the home directory owner is a member.

    &lt;VulnDiscussion&gt;If a local interactive user's files are group-owned by a group of which the user is not a member, unintended users may be abl...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
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  • All OL 8 local interactive user home directories defined in the "/etc/passwd" file must exist.

    &lt;VulnDiscussion&gt;If a local interactive user has a home directory defined that does not exist, the user may be given access to the "/" directo...
    Rule Medium Severity
    Show

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
    Show

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