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III - Administrative Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000363-GPOS-00150

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  • The Red Hat Enterprise Linux operating system must be configured so that a file integrity tool verifies the baseline operating system configuration at least weekly.

    &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-000363-GPOS-00150

    <GroupDescription></GroupDescription>
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  • The Red Hat Enterprise Linux operating system must be configured so that designated personnel are notified if baseline configurations are changed in an unauthorized manner.

    &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-000366-GPOS-00153

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  • The Red Hat Enterprise Linux operating system must prevent the installation of software, patches, service packs, device drivers, or operating system components from a repository without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.

    &lt;VulnDiscussion&gt;Changes to any software components can have significant effects on the overall security of the operating system. This require...
    Rule High Severity
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  • SRG-OS-000366-GPOS-00153

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  • The Red Hat Enterprise Linux operating system must prevent the installation of software, patches, service packs, device drivers, or operating system components of local packages without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.

    &lt;VulnDiscussion&gt;Changes to any software components can have significant effects on the overall security of the operating system. This require...
    Rule High Severity
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  • SRG-OS-000114-GPOS-00059

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  • The Red Hat Enterprise Linux operating system must be configured to disable USB mass storage.

    &lt;VulnDiscussion&gt;USB mass storage permits easy introduction of unknown devices, thereby facilitating malicious activity. Satisfies: SRG-OS-00...
    Rule Medium Severity
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  • SRG-OS-000378-GPOS-00163

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  • The Red Hat Enterprise Linux operating system must be configured so that the Datagram Congestion Control Protocol (DCCP) kernel module is disabled unless required.

    &lt;VulnDiscussion&gt;Disabling DCCP protects the system against exploitation of any flaws in the protocol implementation.&lt;/VulnDiscussion&gt;&l...
    Rule Medium Severity
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  • SRG-OS-000114-GPOS-00059

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  • The Red Hat Enterprise Linux operating system must disable the file system automounter unless required.

    &lt;VulnDiscussion&gt;Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity. S...
    Rule Medium Severity
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  • SRG-OS-000437-GPOS-00194

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  • The Red Hat Enterprise Linux operating system must remove all software components after updated versions have been installed.

    &lt;VulnDiscussion&gt;Previous versions of software components that are not removed from the information system after updates have been installed m...
    Rule Low Severity
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  • SRG-OS-000445-GPOS-00199

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  • The Red Hat Enterprise Linux operating system must enable SELinux.

    &lt;VulnDiscussion&gt;Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...
    Rule Medium Severity
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  • SRG-OS-000445-GPOS-00199

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  • The Red Hat Enterprise Linux operating system must enable the SELinux targeted policy.

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

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  • The Red Hat Enterprise Linux operating system must be configured so that the x86 Ctrl-Alt-Delete key sequence is disabled on the command line.

    &lt;VulnDiscussion&gt;A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as...
    Rule High Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that the x86 Ctrl-Alt-Delete key sequence is disabled in the Graphical User Interface.

    &lt;VulnDiscussion&gt;A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as...
    Rule High Severity
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  • SRG-OS-000480-GPOS-00228

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  • The Red Hat Enterprise Linux operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.

    &lt;VulnDiscussion&gt;Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary acc...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be a vendor supported release.

    &lt;VulnDiscussion&gt;An operating system release is considered "supported" if the vendor continues to provide security patches for the product. Wi...
    Rule High Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system security patches and updates must be installed and up to date.

    &lt;VulnDiscussion&gt;Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information techn...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must not have unnecessary accounts.

    &lt;VulnDiscussion&gt;Accounts providing no operational purpose provide additional opportunities for system compromise. Unnecessary accounts includ...
    Rule Medium Severity
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  • SRG-OS-000104-GPOS-00051

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  • The Red Hat Enterprise Linux operating system must be configured so that all Group Identifiers (GIDs) referenced in the /etc/passwd file are defined in the /etc/group file.

    &lt;VulnDiscussion&gt;If a user is assigned the GID of a group not existing on the system, and a group with the GID is subsequently created, the us...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that the root account must be the only account having unrestricted access to the system.

    &lt;VulnDiscussion&gt;If an account other than root also has a User Identifier (UID) of "0", it has root authority, giving that account unrestricte...
    Rule High Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all files and directories 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
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all files and directories 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
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all local interactive user accounts, upon creation, are assigned a home directory.

    &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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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all local interactive users have a home directory assigned and defined 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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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories have mode 0750 or less permissive.

    &lt;VulnDiscussion&gt;Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.&...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories are owned by their respective users.

    &lt;VulnDiscussion&gt;If a local interactive user does not own their home directory, unauthorized users could access or modify the user's files, an...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories are group-owned by the home directory owners 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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