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SUSE Linux Enterprise Server 15 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must be a vendor-supported release.

    &lt;VulnDiscussion&gt;A SUSE operating system release is considered "supported" if the vendor continues to provide security patches for the product...
    Rule High Severity
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  • SRG-OS-000191-GPOS-00080

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must implement the Endpoint Security for Linux Threat Prevention tool.

    &lt;VulnDiscussion&gt;Adding endpoint security tools can provide the capability to automatically take actions in response to malicious behavior, wh...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • Vendor-packaged SUSE 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-000023-GPOS-00006

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access via local console.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy a...
    Rule Medium Severity
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  • SRG-OS-000074-GPOS-00042

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must not have the vsftpd package installed if not required for operational support.

    &lt;VulnDiscussion&gt;It is detrimental for SUSE operating systems to provide, or install by default, functionality exceeding requirements or missi...
    Rule High Severity
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  • SRG-OS-000023-GPOS-00006

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access via SSH.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy a...
    Rule Medium Severity
    Show

  • SRG-OS-000023-GPOS-00006

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner until users acknowledge the usage conditions and take explicit actions to log on for further access to the local graphical user interface (GUI).

    &lt;VulnDiscussion&gt;The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner until users acknowledge the usage...
    Rule Medium Severity
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  • SRG-OS-000024-GPOS-00007

    <GroupDescription></GroupDescription>
    Group
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  • The SUSE operating system file /etc/gdm/banner must contain the Standard Mandatory DoD Notice and Consent banner text.

    &lt;VulnDiscussion&gt;The banner must be acknowledged by the user prior to allowing the user access to the SUSE operating system. This provides ass...
    Rule Medium Severity
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  • SRG-OS-000228-GPOS-00088

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must display a banner before granting local or remote access to the system via a graphical user logon.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy a...
    Rule Medium Severity
    Show

  • SRG-OS-000228-GPOS-00088

    <GroupDescription></GroupDescription>
    Group
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  • The SUSE operating system must display the approved Standard Mandatory DoD Notice before granting local or remote access to the system via a graphical user logon.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy a...
    Rule Medium Severity
    Show

  • SRG-OS-000028-GPOS-00009

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must be able to lock the graphical user interface (GUI).

    &lt;VulnDiscussion&gt;A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...
    Rule Medium Severity
    Show

  • SRG-OS-000028-GPOS-00009

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must utilize vlock to allow for session locking.

    &lt;VulnDiscussion&gt;A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...
    Rule Low Severity
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  • SRG-OS-000029-GPOS-00010

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must initiate a session lock after a 15-minute period of inactivity for the graphical user interface (GUI).

    &lt;VulnDiscussion&gt;A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinit...
    Rule Medium Severity
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  • SRG-OS-000029-GPOS-00010

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must initiate a session lock after a 15-minute period of inactivity.

    &lt;VulnDiscussion&gt;A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinit...
    Rule Medium Severity
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  • SRG-OS-000031-GPOS-00012

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image in the graphical user interface (GUI).

    &lt;VulnDiscussion&gt;A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the ...
    Rule Low Severity
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  • SRG-OS-000032-GPOS-00013

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must log SSH connection attempts and failures to the server.

    &lt;VulnDiscussion&gt;Remote access services, such as those providing remote access to network devices and information systems, which lack automate...
    Rule Medium Severity
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  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must implement DoD-approved encryption to protect the confidentiality of SSH remote connections.

    &lt;VulnDiscussion&gt;Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...
    Rule Medium Severity
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  • SRG-OS-000066-GPOS-00034

    <GroupDescription></GroupDescription>
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  • The SUSE operating system, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.

    &lt;VulnDiscussion&gt;Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate n...
    Rule Medium Severity
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  • SRG-OS-000074-GPOS-00042

    <GroupDescription></GroupDescription>
    Group
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  • The SUSE operating system must not have the telnet-server package installed.

    &lt;VulnDiscussion&gt;It is detrimental for SUSE operating systems to provide, or install by default, functionality exceeding requirements or missi...
    Rule High Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • SUSE operating systems with a basic input/output system (BIOS) must require authentication upon booting into single-user and maintenance modes.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...
    Rule High Severity
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  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
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  • SUSE operating systems with Unified Extensible Firmware Interface (UEFI) implemented must require authentication upon booting into single-user mode and maintenance.

    &lt;VulnDiscussion&gt;If the system allows a user to boot into single-user or maintenance mode without authentication, any user that invokes single...
    Rule High Severity
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  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
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  • The SUSE operating system 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
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  • SRG-OS-000104-GPOS-00051

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must not have duplicate User IDs (UIDs) for interactive users.

    &lt;VulnDiscussion&gt;To ensure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to preven...
    Rule Medium Severity
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  • SRG-OS-000114-GPOS-00059

    <GroupDescription></GroupDescription>
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  • The SUSE 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-000120-GPOS-00061

    <GroupDescription></GroupDescription>
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  • The SUSE operating system must employ FIPS 140-2 approved cryptographic hashing algorithm for system authentication (login.defs).

    &lt;VulnDiscussion&gt;Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be r...
    Rule Medium Severity
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