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Canonical Ubuntu 18.04 LTS Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000383-GPOS-00166

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must be configured such that Pluggable Authentication Module (PAM) prohibits the use of cached authentications after one day.

    &lt;VulnDiscussion&gt;If cached authentication information is out-of-date, the validity of the authentication information may be questionable.&lt;/...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00226

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.

    &lt;VulnDiscussion&gt;Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain acc...
    Rule Low Severity
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  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must display the date and time of the last successful account logon upon logon.

    &lt;VulnDiscussion&gt;Configuring the Ubuntu operating system to implement organization-wide security implementation guides and security checklists...
    Rule Low Severity
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  • SRG-OS-000021-GPOS-00005

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must be configured so that three consecutive invalid logon attempts by a user automatically locks the account until released by an administrator.

    &lt;VulnDiscussion&gt;By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...
    Rule Medium Severity
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  • SRG-OS-000024-GPOS-00007

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  • The Ubuntu operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local access to the system via a graphical user logon.

    &lt;VulnDiscussion&gt;The banner must be acknowledged by the user prior to allowing the user access to the operating system. This provides assuranc...
    Rule Medium Severity
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