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Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000279-GPOS-00109

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must automatically terminate a user session after inactivity timeouts have expired.

    &lt;VulnDiscussion&gt;Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...
    Rule Medium Severity
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  • SRG-OS-000373-GPOS-00156

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must require users to reauthenticate for privilege escalation or when changing roles.

    &lt;VulnDiscussion&gt;Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When oper...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00228

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system default filesystem permissions must be defined in such a way that all authenticated users can read and modify only their own files.

    &lt;VulnDiscussion&gt;Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary acce...
    Rule Medium Severity
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  • SRG-OS-000105-GPOS-00052

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must implement smart card logins for multifactor authentication for local and network access to privileged and non-privileged accounts.

    &lt;VulnDiscussion&gt;Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifacto...
    Rule Medium Severity
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  • SRG-OS-000125-GPOS-00065

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must use strong authenticators in establishing nonlocal maintenance and diagnostic sessions.

    &lt;VulnDiscussion&gt;Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network,...
    Rule Medium Severity
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