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Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000096-GPOS-00050

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.

    &lt;VulnDiscussion&gt;In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e....
    Rule Medium Severity
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  • SRG-OS-000109-GPOS-00056

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must prevent direct login into the root account.

    &lt;VulnDiscussion&gt;To assure individual accountability and prevent unauthorized access, organizational users must be individually identified and...
    Rule Medium Severity
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  • SRG-OS-000118-GPOS-00060

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.

    &lt;VulnDiscussion&gt;Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potenti...
    Rule Medium Severity
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  • SRG-OS-000123-GPOS-00064

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must automatically expire temporary accounts within 72 hours.

    &lt;VulnDiscussion&gt;Temporary accounts are privileged or nonprivileged accounts that are established during pressing circumstances, such as new s...
    Rule Low Severity
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  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
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  • The Ubuntu operating system must set a sticky bit on all public directories to prevent unauthorized and unintended information transferred via shared system resources.

    &lt;VulnDiscussion&gt;Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of infor...
    Rule Medium Severity
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