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Canonical Ubuntu 22.04 LTS Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • Ubuntu 22.04 LTS must be configured so that all network connections associated with SSH traffic are terminated after 10 minutes of becoming unresponsive.

    &lt;VulnDiscussion&gt;Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personn...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • Ubuntu 22.04 LTS must be configured so that remote X connections are disabled, unless to fulfill documented and validated mission requirements.

    &lt;VulnDiscussion&gt;The security risk of using X11 forwarding is that the client's X11 display server may be exposed to attack when the SSH clien...
    Rule High Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • Ubuntu 22.04 LTS SSH daemon must prevent remote hosts from connecting to the proxy display.

    &lt;VulnDiscussion&gt;When X11 forwarding is enabled, there may be additional exposure to the server and client displays if the sshd proxy display ...
    Rule Medium Severity
  • SRG-OS-000033-GPOS-00014

    <GroupDescription></GroupDescription>
    Group
  • SRG-OS-000378-GPOS-00163

    <GroupDescription></GroupDescription>
    Group
  • Ubuntu 22.04 LTS 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 op...
    Rule Medium Severity
  • Ubuntu 22.04 LTS 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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