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II - Mission Support Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000480-GPOS-00229

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must not allow a noncertificate trusted host SSH logon to the system.

    &lt;VulnDiscussion&gt;SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts.&lt;/VulnDiscuss...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00229

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must not allow users to override SSH environment variables.

    &lt;VulnDiscussion&gt;SSH environment options potentially allow users to bypass access restriction in some configurations.&lt;/VulnDiscussion&gt;&l...
    Rule Medium Severity
  • SRG-OS-000423-GPOS-00187

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must force a frequent session key renegotiation for SSH connections to the server.

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...
    Rule Medium Severity
  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 must be configured so that all network connections associated with SSH traffic terminate after 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-000126-GPOS-00066

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 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
  • RHEL 9 SSH server configuration file must be group-owned by root.

    &lt;VulnDiscussion&gt;Service configuration files enable or disable features of their respective services, which if configured incorrectly, can lea...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 SSH server configuration file must be owned by root.

    &lt;VulnDiscussion&gt;Service configuration files enable or disable features of their respective services, which if configured incorrectly, can lea...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 SSH server configuration file must have mode 0600 or less permissive.

    &lt;VulnDiscussion&gt;Service configuration files enable or disable features of their respective services that if configured incorrectly can lead t...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 SSH private host key files must have mode 0640 or less permissive.

    &lt;VulnDiscussion&gt;If an unauthorized user obtains the private SSH host key file, the host could be impersonated.&lt;/VulnDiscussion&gt;&lt;Fals...
    Rule Medium Severity
  • SRG-OS-000480-GPOS-00227

    <GroupDescription></GroupDescription>
    Group
  • RHEL 9 SSH public host key files must have mode 0644 or less permissive.

    &lt;VulnDiscussion&gt;If a public host key file is modified by an unauthorized user, the SSH service may be compromised.&lt;/VulnDiscussion&gt;&lt;...
    Rule Medium Severity

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