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II - Mission Support Public

Rules and Groups employed by this XCCDF Profile

  • SRG-OS-000163-GPOS-00072

    <GroupDescription></GroupDescription>
    Group
  • The Ubuntu operating system must automatically terminate all network connections associated with SSH traffic at the end of the session or after 10 minutes of inactivity.

    &lt;VulnDiscussion&gt;Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...
    Rule Medium Severity
  • SRG-OS-000250-GPOS-00093

    <GroupDescription></GroupDescription>
    Group
  • The Ubuntu operating system must configure the SSH daemon to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms to protect the integrity of nonlocal maintenance and diagnostic communications.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Nonlocal ma...
    Rule Medium Severity
  • SRG-OS-000423-GPOS-00187

    <GroupDescription></GroupDescription>
    Group
  • The Ubuntu operating system must use SSH to protect the confidentiality and integrity of transmitted information unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS).

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...
    Rule High Severity
  • SRG-OS-000480-GPOS-00229

    <GroupDescription></GroupDescription>
    Group
  • The Ubuntu operating system must not allow unattended or automatic login via ssh.

    &lt;VulnDiscussion&gt;Failure to restrict system access to authenticated users negatively impacts Ubuntu operating system security.&lt;/VulnDiscuss...
    Rule High Severity
  • SRG-OS-000066-GPOS-00034

    <GroupDescription></GroupDescription>
    Group
  • The Ubuntu operating system, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.

    &lt;VulnDiscussion&gt;Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate n...
    Rule Medium Severity

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