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Virtual Private Network (VPN) Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000760

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must establish organization-defined alternate communications paths for system operations organizational command and control.

    &lt;VulnDiscussion&gt;An incident, whether adversarial- or nonadversarial-based, can disrupt established communications paths used for system opera...
    Rule Medium Severity
  • SRG-NET-000345

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network.

    &lt;VulnDiscussion&gt;Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer autho...
    Rule Medium Severity
  • SRG-NET-000580

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must configure OCSP to ensure revoked user certificates are prohibited from establishing an allowed session.

    &lt;VulnDiscussion&gt;Situations may arise in which the certificate issued by a Certificate Authority (CA) may need to be revoked before the lifeti...
    Rule Medium Severity
  • SRG-NET-000580

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must configure OCSP to ensure revoked machine certificates are prohibited from establishing an allowed session.

    &lt;VulnDiscussion&gt;Situations may arise in which the certificate issued by a Certificate Authority (CA) may need to be revoked before the lifeti...
    Rule Medium Severity
  • SRG-NET-000355

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway providing authentication intermediary services must only accept end entity certificates (user or machine) issued by DOD PKI or DOD-approved PKI Certification Authorities (CAs) for the establishment of VPN sessions.

    &lt;VulnDiscussion&gt;Untrusted Certificate Authorities (CAs) can issue certificates, but they may be issued by organizations or individuals that s...
    Rule Medium Severity
  • SRG-NET-000019

    <GroupDescription></GroupDescription>
    Group
  • The TLS VPN must be configured to limit authenticated client sessions to initial session source IP.

    &lt;VulnDiscussion&gt;Limiting authenticated client sessions to the initial session source IP for TLS VPNs is a safeguard against session hijacking...
    Rule Medium Severity
  • SRG-NET-000230

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must use Always On VPN connections for remote computing.

    &lt;VulnDiscussion&gt;Allowing remote users to manually toggle a VPN connection can create critical security risks. With Always On VPN, if a secure...
    Rule Medium Severity

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