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II - Mission Support Public

Rules and Groups employed by this XCCDF Profile

  • SRG-NET-000041

    <GroupDescription></GroupDescription>
    Group
  • The Remote Access VPN Gateway and/or client must display the Standard Mandatory DoD Notice and Consent Banner before granting remote access to the network.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the network ensures privacy and security no...
    Rule Medium Severity
  • SRG-NET-000042

    <GroupDescription></GroupDescription>
    Group
  • The Remote Access VPN Gateway and/or client must enforce a policy to retain the Standard Mandatory DoD Notice and Consent Banner on the screen until users acknowledge the usage conditions and take explicit actions to log on for further access.

    &lt;VulnDiscussion&gt;The banner must be acknowledged by the user prior to allowing the user access to the network. This provides assurance that th...
    Rule Medium Severity
  • SRG-NET-000043

    <GroupDescription></GroupDescription>
    Group
  • The publicly accessible VPN Gateway must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the publicly accessible VPN gateway ensures...
    Rule Medium Severity
  • SRG-NET-000053

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must limit the number of concurrent sessions for user accounts to 1 or to an organization-defined number.

    &lt;VulnDiscussion&gt;VPN gateway management includes the ability to control the number of users and user sessions that utilize a VPN gateway. Limi...
    Rule Medium Severity
  • SRG-NET-000062

    <GroupDescription></GroupDescription>
    Group
  • The TLS VPN Gateway must use TLS 1.2, at a minimum, to protect the confidentiality of sensitive data during transmission for remote access connections.

    &lt;VulnDiscussion&gt;Using older unauthorized versions or incorrectly configuring protocol negotiation makes the gateway vulnerable to known and u...
    Rule High Severity
  • SRG-NET-000063

    <GroupDescription></GroupDescription>
    Group
  • The remote access VPN Gateway must use a digital signature generated using FIPS-validated algorithms and an approved hash function to protect the integrity of TLS remote access sessions.

    &lt;VulnDiscussion&gt;Without integrity protection, unauthorized changes may be made to the log files and reliable forensic analysis and discovery ...
    Rule Medium Severity
  • SRG-NET-000063

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must be configured to use IPsec with SHA-2 at 384 bits or greater for hashing to protect the integrity of remote access sessions.

    &lt;VulnDiscussion&gt;Without strong cryptographic integrity protections, information can be altered by unauthorized users without detection. SHA-...
    Rule Medium Severity
  • SRG-NET-000074

    <GroupDescription></GroupDescription>
    Group
  • The IPSec VPN must be configured to use a Diffie-Hellman (DH) Group of 16 or greater for Internet Key Exchange (IKE) Phase 1.

    &lt;VulnDiscussion&gt;Use of an approved DH algorithm ensures the IKE (Phase 1) proposal uses FIPS-validated key management techniques and processe...
    Rule High Severity
  • SRG-NET-000075

    <GroupDescription></GroupDescription>
    Group
  • If the site-to-site VPN implementation uses L2TP, L2TPv3 sessions must be authenticated prior to transporting traffic.

    &lt;VulnDiscussion&gt;L2TPv3 sessions can be used to transport layer-2 protocols across an IP backbone. These protocols were intended for link-loca...
    Rule Medium Severity
  • SRG-NET-000077

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must generate log records containing information to establish what type of events occurred.

    &lt;VulnDiscussion&gt;Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events l...
    Rule Low Severity

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