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Virtual Private Network (VPN) Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • 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
  • SRG-NET-000078

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must generate log records containing information to establish when (date and time) the events occurred.

    &lt;VulnDiscussion&gt;Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to...
    Rule Low Severity
  • SRG-NET-000079

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must generate log records containing information that establishes the identity of any individual or process associated with the event.

    &lt;VulnDiscussion&gt;Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associ...
    Rule Medium Severity
  • SRG-NET-000088

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

    &lt;VulnDiscussion&gt;Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up t...
    Rule Medium Severity
  • SRG-NET-000089

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

    &lt;VulnDiscussion&gt;Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up...
    Rule Low Severity
  • SRG-NET-000091

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must produce log records containing information to establish the outcome of the events.

    &lt;VulnDiscussion&gt;Without information about the outcome of events, security personnel cannot make an accurate assessment as to whether an attac...
    Rule Medium Severity
  • SRG-NET-000098

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must accept the Common Access Card (CAC) credential.

    &lt;VulnDiscussion&gt;The use of Personal Identity Verification (PIV) credentials facilitates standardization and reduces the risk of unauthorized...
    Rule Medium Severity
  • SRG-NET-000342

    <GroupDescription></GroupDescription>
    Group
  • The VPN Gateway must protect log information from unauthorized read access if all or some of this data is stored locally.

    &lt;VulnDiscussion&gt;Auditing and logging are key components of any security architecture. Logging the actions of specific events provides a means...
    Rule Low Severity

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