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Virtual Private Network (VPN) Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000342

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

    &lt;VulnDiscussion&gt;DoD has mandated the use of the CAC as the Personal Identity Verification (PIV) credential to support identity management and...
    Rule Medium Severity
    Show

  • SRG-NET-000343

    <GroupDescription></GroupDescription>
    Group
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  • The VPN Gateway must authenticate all network-connected endpoint devices before establishing a connection.

    &lt;VulnDiscussion&gt;Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. ...
    Rule Medium Severity
    Show

  • SRG-NET-000352

    <GroupDescription></GroupDescription>
    Group
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  • The VPN Gateway must use an approved Commercial Solution for Classified (CSfC) when transporting classified traffic across an unclassified network.

    &lt;VulnDiscussion&gt;Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The National Secu...
    Rule Medium Severity
    Show

  • SRG-NET-000369

    <GroupDescription></GroupDescription>
    Group
    Show

  • The VPN Gateway must disable split-tunneling for remote clients VPNs.

    &lt;VulnDiscussion&gt;Split tunneling would in effect allow unauthorized external connections, making the system more vulnerable to attack and to e...
    Rule Medium Severity
    Show

  • SRG-NET-000371

    <GroupDescription></GroupDescription>
    Group
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  • The IPsec VPN Gateway must specify Perfect Forward Secrecy (PFS) during Internet Key Exchange (IKE) negotiation.

    &lt;VulnDiscussion&gt;PFS generates each new encryption key independently from the previous key. Without PFS, compromise of one key will compromise...
    Rule High Severity
    Show

  • SRG-NET-000371

    <GroupDescription></GroupDescription>
    Group
    Show

  • The VPN Gateway and Client must be configured to protect the confidentiality and integrity of transmitted information.

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised as unprotected communicat...
    Rule High Severity
    Show

  • SRG-NET-000400

    <GroupDescription></GroupDescription>
    Group
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  • For accounts using password authentication, the site-to-site VPN Gateway must use SHA-2 or later protocol to protect the integrity of the password authentication process.

    &lt;VulnDiscussion&gt;Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...
    Rule Medium Severity
    Show

  • SRG-NET-000492

    <GroupDescription></GroupDescription>
    Group
    Show

  • The VPN Gateway must generate log records when successful and/or unsuccessful VPN connection attempts occur.

    &lt;VulnDiscussion&gt;Without generating log records that are specific to the security and mission needs of the organization, it would be difficult...
    Rule Medium Severity
    Show

  • SRG-NET-000510

    <GroupDescription></GroupDescription>
    Group
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  • The VPN Gateway must use a FIPS-validated cryptographic module to generate cryptographic hashes.

    &lt;VulnDiscussion&gt;FIPS 140-2 precludes the use of invalidated cryptography for the cryptographic protection of sensitive or valuable data withi...
    Rule Medium Severity
    Show

  • SRG-NET-000510

    <GroupDescription></GroupDescription>
    Group
    Show

  • The VPN Gateway must use a FIPS-validated cryptographic module to implement encryption services for unclassified information requiring confidentiality.

    &lt;VulnDiscussion&gt;FIPS 140-2 precludes the use of invalidated cryptography for the cryptographic protection of sensitive or valuable data withi...
    Rule Medium Severity
    Show

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