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Virtual Private Network (VPN) Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000371

    <GroupDescription></GroupDescription>
    Group
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  • 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
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  • SRG-NET-000375

    <GroupDescription></GroupDescription>
    Group
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  • The IPsec VPN Gateway must use Encapsulating Security Payload (ESP) in tunnel mode for establishing secured paths to transport traffic between the organization's sites or between a gateway and remote end-stations.

    &lt;VulnDiscussion&gt;ESP provides confidentiality, data origin authentication, integrity, and anti-replay services within the IPsec suite of proto...
    Rule Medium Severity
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  • 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
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  • 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
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  • 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
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  • 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

  • SRG-NET-000510

    <GroupDescription></GroupDescription>
    Group
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  • The IPsec VPN Gateway IKE must use NIST FIPS-validated cryptography to implement encryption services for unclassified VPN traffic.

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

  • SRG-NET-000512

    <GroupDescription></GroupDescription>
    Group
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  • The IPsec VPN Gateway must use Internet Key Exchange (IKE) for IPsec VPN Security Associations (SAs).

    &lt;VulnDiscussion&gt;Without IKE, the SPI is manually specified for each security association. IKE peers will negotiate the encryption algorithm a...
    Rule High Severity
    Show

  • SRG-NET-000512

    <GroupDescription></GroupDescription>
    Group
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  • The VPN Gateway must not accept certificates that have been revoked when using PKI for authentication.

    &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 High Severity
    Show

  • SRG-NET-000518

    <GroupDescription></GroupDescription>
    Group
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  • The VPN Client logout function must be configured to terminate the session on/with the VPN Gateway.

    &lt;VulnDiscussion&gt;If a user cannot explicitly end a session, the session may remain open and be exploited by an attacker; this is referred to a...
    Rule Medium Severity
    Show

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