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Microsoft Windows Server Domain Name System (DNS) Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-APP-000425-DNS-000058

    <GroupDescription></GroupDescription>
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  • The Windows DNS secondary server must validate data integrity verification on the name/address resolution responses received from primary name servers.

    &lt;VulnDiscussion&gt;If data origin authentication and data integrity verification are not performed, the resultant response could be forged, it m...
    Rule Medium Severity
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  • SRG-APP-000426-DNS-000059

    <GroupDescription></GroupDescription>
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  • The Windows DNS secondary server must validate data origin verification authentication on the name/address resolution responses received from primary name servers.

    &lt;VulnDiscussion&gt;If data origin authentication and data integrity verification are not performed, the resultant response could be forged, it m...
    Rule Medium Severity
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  • SRG-APP-000219-DNS-000028

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must protect the authenticity of zone transfers via transaction signing.

    &lt;VulnDiscussion&gt;Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. This...
    Rule Medium Severity
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  • SRG-APP-000219-DNS-000029

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must protect the authenticity of dynamic updates via transaction signing.

    &lt;VulnDiscussion&gt;DNS is a fundamental network service that is prone to various attacks, such as cache poisoning and man-in-the middle attacks....
    Rule High Severity
    Show

  • SRG-APP-000219-DNS-000030

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must protect the authenticity of query responses via DNSSEC.

    &lt;VulnDiscussion&gt;The underlying feature in the major threat associated with DNS query/response (i.e., forged response or response failure) is ...
    Rule Medium Severity
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  • SRG-APP-000427-DNS-000060

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must verify the correct operation of security functions upon system startup and/or restart, upon command by a user with privileged access, and/or every 30 days.

    &lt;VulnDiscussion&gt;Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing t...
    Rule Medium Severity
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  • SRG-APP-000474-DNS-000073

    <GroupDescription></GroupDescription>
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  • In the event of a system failure, the Windows DNS Server must preserve any information necessary to determine cause of failure and any information necessary to return to operations with least disruption to mission processes.

    &lt;VulnDiscussion&gt;Failure to a known state can address safety or security in accordance with the mission/business needs of the organization. Fa...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000105

    <GroupDescription></GroupDescription>
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  • The DNS Name Server software must run with restricted privileges.

    &lt;VulnDiscussion&gt;Failure to provide logical access restrictions associated with changes to application configuration may have significant effe...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000112

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must use an approved DOD PKI certificate authority.

    &lt;VulnDiscussion&gt;Untrusted certificate authorities (CA) can issue certificates, but the certificates may be issued by organizations or individ...
    Rule Medium Severity
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  • SRG-APP-000231-DNS-000033

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must protect secret/private cryptographic keys while at rest.

    &lt;VulnDiscussion&gt;Information at rest refers to the state of information when it is located on a secondary storage device within an organizatio...
    Rule Medium Severity
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  • SRG-APP-000428-DNS-000061

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must only contain zone records that have been validated annually.

    &lt;VulnDiscussion&gt;If zone information has not been validated in more than a year, there is no assurance that it is still valid. If invalid reco...
    Rule Medium Severity
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  • SRG-APP-000246-DNS-000035

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must restrict individuals from using it for launching denial-of-service (DoS) attacks against other information systems.

    &lt;VulnDiscussion&gt;Applications and application developers must take steps to ensure users cannot use an authorized application to launch DoS at...
    Rule Medium Severity
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  • SRG-APP-000247-DNS-000036

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must use DNS Notify to prevent denial of service (DoS) through increase in workload.

    &lt;VulnDiscussion&gt;In the case of application DoS attacks, care must be taken when designing the application to ensure it makes the best use of ...
    Rule Medium Severity
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  • SRG-APP-000439-DNS-000063

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must protect the integrity of transmitted information.

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected commu...
    Rule High Severity
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  • SRG-APP-000441-DNS-000066

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must maintain the integrity of information during preparation for transmission.

    &lt;VulnDiscussion&gt;Information can be unintentionally or maliciously disclosed or modified during preparation for transmission, including, for e...
    Rule Medium Severity
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  • SRG-APP-000442-DNS-000067

    <GroupDescription></GroupDescription>
    Group
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  • The Windows DNS Server must maintain the integrity of information during reception.

    &lt;VulnDiscussion&gt;Information can be unintentionally or maliciously disclosed or modified during preparation for transmission, including, for e...
    Rule Medium Severity
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  • SRG-APP-000514-DNS-000075

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must implement NIST FIPS-validated cryptography for provisioning digital signatures, generating cryptographic hashes, and protecting unclassified information requiring confidentiality.

    &lt;VulnDiscussion&gt;Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The application mu...
    Rule Medium Severity
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  • SRG-APP-000251-DNS-000037

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must be configured to only allow zone information that reflects the environment for which it is authoritative, including IP ranges and IP versions.

    &lt;VulnDiscussion&gt;DNS zone data for which a Windows DNS Server is authoritative should represent the network for which it is responsible. If a ...
    Rule Medium Severity
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  • SRG-APP-000451-DNS-000069

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  • The Windows DNS Server must follow procedures to re-role a secondary name server as the primary name server if the primary name server permanently loses functionality.

    &lt;VulnDiscussion&gt;Failing to an unsecure condition negatively impacts application security and can lead to system compromise. Failure condition...
    Rule Medium Severity
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  • SRG-APP-000333-DNS-000104

    <GroupDescription></GroupDescription>
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  • The DNS Name Server software must be configured to refuse queries for its version information.

    &lt;VulnDiscussion&gt;Each newer version of the name server software, especially the BIND software, generally is devoid of vulnerabilities found in...
    Rule Medium Severity
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  • SRG-APP-000333-DNS-000107

    <GroupDescription></GroupDescription>
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  • The HINFO, RP, TXT, and LOC RR types must not be used in the zone SOA.

    &lt;VulnDiscussion&gt;Several types of resource records (RRs) in the DNS are meant to convey information to humans and applications about the netwo...
    Rule Medium Severity
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  • SRG-APP-000268-DNS-000039

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  • SRG-APP-000001-DNS-000115

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  • The Windows DNS Server must restrict incoming dynamic update requests to known clients.

    &lt;VulnDiscussion&gt;Limiting the number of concurrent sessions reduces the risk of denial of service (DoS) on any system. A DNS server's functio...
    Rule Medium Severity
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  • SRG-APP-000348-DNS-000042

    <GroupDescription></GroupDescription>
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  • The Windows DNS Server must be configured to record who added/modified/deleted DNS zone information.

    &lt;VulnDiscussion&gt;Without a means for identifying the individual that produced the information, the information cannot be relied on. Identifyin...
    Rule Medium Severity
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  • SRG-APP-000350-DNS-000044

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  • The Windows DNS Server must notify the DNS administrator in the event of an error validating another DNS server's identity.

    &lt;VulnDiscussion&gt;Failing to act on validation errors may result in the use of invalid, corrupted, or compromised information. The validation o...
    Rule Medium Severity
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  • SRG-APP-000089-DNS-000004

    <GroupDescription></GroupDescription>
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Node 2

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