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I - Mission Critical Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000395-DNS-000050

    <GroupDescription></GroupDescription>
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  • The DNS server implementation must authenticate another DNS server before establishing a remote and/or network connection using bidirectional authentication that is cryptographically based.

    &lt;VulnDiscussion&gt;Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. B...
    Rule Medium Severity
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  • SRG-APP-000420-DNS-000053

    <GroupDescription></GroupDescription>
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  • A DNS server implementation must provide data origin artifacts for internal name/address resolution queries.

    &lt;VulnDiscussion&gt;The major threat associated with DNS forged responses or failures is the integrity of the DNS data returned in the response. ...
    Rule Medium Severity
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  • SRG-APP-000421-DNS-000054

    <GroupDescription></GroupDescription>
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  • A DNS server implementation must provide data integrity protection artifacts for internal name/address resolution queries.

    &lt;VulnDiscussion&gt;The major threat associated with DNS forged responses or failures is the integrity of the DNS data returned in the response. ...
    Rule Medium Severity
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  • SRG-APP-000422-DNS-000055

    <GroupDescription></GroupDescription>
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  • A DNS server implementation must provide additional integrity artifacts along with the authoritative name resolution data the system returns in response to external name/address resolution queries.

    &lt;VulnDiscussion&gt;The major threat associated with DNS forged responses or failures is the integrity of the DNS data returned in the response. ...
    Rule Medium Severity
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  • SRG-APP-000423-DNS-000056

    <GroupDescription></GroupDescription>
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  • A DNS server implementation must request data origin authentication verification on the name/address resolution responses the system receives from authoritative sources.

    &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-000424-DNS-000057

    <GroupDescription></GroupDescription>
    Group
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  • A DNS server implementation must request data integrity verification on the name/address resolution responses the system receives from authoritative sources.

    &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
    Show

  • SRG-APP-000425-DNS-000058

    <GroupDescription></GroupDescription>
    Group
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  • A DNS server implementation must perform data integrity verification on the name/address resolution responses the system receives from authoritative sources.

    &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
    Show

  • SRG-APP-000426-DNS-000059

    <GroupDescription></GroupDescription>
    Group
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  • A DNS server implementation must perform data origin verification authentication on the name/address resolution responses the system receives from authoritative sources.

    &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-000439-DNS-000063

    <GroupDescription></GroupDescription>
    Group
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  • The Infoblox system must be configured to must protect the integrity of transmitted information.

    &lt;VulnDiscussion&gt;Without protection of the transmitted information, confidentiality and integrity may be compromised since unprotected communi...
    Rule Medium Severity
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  • SRG-APP-000440-DNS-000065

    <GroupDescription></GroupDescription>
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  • The Infoblox system must implement cryptographic mechanisms to detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS).

    &lt;VulnDiscussion&gt;Encrypting information for transmission protects information from unauthorized disclosure and modification. Cryptographic mec...
    Rule Medium Severity
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  • SRG-APP-000441-DNS-000066

    <GroupDescription></GroupDescription>
    Group
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  • The DNS server implementation must maintain the integrity of information during preparation for transmission.

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

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

    &lt;VulnDiscussion&gt;Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, duri...
    Rule Medium Severity
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  • SRG-APP-000451-DNS-000069

    <GroupDescription></GroupDescription>
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  • The DNS server implementation must follow procedures to re-role a secondary name server as the master name server should the master name server permanently lose 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-000474-DNS-000073

    <GroupDescription></GroupDescription>
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  • The DNS server implementation must log the event and notify the system administrator when anomalies in the operation of the signed zone transfers are discovered.

    &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-000514-DNS-000075

    <GroupDescription></GroupDescription>
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  • The 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 utilizing encryption to protect data. The applicatio...
    Rule High Severity
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  • SRG-APP-000516-DNS-000078

    <GroupDescription></GroupDescription>
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  • The Zone Signing Key (ZSK) rollover interval must be configured to less than two months.

    &lt;VulnDiscussion&gt;An attacker that has compromised a ZSK can use that key only during the KSK's signature validity interval. An attacker that h...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000084

    <GroupDescription></GroupDescription>
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  • NSEC3 must be used for all internal DNS zones.

    &lt;VulnDiscussion&gt;To ensure that RRs associated with a query are really missing in a zone file and have not been removed in transit, the DNSSEC...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000085

    <GroupDescription></GroupDescription>
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  • The Infoblox system must ensure each NS record in a zone file points to an active name server authoritative for the domain specified in that record.

    &lt;VulnDiscussion&gt;Poorly constructed NS records pose a security risk because they create conditions under which an adversary might be able to p...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000087

    <GroupDescription></GroupDescription>
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  • All authoritative name servers for a zone must be located on different network segments.

    &lt;VulnDiscussion&gt;Most enterprises have an authoritative primary server and a host of authoritative secondary name servers. It is essential tha...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000089

    <GroupDescription></GroupDescription>
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  • An authoritative name server must be configured to enable DNSSEC Resource Records.

    &lt;VulnDiscussion&gt;The specification for a digital signature mechanism in the context of the DNS infrastructure is in IETF's DNSSEC standard. In...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000090

    <GroupDescription></GroupDescription>
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  • Digital signature algorithm used for DNSSEC-enabled zones must be FIPS-compatible.

    &lt;VulnDiscussion&gt;The choice of digital signature algorithm will be based on recommended algorithms in well-known standards. NIST's Digital Sig...
    Rule High Severity
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  • SRG-APP-000516-DNS-000091

    <GroupDescription></GroupDescription>
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  • For zones split between the external and internal sides of a network, the RRs for the external hosts must be separate from the RRs for the internal hosts.

    &lt;VulnDiscussion&gt;Authoritative name servers for an enterprise may be configured to receive requests from both external and internal clients. ...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000092

    <GroupDescription></GroupDescription>
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  • In a split DNS configuration, where separate name servers are used between the external and internal networks, the external name server must be configured to not be reachable from inside resolvers.

    &lt;VulnDiscussion&gt;Instead of having the same set of authoritative name servers serve different types of clients, an enterprise could have two d...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000093

    <GroupDescription></GroupDescription>
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  • In a split DNS configuration, where separate name servers are used between the external and internal networks, the internal name server must be configured to not be reachable from outside resolvers.

    &lt;VulnDiscussion&gt;Instead of having the same set of authoritative name servers serve different types of clients, an enterprise could have two d...
    Rule Medium Severity
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  • SRG-APP-000516-DNS-000099

    <GroupDescription></GroupDescription>
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  • The DNS implementation must enforce a Discretionary Access Control (DAC) policy that limits propagation of access rights.

    &lt;VulnDiscussion&gt;Discretionary Access Control (DAC) is based on the premise that individual users are "owners" of objects and therefore have d...
    Rule Medium Severity
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Node 2

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