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III - Administrative Sensitive

Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000424

    <GroupDescription></GroupDescription>
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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
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  • SRG-APP-000425

    <GroupDescription></GroupDescription>
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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

    <GroupDescription></GroupDescription>
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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-000427

    <GroupDescription></GroupDescription>
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  • If the DNS server is using SIG(0), the DNS server implementation must only allow the use of DoD PKI-established certificate authorities for verification of the establishment of protected transactions.

    &lt;VulnDiscussion&gt;Untrusted Certificate Authorities (CA) can issue certificates, but they may be issued by organizations or individuals that se...
    Rule Medium Severity
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  • SRG-APP-000428

    <GroupDescription></GroupDescription>
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  • The DNS server implementation must utilize cryptographic mechanisms to prevent unauthorized modification of DNS zone data.

    &lt;VulnDiscussion&gt;Applications handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized ...
    Rule Medium Severity
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  • SRG-APP-000429

    <GroupDescription></GroupDescription>
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  • The DNS server implementation must utilize cryptographic mechanisms to prevent unauthorized disclosure of non-DNS data stored on the DNS server.

    &lt;VulnDiscussion&gt;Applications handling data requiring "data-at-rest" protections must employ cryptographic mechanisms to prevent unauthorized ...
    Rule Medium Severity
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  • SRG-APP-000439

    <GroupDescription></GroupDescription>
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  • The DNS server implementation 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 High Severity
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  • SRG-APP-000440

    <GroupDescription></GroupDescription>
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  • The DNS server implementation 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

    <GroupDescription></GroupDescription>
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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

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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-000447

    <GroupDescription></GroupDescription>
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  • The DNS server implementation must behave in a predictable and documented manner that reflects organizational and system objectives when invalid inputs are received.

    &lt;VulnDiscussion&gt;A common vulnerability of applications is unpredictable behavior when invalid inputs are received. This requirement guards ag...
    Rule Medium Severity
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  • SRG-APP-000451

    <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-000473

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  • The DNS server implementation must perform verification of the correct operation of security functions: upon system start-up 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

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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-000504

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  • The DNS implementation must generate audit records for the success and failure of start and stop of the name server service or daemon.

    &lt;VulnDiscussion&gt;Auditing and logging are key components of any security architecture. It is essential for security personnel to know what is ...
    Rule Medium Severity
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  • SRG-APP-000504

    <GroupDescription></GroupDescription>
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  • The DNS implementation must generate audit records for the success and failure of all name server events.

    &lt;VulnDiscussion&gt;Auditing and logging are key components of any security architecture. It is essential for security personnel to know what is ...
    Rule Medium Severity
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  • SRG-APP-000514

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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 Medium Severity
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  • SRG-APP-000516

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  • The salt value for zones signed using NSEC3 RRs must be changed every time the zone is completely re-signed.

    &lt;VulnDiscussion&gt;NSEC3 RRs contain other options than just the (hashed) next name and RRType bitmap. There are also 2 values associated with t...
    Rule Medium Severity
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  • SRG-APP-000516

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  • The validity period for the RRSIGs covering a zones DNSKEY RRSet must be no less than two days and no more than one week.

    &lt;VulnDiscussion&gt;The best way for a zone administrator to minimize the impact of a key compromise is by limiting the validity period of RRSIGs...
    Rule Medium Severity
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  • SRG-APP-000516

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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

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  • The DNS implementation 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

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  • The two files generated by the dnssec-keygen program must be made accessible only to the server administrator account, or deleted, after they have been copied to the key file in the name server.

    &lt;VulnDiscussion&gt;To enable zone transfer (requests and responses) through authenticated messages, it is necessary to generate a key for every ...
    Rule Medium Severity
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  • SRG-APP-000516

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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

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  • All authoritative name servers for a zone must have the same version of zone information.

    &lt;VulnDiscussion&gt;The only protection approach for content control of DNS zone file is the use of a zone file integrity checker. The effectiven...
    Rule Medium Severity
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  • SRG-APP-000516

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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. I...
    Rule Medium Severity
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Node 2

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