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BIND 9.x Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • The BIND 9.x server implementation must uniquely identify and authenticate the other DNS server before responding to a server-to-server transaction, zone transfer and/or dynamic update request using cryptographically based bidirectional authentication to protect the integrity of the information in transit.

    <VulnDiscussion>Server-to-server (zone transfer) transactions are provided by TSIG, which enforces mutual server authentication using a key t...
    Rule High Severity
    Show

  • SRG-APP-000158-DNS-000015

    <GroupDescription></GroupDescription>
    Group
    Show

  • The BIND 9.x server implementation must utilize separate TSIG key-pairs when securing server-to-server transactions.

    &lt;VulnDiscussion&gt;Server-to-server (zone transfer) transactions are provided by TSIG, which enforces mutual server authentication using a key t...
    Rule Medium Severity
    Show

  • SRG-APP-000176-DNS-000018

    <GroupDescription></GroupDescription>
    Group
    Show

  • The TSIG keys used with the BIND 9.x implementation must be owned by a privileged account.

    &lt;VulnDiscussion&gt;Incorrect ownership of a TSIG key file could allow an adversary to modify the file, thus defeating the security objective.&lt...
    Rule Medium Severity
    Show

  • SRG-APP-000176-DNS-000018

    <GroupDescription></GroupDescription>
    Group
    Show

  • The TSIG keys used with the BIND 9.x implementation must be group owned by a privileged account.

    &lt;VulnDiscussion&gt;Incorrect ownership of a TSIG key file could allow an adversary to modify the file, thus defeating the security objective.&lt...
    Rule Medium Severity
    Show

  • SRG-APP-000176-DNS-000019

    <GroupDescription></GroupDescription>
    Group
    Show

  • The read and write access to a TSIG key file used by a BIND 9.x server must be restricted to only the account that runs the name server software.

    &lt;VulnDiscussion&gt;Weak permissions of a TSIG key file could allow an adversary to modify the file, thus defeating the security objective.&lt;/V...
    Rule Medium Severity
    Show

  • SRG-APP-000516-DNS-000500

    <GroupDescription></GroupDescription>
    Group
    Show

  • The BIND 9.X implementation must not utilize a TSIG or DNSSEC key for more than one year.

    &lt;VulnDiscussion&gt;Cryptographic keys are the backbone of securing DNS information over the wire, maintaining DNS data integrity, and the provid...
    Rule Medium Severity
    Show

  • SRG-APP-000514-DNS-000075

    <GroupDescription></GroupDescription>
    Group
    Show

  • A BIND 9.x server must implement NIST FIPS-validated cryptography for provisioning digital signatures and generating cryptographic hashes.

    &lt;VulnDiscussion&gt;The use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The applic...
    Rule High Severity
    Show

  • The DNSSEC keys used with the BIND 9.x implementation must be owned by a privileged account.

    &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
    Show

  • SRG-APP-000231-DNS-000033

    <GroupDescription></GroupDescription>
    Group
    Show

  • The DNSSEC keys used with the BIND 9.x implementation must be group owned by a privileged account.

    &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
    Show

  • SRG-APP-000231-DNS-000033

    <GroupDescription></GroupDescription>
    Group
    Show

  • Permissions assigned to the DNSSEC keys used with the BIND 9.x implementation must enforce read-only access to the key owner and deny access to all other users.

    &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
    Show

  • SRG-APP-000176-DNS-000094

    <GroupDescription></GroupDescription>
    Group
    Show

  • The BIND 9.x server private key corresponding to the ZSK pair must be the only DNSSEC key kept on a name server that supports dynamic updates.

    &lt;VulnDiscussion&gt;The private key in the ZSK key pair must be protected from unauthorized access. If possible, the private key should be stored...
    Rule High Severity
    Show

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