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XCCDF
Microsoft Windows Server Domain Name System (DNS) Security Technical Implementation Guide
SRG-APP-000516-DNS-000500
AAAA addresses must not be configured in a zone for hosts that are not dual stack.
AAAA addresses must not be configured in a zone for hosts that are not dual stack.
An XCCDF Rule
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AAAA addresses must not be configured in a zone for hosts that are not dual stack.
Medium Severity
<VulnDiscussion>DNS is only responsible for resolving a domain name to an IP address. Applications and operating systems are responsible for processing the IPv6 or IPv4 record that may be returned. A denial of service could easily be implemented for an application that is not IPv6 if the user is not running dual stack or any other systems utilizing IPv6. When the application receives an IP address in hexadecimal, it is up to the application/operating system to decide how to handle the response. Combining both IPv6 and IPv4 in a dual stack records into the same domain can lead to application problems that are beyond the scope of the DNS administrator.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>