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XCCDF
Microsoft Windows 2012 Server Domain Name System Security Technical Implementation Guide
SRG-APP-000516-DNS-000085
The Windows 2012 DNS Servers zone files must have NS records that point to active name servers authoritative for the domain specified in that record.
The Windows 2012 DNS Servers zone files must have NS records that point to active name servers authoritative for the domain specified in that record.
An XCCDF Rule
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The Windows 2012 DNS Servers zone files must have NS records that point to active name servers authoritative for the domain specified in that record.
High Severity
<VulnDiscussion>Poorly constructed NS records pose a security risk because they create conditions under which an adversary might be able to provide the missing authoritative name services that are improperly specified in the zone file. The adversary could issue bogus responses to queries that clients would accept because they learned of the adversary's name server from a valid authoritative name server, one that need not be compromised for this attack to be successful. The list of slave servers must remain current within 72 hours of any changes to the zone architecture that would affect the list of slaves. If a slave server has been retired or is not operational but remains on the list, then an adversary might have a greater opportunity to impersonate that slave without detection, rather than if the slave was actually online. For example, the adversary may be able to spoof the retired slave's IP address without an IP address conflict, which would not be likely to occur if the true slave were active.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>