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XCCDF
Microsoft Windows 2012 Server Domain Name System Security Technical Implementation Guide
SRG-APP-000001-DNS-000115
SRG-APP-000001-DNS-000115
An XCCDF Group - A logical subset of the XCCDF Benchmark
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SRG-APP-000001-DNS-000115
1 Rule
<GroupDescription></GroupDescription>
The Windows 2012 DNS Server must restrict incoming dynamic update requests to known clients.
Medium Severity
<VulnDiscussion>Limiting the number of concurrent sessions reduces the risk of Denial of Service (DoS) on any system. A DNS server's function requires it to be able to handle multiple sessions at a time so limiting concurrent sessions could potentially cause an impact to availability. Primary name servers need to be configured to limit the actual hosts from which they will accept dynamic updates and from which they will accept zone transfer requests, and all name servers should be configured to limit the hosts from/to which they receive/send zone transfers. Restricting sessions to known hosts will mitigate the DoS vulnerability.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>