WDNS-CM-000027 - AAAA addresses must not be configured in a zone for hosts that are not IPv6-aware.

Information

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. With this in mind, a denial of service could easily be implemented for an application that is not IPv6-aware. 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 records into the same domain can lead to application problems that are beyond the scope of the DNS administrator.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Remove any IPv6 records for hosts which are not IPv6-aware.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_2012_Server_DNS_V2R7_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-215596r961863_rule, STIG-ID|WDNS-CM-000027, STIG-Legacy|SV-73055, STIG-Legacy|V-58625, Vuln-ID|V-215596

Plugin: Windows

Control ID: 009bb09ef545b767bfa595480c3265dd09e1201cd478931b7890730d6c1613fd