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Assessment Title
Rule Text
The BIND 9.x server implementation must prohibit the forwarding of queries to servers controlled by organizations outside of the U.S. government.
Description
Discussion Text
If remote servers to which DoW DNS servers send queries are controlled by entities outside of the U.S. government, the possibility of a DNS attack is increased.
The Enterprise Recursive Service (ERS) provides the ability to apply enterprisewide policy to all recursive DNS traffic that traverses the NIPRNet-to-Internet boundary. All recursive DNS servers on the NIPRNet must be configured to exclusively forward DNS traffic traversing NIPRNet-to-Internet boundary to the ERS anycast IPs.
Organizations need to carefully configure any forwarding being used by their caching name servers. They should only configure "forwarding of all queries" to servers within the DoW. Systems configured to use domain-based forwarding should not forward queries for mission critical domains to any servers that are not under the control of the U.S. government.
The Enterprise Recursive Service (ERS) provides the ability to apply enterprisewide policy to all recursive DNS traffic that traverses the NIPRNet-to-Internet boundary. All recursive DNS servers on the NIPRNet must be configured to exclusively forward DNS traffic traversing NIPRNet-to-Internet boundary to the ERS anycast IPs.
Organizations need to carefully configure any forwarding being used by their caching name servers. They should only configure "forwarding of all queries" to servers within the DoW. Systems configured to use domain-based forwarding should not forward queries for mission critical domains to any servers that are not under the control of the U.S. government.
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