V-233919

Discussion

The underlying feature in the major threat associated with DNS query/response (i.e., forged response or response failure) is the integrity of DNS data returned in the response. An integral part of integrity verification is to ensure that valid data has originated from the right source. DNSSEC is required for securing the DNS query/response transaction by providing data origin authentication and data integrity verification through signature verification and the chain of trust. DNSSEC is intended for third-party authenticity determination. Attempting to utilize DNSSEC internally was never an intended use case as it would require every consumer to have a third-party validating resolver installed along with a mechanism for periodic trust anchor distribution/update. It is recommended for external zones only.

Check Content

Note: For Infoblox DNS systems on a classified network, this requirement is Not Applicable.  

1. Navigate to Data Management >> DNS >> Grid DNS properties.
2. Toggle Advanced Mode and click on the "DNSSEC" tab. 
3. Verify that both "Enable DNSSEC" and "Enable DNSSEC validation" are enabled. 
4. When complete, click "Cancel" to exit the "Properties" screen.  

If both "Enable DNSSEC" and "Enable DNSSEC validation" are not enabled, this is a finding.