Title

An Infoblox DNS server must strongly bind the identity of the DNS server with the DNS information using DNSSEC. (Cat II impact)

Discussion

Weakly bound credentials can be modified without invalidating the credential; therefore, non-repudiation can be violated. This requirement supports audit requirements that provide organizational personnel with the means to identify who produced specific information in the event of an information transfer. Organizations and/or data owners determine and approve the strength of the binding between the information producer and the information based on the security category of the information and relevant risk factors. DNSSEC uses digital signatures to establish the identity of the producer of particular pieces of information.

Check Content

Note: For Infoblox DNS systems on a classified network, this requirement is Not Applicable. Validate that DNSSEC validation is enabled: 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.

Fix Text

1. Navigate to Data Management >> DNS >> Grid DNS properties. 2. Toggle Advanced Mode and click on the "DNSSEC" tab. 3. Enable both "Enable DNSSEC" and "Enable DNSSEC validation". 4. When complete, click "Save & Close" to save the changes and exit the "Properties" screen. 5. Perform a service restart if necessary.

Additional Identifiers

Rule ID: SV-233889r621666_rule

Vulnerability ID: V-233889

Group Title: SRG-APP-000347-DNS-000041

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.