Title

The Infoblox DNS server must implement cryptographic mechanisms to detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). (Cat II impact)

Discussion

Encrypting information for transmission protects it from unauthorized disclosure and modification. Cryptographic mechanisms implemented to protect information integrity include, for example, cryptographic hash functions that have common application in digital signatures, checksums, and message authentication codes. Confidentiality is not an objective of DNS, but integrity is. DNSSEC digitally signs DNS information to authenticate its source and ensure its integrity.

Check Content

Note: For Infoblox DNS systems on a classified network, this requirement is Not Applicable. 1. Verify that DNSSEC is enabled by navigating to Data Management >> DNS >> Grid DNS properties tab. 2. Toggle Advanced Mode and review the "DNSSEC" tab to verify that DNSSEC is enabled. 3. When complete, click "Cancel" to exit the "Properties" screen. If DNSSEC validation is not enabled, this is a finding.

Fix Text

1. Navigate to Data Management >> DNS >> Grid DNS properties tab. 2. Toggle Advanced Mode and select the "DNSSEC" tab. 3. Enable DNSSEC by selecting the check box. 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-233924r621666_rule

Vulnerability ID: V-233924

Group Title: SRG-APP-000440-DNS-000065

Expert Comments

CCIs tied to check.

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