The Infoblox DNS service member must protect the integrity of transmitted information.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-233923	SRG-APP-000439-DNS-000063	IDNS-8X-700018	SV-233923r1082737_rule	2025-03-11	1

Description
Without protection of the transmitted information, confidentiality and integrity may be compromised since unprotected communications can be intercepted and either read or altered. Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. Confidentiality is not an objective of DNS, but integrity is. DNSSEC digitally signs DNS information to authenticate its source and ensure its integrity. 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.

Description

Without protection of the transmitted information, confidentiality and integrity may be compromised since unprotected communications can be intercepted and either read or altered. Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. Confidentiality is not an objective of DNS, but integrity is. DNSSEC digitally signs DNS information to authenticate its source and ensure its integrity. 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.

ℹ️ Check
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.

ℹ️ Check

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
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.