STIGQter: STIG Summary: Infoblox 8.x DNS Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 09 Jan 2021:

The Infoblox system must require devices to reauthenticate for each zone transfer and dynamic update request connection attempt.

DISA Rule

SV-233898r621666_rule

Vulnerability Number

V-233898

Group Title

SRG-APP-000390-DNS-000048

Rule Version

IDNS-8X-500001

Severity

CAT II

CCI(s)

• CCI-002039 - The organization requires devices to reauthenticate upon organization-defined circumstances or situations requiring reauthentication.

Weight

10

Fix Recommendation

Note that TSIG relies on both key and time synchronization. TSIG will fail if the local clocks on both names are not synchronized.

1. Navigate to Data Management >> DNS >> Zones tab.
2. Select a zone and click "Edit". Click on the "Zone Transfers" tab and click "Override" for the "Allow Zone Transfers to" section.
3. Use the radio button to select "Set of ACEs" and the "Add" drop-down to configure a TSIG key.
4. It is important to verify that both the Infoblox and other DNS server have the identical TSIG configuration.
5. When complete, click "Save & Close" to save the changes and exit the "Properties" screen.
6. Perform a service restart if necessary.
7. Verify zone transfers are operational after configuration of TSIG.

Check Contents

1. Navigate to Data Management >> DNS >> Zones tab.
2. Review each zone by clicking "Edit" and inspecting the "Name Servers" tab.
3. If all entries in the "Type" column are configured as "Grid", this check is Not Applicable.
4. Verify that each zone containing non-Grid name servers is further verified by inspection of the "Zone Transfers" tab and configuration of TSIG Access Control Entry (ACE).
5. When complete, click "Cancel" to exit the "Properties" screen.

If there is a non-Grid system that uses zone transfers but does not have a TSIG key, this is a finding.

Vulnerability Number

V-233898

Documentable

False

Rule Version

IDNS-8X-500001

Severity Override Guidance

1. Navigate to Data Management >> DNS >> Zones tab.
2. Review each zone by clicking "Edit" and inspecting the "Name Servers" tab.
3. If all entries in the "Type" column are configured as "Grid", this check is Not Applicable.
4. Verify that each zone containing non-Grid name servers is further verified by inspection of the "Zone Transfers" tab and configuration of TSIG Access Control Entry (ACE).
5. When complete, click "Cancel" to exit the "Properties" screen.

If there is a non-Grid system that uses zone transfers but does not have a TSIG key, this is a finding.

Check Content Reference

M

Target Key

5251

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