An authoritative name server must be configured to enable DNSSEC Resource Records.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-265982	SRG-APP-000516-DNS-000089	F5BI-DN-300013	SV-265982r1024488_rule	2024-09-09	1

Description
The specification for a digital signature mechanism in the context of the DNS infrastructure is in IETF's DNSSEC standard. In DNSSEC, trust in the public key (for signature verification) of the source is established not by going to a third party or a chain of third parties (as in public key infrastructure [PKI] chaining), but by starting from a trusted zone (such as the root zone) and establishing the chain of trust down to the current source of response through successive verifications of signature of the public key of a child by its parent. The public key of the trusted zone is called the trust anchor. After authenticating the source, the next process DNSSEC calls for is to authenticate the response. DNSSEC mechanisms involve two main processes: sign and serve, and verify signature. Before a DNSSEC-signed zone can be deployed, a name server must be configured to enable DNSSEC processing. Satisfies: SRG-APP-000516-DNS-000089, SRG-APP-000347-DNS-000041, SRG-APP-000348-DNS-000042, SRG-APP-000420-DNS-000053, SRG-APP-000421-DNS-000054, SRG-APP-000158-DNS-000015, SRG-APP-000422-DNS-000055, SRG-APP-000215-DNS-000003, SRG-APP-000423-DNS-000056, SRG-APP-000424-DNS-000057, SRG-APP-000425-DNS-000058, SRG-APP-000426-DNS-000059, SRG-APP-000219-DNS-000030

Description

The specification for a digital signature mechanism in the context of the DNS infrastructure is in IETF's DNSSEC standard. In DNSSEC, trust in the public key (for signature verification) of the source is established not by going to a third party or a chain of third parties (as in public key infrastructure [PKI] chaining), but by starting from a trusted zone (such as the root zone) and establishing the chain of trust down to the current source of response through successive verifications of signature of the public key of a child by its parent. The public key of the trusted zone is called the trust anchor. After authenticating the source, the next process DNSSEC calls for is to authenticate the response. DNSSEC mechanisms involve two main processes: sign and serve, and verify signature. Before a DNSSEC-signed zone can be deployed, a name server must be configured to enable DNSSEC processing. Satisfies: SRG-APP-000516-DNS-000089, SRG-APP-000347-DNS-000041, SRG-APP-000348-DNS-000042, SRG-APP-000420-DNS-000053, SRG-APP-000421-DNS-000054, SRG-APP-000158-DNS-000015, SRG-APP-000422-DNS-000055, SRG-APP-000215-DNS-000003, SRG-APP-000423-DNS-000056, SRG-APP-000424-DNS-000057, SRG-APP-000425-DNS-000058, SRG-APP-000426-DNS-000059, SRG-APP-000219-DNS-000030

ℹ️ Check
DNSSEC Keys: From the BIG-IP GUI: 1. DNS. 2. Zones. 3. DNSSEC Zones. 4. DNSSEC Zone List. 5. Click the name of the zone. 6. Verify a key is selected for both "Zone Signing Key" and "Key Signing Key". TSIG Key: 1. DNS. 2. Delivery. 3. Nameservers. 4. Nameserver List. 5. Click the name of the Nameserver. 6. Verify a value is selected for "TSIG Key". If the BIG-IP DNS implementation is not configured to enable DNSSEC Resource Records, this is a finding.

ℹ️ Check

DNSSEC Keys: From the BIG-IP GUI: 1. DNS. 2. Zones. 3. DNSSEC Zones. 4. DNSSEC Zone List. 5. Click the name of the zone. 6. Verify a key is selected for both "Zone Signing Key" and "Key Signing Key". TSIG Key: 1. DNS. 2. Delivery. 3. Nameservers. 4. Nameserver List. 5. Click the name of the Nameserver. 6. Verify a value is selected for "TSIG Key". If the BIG-IP DNS implementation is not configured to enable DNSSEC Resource Records, this is a finding.

✔️ Fix
DNSSEC Keys: From the BIG-IP GUI: 1. DNS. 2. Zones. 3. DNSSEC Zones. 4. DNSSEC Zone List. 5. Click the name of the zone. 6. Move a key for both "Zone Signing Key" and "Key Signing Key" into the "Active" column. 7. Click "Update". Note: To create a Zone Signing Key and/or Key Signing Key, go to DNS >> Delivery >> Keys >> DNSSEC Key List. TSIG Key: 1. DNS. 2. Delivery. 3. Nameservers. 4. Nameserver List. 5. Click on the name of the Nameserver. 6. Select a value from the drop-down for "TSIG Key". 7. Click "Update". Note: To create a TSIG Key, go to DNS >> Delivery >> Keys >> TSIG Key List.

✔️ Fix

DNSSEC Keys: From the BIG-IP GUI: 1. DNS. 2. Zones. 3. DNSSEC Zones. 4. DNSSEC Zone List. 5. Click the name of the zone. 6. Move a key for both "Zone Signing Key" and "Key Signing Key" into the "Active" column. 7. Click "Update". Note: To create a Zone Signing Key and/or Key Signing Key, go to DNS >> Delivery >> Keys >> DNSSEC Key List. TSIG Key: 1. DNS. 2. Delivery. 3. Nameservers. 4. Nameserver List. 5. Click on the name of the Nameserver. 6. Select a value from the drop-down for "TSIG Key". 7. Click "Update". Note: To create a TSIG Key, go to DNS >> Delivery >> Keys >> TSIG Key List.