🧠 Azure Virtual Machine allows public access to NetBIOS ports - prod.logic.yaml 🟢

• Contextual name: 🧠 prod.logic.yaml 🟢
• ID: /ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml
• Located in: 📝 Azure Virtual Machine allows public access to NetBIOS ports 🟢

Flags

• 🟢 Logic test success
• 🟢 Logic with extracts
• 🟢 Logic with test data

Input Type

	Type	API Name	Extracts	Extract Files	Logic Files
🔒	📕 Azure Virtual Machine	CA10__CaAzureVirtualMachine__c	10	2	22

Uses

• 🔌 Azure Network Security Group Rule - object.extracts.yaml
• 🧪 test-data.json

Test Results 🟢

Generated at: 2025-05-10T12:03:54.227828163Z Open

Result	Id	Condition Index	Condition Text	Runtime Error
🟢	test-0	✔️ 99	✔️ isDisappeared(CA10__disappearanceTime__c)	✔️ null
🟢	test-1	✔️ 200	✔️ otherwise	✔️ null
🟢	test-2	✔️ 200	✔️ otherwise	✔️ null
🟢	test-4	✔️ 200	✔️ otherwise	✔️ null
🟢	test-5	✔️ 199	✔️ CA10__Azure_Network_Interfaces__r.has(INCOMPLIANT)	✔️ null
🟢	test-6	✔️ 199	✔️ CA10__Azure_Network_Interfaces__r.has(INCOMPLIANT)	✔️ null
🟢	test-7	✔️ 200	✔️ otherwise	✔️ null

Generation

	File	MD5
Open	/ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/policy.yaml	85B1A9A1891E5089DC6273AE28E17F50
Open	/ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml	CF497A9ACFA757F7C40305D5BAECDAFE
Open	/types/CA10__CaAzureNetworkSecurityGroupRule__c/object.extracts.yaml	A60C817EFBC8F066D6D082898E8597BC
Open	/ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/test-data.json	0DAB54411414F43C99E2DF8FC7EAC994

Generate FULL script

java -jar repo-manager.jar policies generate FULL /ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml

Generate DEBUG script

java -jar repo-manager.jar policies generate DEBUG /ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml

Generate CAPTURE_TEST_DATA script

java -jar repo-manager.jar policies generate CAPTURE_TEST_DATA /ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml

Generate TESTS script

java -jar repo-manager.jar policies generate TESTS /ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml

Execute tests

java -jar repo-manager.jar policies test /ce/ca/azure/virtual-machine/allows-unrestricted-netbios-traffic/prod.logic.yaml

Content

Open File

---
inputType: "CA10__CaAzureVirtualMachine__c"
testData:
  - file: test-data.json
conditions:
  - status: "INCOMPLIANT"
    currentStateMessage: "The Virtual Machine has a Network Interface with a NSG that allows NetBIOS access from the Internet."
    remediationMessage: "Restrict inbound NetBIOS access from the Internet."
    check:
      RELATED_LIST_HAS:
        status: "INCOMPLIANT"
        relationshipName: "CA10__Azure_Network_Interfaces__r"
otherwise:
  status: "COMPLIANT"
  currentStateMessage: "The Virtual Machine doesn't allow NetBIOS access from the Internet." 
relatedLists:
  - relationshipName: "CA10__Azure_Network_Interfaces__r"
    importExtracts:
      - file: "/types/CA10__CaAzureNetworkSecurityGroupRule__c/object.extracts.yaml"
    conditions:
      - status: "INCOMPLIANT"
        currentStateMessage: "Network Interface with publicly accessible Network Security Group"
        check:
          RELATED_LIST_HAS:
            status: "INCOMPLIANT"
            relationshipName:  "CA10__networkSecurityGroup__r.CA10__Azure_Network_Security_Group_Rules__r"
    otherwise:
      status: "COMPLIANT"
      currentStateMessage: "Network Interface is not publicly accessible"
    relatedLists:
      - relationshipName: "CA10__networkSecurityGroup__r.CA10__Azure_Network_Security_Group_Rules__r"
        importExtracts:
          - file: "/types/CA10__CaAzureNetworkSecurityGroupRule__c/object.extracts.yaml"
        conditions:
# sort public group rules
          - status: "INAPPLICABLE"
            currentStateMessage: "NSG Outbound Rule."
            check:
              NOT_EQUAL:
                left:
                  EXTRACT: "CA10__direction__c"
                right:
                  TEXT: "Inbound"
          - status: "INAPPLICABLE"
            currentStateMessage: "NSG Deny Rule."
            check:
              NOT_EQUAL:
                left:
                  EXTRACT: "CA10__access__c"
                right:
                  TEXT: "Allow"
          - status: "INAPPLICABLE"
            currentStateMessage: "NSG Rule with the port other than TCP, UDP, or Any."
            check:
              NOT:
                arg:
                  OR:
                    args:
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__protocol__c"
                          right:
                            TEXT: "Tcp"
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__protocol__c"
                          right:
                            TEXT: "Udp"
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__protocol__c"
                          right:
                            TEXT: "*"
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__protocol__c"
                          right:
                            TEXT: "null"
          - status: "INAPPLICABLE"
            currentStateMessage: "NSG Rule source is not any address."
            check:
              NOT:
                arg:
                  OR:
                    args:
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__sourceAddressPrefix__c"
                          right:
                            TEXT: "Internet"
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__sourceAddressPrefix__c"
                          right:
                            TEXT: "*"
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__sourceAddressPrefix__c"
                          right:
                            TEXT: "0.0.0.0"
                      - IS_EQUAL:
                          left:
                            EXTRACT: "CA10__sourceAddressPrefix__c"
                          right:
                            TEXT: "Any"
                      - CONTAINS:
                          arg:
                            EXTRACT: "CA10__sourceAddressPrefix__c"
                          substring:
                            TEXT: "/0"
          - status: "INCOMPLIANT"
            currentStateMessage: "NSG Rule with NetBIOS ports with public access from the Internet."
            remediationMessage: "Restrict access to the NetBIOS ports"
            check:
                # PORT 137, 138, 139
              OR:
                args:
                  - IS_EQUAL:
                      left:
                        EXTRACT: "CA10__destinationPortRange__c"
                      right:
                          TEXT: "137"
                  - IS_EQUAL:
                      left:
                        EXTRACT: "CA10__destinationPortRange__c"
                      right:
                          TEXT: "138"
                  - IS_EQUAL:
                      left:
                        EXTRACT: "CA10__destinationPortRange__c"
                      right:
                          TEXT: "139"                                                    
                  - AND:
                      args:
                        - LESS_THAN_EQUAL:
                            left:
                              EXTRACT: "CA10__destinationPortFrom__c"
                            right:
                              NUMBER: 137.0
                        - GREATER_THAN_EQUAL:
                              left:
                                EXTRACT: "CA10__destinationPortTo__c"
                              right:
                                NUMBER: 139.0
        otherwise:
          status: "COMPLIANT"
          currentStateMessage: "NSG rule without public access on NetBIOS ports"