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Event Dossier: Microsoft Azure Generic Event Hub Cloud Activity

About this Repo

This repository has been made available as a supplemental resource for the AWS Blogpost - Get custom data into Amazon Security Lake through ingesting Azure activity logs.

An Azure Event Hub Activity Log Event

OCSF Version: 1.0.0-rc.2

  • class_name: API Activity
  • class_uid: 3005
  • category_name: Audit Activity
  • category_uid: 3
  • cloud.provider: Microsoft
  • metadata.product.name: Azure Event Hub Activity
  • metadata.product.vendor_name: Microsoft
  • metadata.profiles: [cloud]

Mapping:

  • This does not reflect any transformations or evaluations of the data. Some data evaluation and transformation will be necessary for a correct representation in OCSF that matches all requirements.

Any fields not present in an explicit mapping will be mapped to the unmapped object.

OCSF Raw
time time
resourceId unmapped.resourceId
operationName api.operation
category unmapped.category
resultType status
resultSignature unmapped.resultSignature
durationMs duration
callerIpAddress src_endpoint.ip
correlationId unmapped.correlationId
identity.authorization.scope unmapped.identity.authorization.scope
identity.authorization.action actor.invoked_by
identity.authorization.evidence.role unmapped.identity.authorization.evidence.role
identity.authorization.evidence.roleAssignmentScope unmapped.identity.authorization.evidence.roleAssignmentScope
identity.authorization.evidence.roleAssignmentId unmapped.identity.authorization.evidence.roleAssignmentId
identity.authorization.evidence.roleDefinitionId unmapped.identity.authorization.evidence.roleDefinitionId
identity.authorization.evidence.principalId actor.idp.uid
identity.authorization.evidence.principalType actor.idp.name
identity.claims.aud unmapped.identity.claims.aud
identity.claims.iss unmapped.identity.claims.iss
identity.claims.iat unmapped.identity.claims.iat
identity.claims.nbf unmapped.identity.claims.nbf
identity.claims.exp unmapped.identity.claims.exp
identity.claims.ver unmapped.identity.claims.ver
identity.claims.http://schemas.microsoft.com/identity/claims/tenantid unmapped.identity.claims.http://schemas.microsoft.com/identity/claims/tenantid
identity.claims.http://schemas.microsoft.com/claims/authnmethodsreferences unmapped.identity.claims.http://schemas.microsoft.com/claims/authnmethodsreferences
identity.claims.http://schemas.microsoft.com/identity/claims/objectidentifier unmapped.identity.claims.http://schemas.microsoft.com/identity/claims/objectidentifier
identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn actor.user.email_addr
identity.claims.puid unmapped.identity.claims.puid
identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier unmapped.identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier
identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname unmapped.identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname
identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname unmapped.identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname
identity.claims.name actor.user.name
identity.claims.groups actor.user.group.name[]
identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name unmapped.identity.claims.http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name
identity.claims.appid unmapped.identity.claims.appid
identity.claims.appidacr unmapped.identity.claims.appidacr
identity.claims.http://schemas.microsoft.com/identity/claims/scope unmapped.identity.claims.http://schemas.microsoft.com/identity/claims/scope
identity.claims.http://schemas.microsoft.com/claims/authnclassreference unmapped.identity.claims.http://schemas.microsoft.com/claims/authnclassreference
level severity
properties.statusCode unmapped.properties.statusCode
properties.serviceRequestId unmapped.properties.serviceRequestId
resourceId metadata.product.name
resourceId cloud.provider

Conditional Mapping:

  • Any fields described within the conditional mappings are subject to dynamic mappings contingent on a conditional evaluation of source data. Fields which fail to meet a particular conditional are assigned a default value from the OCSF schema description.
OCSF Raw
level severity
level severity_id
resultType status
resultType status_id
activity_name category
activity_id category
type_uid category
type_name category

Azure Eventhub Policy Event

{
    "records": [
        {
            "time": "2019-01-21T22:14:26.9792776Z",
            "resourceId": "/subscriptions/s1/resourceGroups/MSSupportGroup/providers/microsoft.support/supporttickets/123456112305841",
            "operationName": "microsoft.support/supporttickets/write",
            "category": "Write",
            "resultType": "Success",
            "resultSignature": "Succeeded.Created",
            "durationMs": 2826,
            "callerIpAddress": "111.111.111.11",
            "correlationId": "c776f9f4-36e5-4e0e-809b-c9b3c3fb62a8",
            "identity": {
               "authorization": {
                   "scope": "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg-001/providers/Microsoft.Storage/storageAccounts/       msftstorageaccount",
                   "action": "Microsoft.Storage/storageAccounts/listAccountSas/action",
                   "evidence": {
                       "role": "Azure Eventhubs Service Role",
                       "roleAssignmentScope": "/subscriptions/00000000-0000-0000-0000-000000000000",
                       "roleAssignmentId": "123abc2a6c314b0ab03a891259123abc",
                       "roleDefinitionId": "123456789de042a6a64b29b123456789",
                       "principalId": "abcdef038c6444c18f1c31311fabcdef",
                       "principalType": "ServicePrincipal"
                   }
               },
                "claims": {
                    "aud": "https://management.core.windows.net/",
                    "iss": "https://sts.windows.net/abcde123-86f1-41af-91ab-abcde1234567/",
                    "iat": "1421876371",
                    "nbf": "1421876371",
                    "exp": "1421880271",
                    "ver": "1.0",
                    "http://schemas.microsoft.com/identity/claims/tenantid": "00000000-0000-0000-0000-000000000000",
                    "http://schemas.microsoft.com/claims/authnmethodsreferences": "pwd",
                    "http://schemas.microsoft.com/identity/claims/objectidentifier": "123abc45-8211-44e3-95xq-85137af64708",
                    "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn": "[email protected]",
                    "puid": "20030000801A118C",
                    "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier": "9876543210DKk1YzIY8k0t1_EAPaXoeHyPRn6f413zM",
                    "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname": "John",
                    "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname": "Smith",
                    "name": "John Smith",
                    "groups": "12345678-cacfe77c-e058-4712-83qw-f9b08849fd60,12345678-4c41-4b23-99d2-d32ce7aa621c,12345678-0578-4ea0-9gdc-e66cc564d18c",
                    "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name": " [email protected]",
                    "appid": "12345678-3bq0-49c1-b47d-974e53cbdf3c",
                    "appidacr": "2",
                    "http://schemas.microsoft.com/identity/claims/scope": "user_impersonation",
                    "http://schemas.microsoft.com/claims/authnclassreference": "1"
                }
            },
            "level": "Information",
            "location": "global",
            "properties": {
                "statusCode": "Created",
                "serviceRequestId": "12345678-8ca0-47ad-9b80-6cde2207f97c"
            }
        }
    ]
}

OCSF Normalized Azure Eventhub Policy Event

{
      "time": 1548108866,
      "api": {
            "operation": "microsoft.support/supporttickets/write"
      },
      "unmapped": {
            "resultType": "Success",
            "identity.claims.puid": "20030000801A118C",
            "identity.claims.aud": "https://management.core.windows.net/",
            "identity.claims.iss": "https://sts.windows.net/abcde123-86f1-41af-91ab-abcde1234567/",
            "identity.claims.iat": "1421876371",
            "identity.claims.nbf": "1421876371",
            "identity.claims.exp": "1421880271",
            "identity.claims.ver": "1.0",
            "identity.authorization.evidence.role": "Azure Eventhubs Service Role",
            "identity.authorization.evidence.roleAssignmentScope": "/subscriptions/00000000-0000-0000-0000-000000000000",
            "identity.authorization.evidence.roleAssignmentId": "123abc2a6c314b0ab03a891259123abc",
            "identity.authorization.evidence.roleDefinitionId": "123456789de042a6a64b29b123456789",
            "correlationId": "c776f9f4-36e5-4e0e-809b-c9b3c3fb62a8",
            "identity.authorization.scope": "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/rg-001/providers/Microsoft.Storage/storageAccounts/       msftstorageaccount",
            "resultSignature": "Succeeded.Created",
            "category": "Write",
            "resourceId": "/subscriptions/s1/resourceGroups/MSSupportGroup/providers/microsoft.support/supporttickets/123456112305841",
            "identity.claims.appid": "12345678-3bq0-49c1-b47d-974e53cbdf3c",
            "identity.claims.appidacr": "2",
            "properties.statusCode": "Created",
            "properties.serviceRequestId": "12345678-8ca0-47ad-9b80-6cde2207f97c"
      },
      "src_endpoint": {
            "ip": "111.111.111.11"
      },
      "severity": "Information",
      "metadata": {
            "product": {
                  "name": "Azure",
                  "vendor_name": "Microsoft"
            },
            "version": "1.0.0-rc.2",
            "profiles": [
                  "cloud"
            ]
      },
      "cloud": {
            "provider": "Microsoft"
      },
      "actor": {
            "invoked_by": "Microsoft.Storage/storageAccounts/listAccountSas/action",
            "idp": {
                  "uid": "abcdef038c6444c18f1c31311fabcdef",
                  "name": "ServicePrincipal"
            },
            "user": {
                  "name": "John Smith",
                  "group": {
                        "name": [
                              "12345678-cacfe77c-e058-4712-83qw-f9b08849fd60",
                              "12345678-4c41-4b23-99d2-d32ce7aa621c",
                              "12345678-0578-4ea0-9gdc-e66cc564d18c"
                        ]
                  }
            }
      },
      "severity_id": 1,
      "category_name": "Audit Activity",
      "category_uid": 3,
      "class_name": "API Activity",
      "class_uid": 3005,
      "activity_name": "Create",
      "activity_id": 1,
      "type_name": "API Acitvity: API Activity: Create",
      "type_uid": 300501,
      "`status`": "Success",
      "`status_id`": 1
}

Security

See CONTRIBUTING for more information.

License

This library is licensed under the MIT-0 License. See the LICENSE file.

amazon-security-lake-custom-data's People

Contributors

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