Generic Webhook
This Integration is part of the Generic Webhook Pack.#
Supported versions
Supported Cortex XSOAR versions: 5.5.0 and later.
The Generic Webhook integration is used to create incidents on event triggers. The trigger can be any query posted to the integration.
The Generic Webhook integration is a long-running integration. For more information about long-running integrations, see the Cortex XSOAR 8 Cloud, Cortex XSOAR 8 On-prem or Cortex XSIAM documentation.
Configure Generic Webhook on Cortex XSOAR#
- Navigate to Settings > Integrations > Servers & Services.
- Search for Generic Webhook.
- Click Add instance to create and configure a new integration instance.
| Parameter | Description | Required |
|---|---|---|
| Listen Port | Runs the service on this port from within Cortex XSOAR. Requires a unique port for each long-running integration instance. Do not use the same port for multiple instances. Note: If you click the test button more than once, a failure may occur mistakenly indicating that the port is already in use. | True |
| username | Username (see Security for more details) | (For Cortex XSOAR 6.x) False (For Cortex XSOAR 8 and Cortex XSIAM) Optional for engines, otherwise mandatory. Using the _header: feature without using an engine will not work. |
| password | Password (see Security for more details) | (For Cortex XSOAR 6.x) False (For Cortex XSOAR 8 and Cortex XSIAM) Optional for engines, otherwise mandatory. Using the _header: feature without using an engine will not work. |
| certificate | For use with HTTPS - the certificate that the service should use. Supported for Cortex XSOAR On-prem (6.x or 8) or when using an engine. Cortex XSOAR 8 Cloud tenants and Cortex XSIAM tenants do not support custom certificates. | False |
| Private Key | For use with HTTPS - the private key that the service should use. Supported for Cortex XSOAR On-prem (6.x or 8) or when using an engine. Cortex XSOAR 8 Cloud tenants and Cortex XSIAM tenants do not support private keys. | False |
| incidentType | Incident type | False |
| store_samples | Store sample events for mapping (Because this is a push-based integration, it cannot fetch sample events in the mapping wizard). | False |
- Click Done.
- For Cortex XSOAR 6.x:
- Navigate to Settings > About > Troubleshooting.
- In the Server Configuration section, verify that the value for the instance.execute.external.\<INTEGRATION-INSTANCE-NAME> key is set to true. If this key does not exist, click + Add Server Configuration and add instance.execute.external.\<INTEGRATION-INSTANCE-NAME> and set the value to true. See the following reference article for further information.
Set up Authentication#
The Generic Webhook integration running on a Cortex XSOAR 8 Cloud tenant or Cortex XSIAM tenant requires basic authentication. Running on an engine does not require basic authentication, but it is recommended. For Cortex XSOAR On-prem (6.x or 8) or when running on an engine, you can set up authentication using custom certificates. For more information about setting up custom certificates for Cortex XSOAR 8 On-prem, see HTTPS with a signed certificate.
Note: You can use header authentication only when using an engine.
Trigger the Webhook URL#
Note:
For Cortex XSOAR 8 On-prem, you need to add the ext- FQDN DNS record to map the Cortex XSOAR DNS name to the external IP address.
For example, ext-xsoar.mycompany.com.
For Cortex XSOAR 8 On-prem, Cortex XSOAR Cloud, or Cortex XSIAM, trigger the webhook as follows:
<ext-<CORTEX-XSOAR-URL>/xsoar/instance/execute/<INTEGRATION-INSTANCE-NAME>
For example, https://ext-mytenant.crtx.us.paloaltonetworks.com/xsoar/instance/execute/my_instance_01.
Note that the string instance does not refer to the name of your Cortex XSOAR instance, but rather is part of the URL.
For Cortex XSOAR 6.x, trigger the webhook as follows:
<CORTEX-XSOAR-URL>/instance/execute/<INTEGRATION-INSTANCE-NAME>
For example, https://my.xsoar.live/instance/execute/webhook.
Note that the string instance does not refer to the name of your Cortex XSOAR instance, but rather is part of the URL.
If you're not invoking the integration via the server HTTPS endpoint, trigger the webhook URL as follows:
<CORTEX-XSOAR-URL>:<LISTEN_PORT>/
For example, https://my.xsoar.live:8000/
The following examples assume you invoke the integration via the server HTTPS endpoint. If you don't, replace the URL in the examples as suggested above.
Note:
The Listen Port needs to be available, which means it has to be unique for each integration instance. It cannot be used by other long-running integrations.
Usage#
The Generic Webhook integration accepts POST HTTP queries, with the following optional fields in the request body:
| Field | Type | Description |
|---|---|---|
| name | string | Name of the incident to be created. |
| type | string | Type of the incident to be created. If not provided, the value of the integration parameter Incident type will be used. |
| occurred | string | Date the incident occurred in ISO-8601 format. If not provided, the trigger time will be used. |
| rawJson | object | Details of the incident to be created. Headers can be found in a seperate key. For example, {"field1":"value1","field2":"value2","headers": {"header_field3": "header_value3"}} |
For example, the following triggers the webhook using cURL:
curl -POST https://my.xsoar.live/instance/execute/webhook -H "Authorization: token" -H "Content-Type: application/json" -d '{"name":"incident created via generic webhook","rawJson":{"some_field":"some_value"}}'
The request payload does not have to contain the fields mentioned above, and may include anything:
curl -POST https://my.xsoar.live/instance/execute/webhook -H "Authorization: token" -H "Content-Type: application/json" -d '{"string_field":"string_field_value","array_field":["item1","item2"]}'
Multiple inicidents can be created in one request by sending an array as the request body:
curl -POST https://my.xsoar.live/instance/execute/webhook -H "Authorization: token" -H "Content-Type: application/json" -d '[{"name":"incident1","rawJson":{"some_field":"some_value"}}, {"name":"incident2","rawJson":{"some_field":"some_value"}}]'
The payload could then be mapped in the Mapping wizard (Cortex XSOAR 6.13) or Mapping wizard (Cortex XSOAR 8 Cloud) or Mapping wizard (Cortex XSOAR 8.7 On-prem):
Note that the Store sample events for mapping parameter needs to be set.
The response is an array containing an object with the created incident metadata, such as the incident ID.
Security#
- We recommend using the authorization header, as described below, to validate the requests sent from your app. If you do not use this header it might result in incident creation from unexpected requests.
- To validate an incident request creation you can use the Username/Password integration parameters for one of the following:
- Basic authentication
- Verification token given in a request header, by setting the username to
_header:<HEADER-NAME>and the password to be the header value.
- If you are not using server rerouting as described above, you can configure an HTTPS server by providing a certificate and private key.
Troubleshooting#
- Header Size Limit: Each server or framework may impose a limit on the total size of the headers received in a request. For example, servers like Nginx or Apache have their own default values that can be configured. FastAPI itself doesn't specifically limit the header size, but underlying ASGI servers like Uvicorn or Hypercorn that run FastAPI do have default limits (e.g., Uvicorn has a default of 1MB for the total size of request headers).
- Allowed Characters: Headers should only use ASCII characters. Non-ASCII characters must be encoded.
- Header Names and Values: Certain characters are restricted in header names and values. Typically, names cannot include characters such as : or newlines, and values are restricted from including newlines to protect against header injection attacks.
- Case Sensitivity: Header keys are case-insensitive as per HTTP standards, but it is good practice to keep a consistent casing convention for ease of maintenance and readability.