Zscaler-Oauth2-WhitelistURL

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This playbook enables automated addition of URLs to the Zscaler Internet Access (ZIA) security whitelist when triggered by Microsoft Sentinel incidents. It uses OAuth2 authentication to securely communicate with the Zscaler API and add URLs to the allow list while preserving existing whitelist entries.

Attribute	Value
Type	Playbook
Solution	Zscaler Internet Access
Source	View on GitHub

Logic App Connectors

This playbook uses 4 Logic App connectors / built-in actions:

Connector / Action	Type	Connections	Actions
`azuresentinel`	Managed	1	0
`azuresentinel_1`	Managed	0	1
`http`	Built-in	0	2
`workflow`	Built-in	0	1

Action parameters (URLs, paths, function IDs)

`azuresentinel_1` (Managed)

Action	Method	Endpoint	Other
Entities_-_Get_URLs	post	`/entities/url`	—

`http` (Built-in)

Action	Method	Endpoint	Other
Get_Existing_Whitelist	GET	`https://api.zsapi.net/zia/api/v1/security`	—
HTTP	PUT	`https://api.zsapi.net/zia/api/v1/security`	—

`workflow` (Built-in)

Action	Method	Endpoint	Other
Zscaler-Oauth2-Authentication	—	—	workflowId=`[concat('/subscriptions/', subscription().subscriptionId, '/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Logic/workflows/Zscaler-Oauth2-Authentication')]` triggerName=`manual`

Additional Documentation

📄 Source: Oauth2WhitelistURL/readme.md

Zscaler OAuth2 Whitelist URL Playbook

Overview

The Zscaler-Oauth2-WhitelistURL playbook is designed to:

Automatically extract URL entities from Microsoft Sentinel incidents
Authenticate with Zscaler ZIA using OAuth2 via the authentication playbook
Retrieve the existing URL whitelist to preserve current entries
Merge new URLs with the existing whitelist
Update the security policy with the combined whitelist

Prerequisites

Before deploying this playbook, ensure you have:

A Zscaler Internet Access (ZIA) subscription with API access enabled
The Zscaler-Oauth2-Authentication playbook deployed in the same resource group
OAuth2 client credentials (Client ID and Client Secret) configured in Azure Key Vault
Appropriate permissions to deploy Azure Logic Apps

Deployment

Click the button below to deploy the Zscaler-Oauth2-WhitelistURL playbook to your Azure environment:

Post-Deployment Configuration

After deployment, complete the following steps:

Authorize API Connections
- Navigate to the Logic App in the Azure portal
- Go to API connections and authorize the Microsoft Sentinel connection
- Ensure the managed identity has appropriate permissions
Grant Required Permissions
- Assign the Logic App managed identity the "Microsoft Sentinel Responder" role on your workspace
- Verify the Zscaler-Oauth2-Authentication playbook is deployed and accessible
Configure Zscaler API URL (Optional)
- The default Base URL is "zsapi.zscalertwo.net/api/v1"
- To change, edit the playbook and update the "Define_Base_URL" action for your Zscaler cloud instance
Configure Automation Rules
- Create automation rules in Microsoft Sentinel to trigger this playbook
- Configure rules to run on incidents containing URL entities that should be whitelisted

Parameters

Parameter	Description	Default Value
PlaybookName	Name of the Logic App	Zscaler-Oauth2-WhitelistURL

Workflow

Triggered by Microsoft Sentinel incident creation
Initializes temporary variables and empty URL collection array
Extracts URL entities from the incident
For each URL entity, parses and appends to the collection array
Initializes the Zscaler API Base URL variable
Calls the Zscaler-Oauth2-Authentication playbook to obtain an access token
Retrieves the existing whitelist via GET request to /security
Parses existing whitelist URLs and appends to the collection (if not null)
Deduplicates the combined URL list using union operation
Joins all URLs into a comma-separated format
Constructs the JSON request body with the whitelistUrls array
Updates the security policy via PUT request to /security with the merged whitelist

Learn More