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Azure security baseline for Logic Apps

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This security baseline applies guidance from the Microsoft cloud security benchmark version 1.0 to Logic Apps. The Microsoft cloud security benchmark provides recommendations on how you can secure your cloud solutions on Azure. The content is grouped by the security controls defined by the Microsoft cloud security benchmark and the related guidance applicable to Logic Apps.

You can monitor this security baseline and its recommendations using Microsoft Defender for Cloud. Azure Policy definitions will be listed in the Regulatory Compliance section of the Microsoft Defender for Cloud portal page.

When a feature has relevant Azure Policy Definitions, they are listed in this baseline to help you measure compliance with the Microsoft cloud security benchmark controls and recommendations. Some recommendations may require a paid Microsoft Defender plan to enable certain security scenarios.

Note

Features not applicable to Logic Apps have been excluded. To see how Logic Apps completely maps to the Microsoft cloud security benchmark, see the full Logic Apps security baseline mapping file.

Security profile

The security profile summarizes high-impact behaviors of Logic Apps, which may result in increased security considerations.

Service Behavior Attribute Value
Product Category Integration
Customer can access HOST / OS No Access
Service can be deployed into customer's virtual network True
Stores customer content at rest True

Network security

For more information, see the Microsoft cloud security benchmark: Network security.

NS-1: Establish network segmentation boundaries

Features

Virtual Network Integration

Description: Service supports deployment into customer's private Virtual Network (VNet). Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: This feature is supported through App Services for the Logic Apps Standard offering. Customers can also use ASE V3 to deploy Logic Apps Standard apps.

Configuration Guidance: Deploy the Logic Apps Standard application into any of the Workflow Standard ASPs or ASE V3 based ASPs. Customers can configure VNET integration and private endpoints with both of the above suggested options.

Reference: Logic Apps Vnet Integration

Network Security Group Support

Description: Service network traffic respects Network Security Groups rule assignment on its subnets. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: For Logic Apps Standard this is supported through App Services and Functions.

Configuration Guidance: Use network security groups (NSG) to restrict or monitor traffic by port, protocol, source IP address, or destination IP address. Create NSG rules to restrict your service's open ports (such as preventing management ports from being accessed from untrusted networks). Be aware that by default, NSGs deny all inbound traffic but allow traffic from virtual network and Azure Load Balancers.

Note: Deploy the Logic Apps Standard application into any of the Workflow Standard ASPs or ASE V3 based ASPs. Customers can configure VNET integration and private endpoints with both of the above suggested options. After this, customers can configure required NSG rules on their subnets.

NS-2: Secure cloud services with network controls

Features

Description: Service native IP filtering capability for filtering network traffic (not to be confused with NSG or Azure Firewall). Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: For Logic Apps Standard, this is supported through App Services and Functions.

Configuration Guidance: Deploy the Logic Apps Standard application into any of the Workflow Standard ASPs or ASE V3 based ASPs. Customers can configure VNET integration and private endpoints with both of the above suggested options.

Reference: Logic Apps private links

Disable Public Network Access

Description: Service supports disabling public network access either through using service-level IP ACL filtering rule (not NSG or Azure Firewall) or using a 'Disable Public Network Access' toggle switch. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: This feature is supported through Azure App Services for Logic Apps Standard.

Configuration Guidance: Disable public network access by using Logic Apps Standard in ASE v3 or a workflow Standard app service plan. With ASE v3, customers can configure to choose an internal ASE V3. With a regular workflow standard app service plan, customers can disable the public network access with private endpoints enabled.

Reference: Using Private Endpoints for App Service apps

Identity management

For more information, see the Microsoft cloud security benchmark: Identity management.

IM-1: Use centralized identity and authentication system

Features

Azure AD Authentication Required for Data Plane Access

Description: Service supports using Azure AD authentication for data plane access. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: The feature is supported in Logic Apps Consumption and Standard using different models as Logic Apps Standard model runs on top of App Services.

For more information, please visit: Consumption and Standard.

Configuration Guidance: Use Azure Active Directory (Azure AD) as the default authentication method to control your data plane access.

Reference: Azure Logic Apps AAD authentication

Local Authentication Methods for Data Plane Access

Description: Local authentications methods supported for data plane access, such as a local username and password. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: This feature is supported through Azure App Services and Functions for Logic Apps Standard. Avoid the usage of local authentication methods or accounts, these should be disabled wherever possible. Instead use Azure AD to authenticate where possible.

Configuration Guidance: Restrict the use of local authentication methods for data plane access. Instead, use Azure Active Directory (Azure AD) as the default authentication method to control your data plane access.

Reference: Authentication and authorization in Azure App Service and Azure Functions

IM-3: Manage application identities securely and automatically

Features

Managed Identities

Description: Data plane actions support authentication using managed identities. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: Authentication via managed identity to Logic Apps is supported. Additionally, the service (both Consumption and Standard) can leverage managed identity to authenticate to other services.

For more information, please visit Logic Apps Authentication using Managed Identity.

Configuration Guidance: Use Azure managed identities instead of service principals when possible, which can authenticate to Azure services and resources that support Azure Active Directory (Azure AD) authentication. Managed identity credentials are fully managed, rotated, and protected by the platform, avoiding hard-coded credentials in source code or configuration files.

Reference: Authentication types for connectors that support authentication

Service Principals

Description: Data plane supports authentication using service principals. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: Customer can use App Services Easy Auth to configure this support in the Standard offering. Or they can use AAD Authentication support in the Consumption offering.

Configuration Guidance: There is no current Microsoft guidance for this feature configuration. Please review and determine if your organization wants to configure this security feature.

Reference: AAD Authentication for Logic Apps Request triggers

IM-8: Restrict the exposure of credential and secrets

Features

Service Credential and Secrets Support Integration and Storage in Azure Key Vault

Description: Data plane supports native use of Azure Key Vault for credential and secrets store. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: The Logic Apps Standard offering is the recommended product for customers to use for all enterprise integration scenarios.

In Logic Apps Standard, as it is based on App Services, customers can refer to their secrets in Key Vault using app settings and in turn refer to app settings in their workflows.

For more information, please visit: Programmatically Accessing App Settings from Logic Apps Expressions.

Configuration Guidance: Ensure that secrets and credentials are stored in secure locations such as Azure Key Vault, instead of embedding them into code or configuration files.

Reference: Logic Apps Standard App Settings

Privileged access

For more information, see the Microsoft cloud security benchmark: Privileged access.

PA-7: Follow just enough administration (least privilege) principle

Features

Azure RBAC for Data Plane

Description: Azure Role-Based Access Control (Azure RBAC) can be used to managed access to service's data plane actions. Learn more.

Supported Enabled By Default Configuration Responsibility
False Not Applicable Not Applicable

Configuration Guidance: This feature is not supported to secure this service.

PA-8: Determine access process for cloud provider support

Features

Customer Lockbox

Description: Customer Lockbox can be used for Microsoft support access. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Configuration Guidance: In support scenarios where Microsoft needs to access your data, use Customer Lockbox to review, then approve or reject each of Microsoft's data access requests.

Reference: Logic Apps customer lockbox

Data protection

For more information, see the Microsoft cloud security benchmark: Data protection.

DP-2: Monitor anomalies and threats targeting sensitive data

Features

Data Leakage/Loss Prevention

Description: Service supports DLP solution to monitor sensitive data movement (in customer's content). Learn more.

Supported Enabled By Default Configuration Responsibility
False Not Applicable Not Applicable

Configuration Guidance: This feature is not supported to secure this service.

DP-3: Encrypt sensitive data in transit

Features

Data in Transit Encryption

Description: Service supports data in-transit encryption for data plane. Learn more.

Supported Enabled By Default Configuration Responsibility
True True Microsoft

Configuration Guidance: No additional configurations are required as this is enabled on a default deployment.

Reference: Secure your logic apps

DP-4: Enable data at rest encryption by default

Features

Data at Rest Encryption Using Platform Keys

Description: Data at-rest encryption using platform keys is supported, any customer content at rest is encrypted with these Microsoft managed keys. Learn more.

Supported Enabled By Default Configuration Responsibility
True True Microsoft

Feature notes: For the Consumption offering, the data for customers is stored in Microsoft managed storage accounts and the data is encrypted at Rest using storage encryption at rest feature.

For the Standard offering, customers manage the storage.

Configuration Guidance: No additional configurations are required as this is enabled on a default deployment.

DP-5: Use customer-managed key option in data at rest encryption when required

Features

Data at Rest Encryption Using CMK

Description: Data at-rest encryption using customer-managed keys is supported for customer content stored by the service. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: This feature is supported through Logic Apps Standard. In the Standard offering, customers can configure their own storage accounts for storing the runtime data. As customers own the storage, they can configure the CMK policies as required on their storage accounts.

Configuration Guidance: If required for regulatory compliance, define the use case and service scope where encryption using customer-managed keys are needed. Enable and implement data at rest encryption using customer-managed key for those services.

DP-6: Use a secure key management process

Features

Key Management in Azure Key Vault

Description: The service supports Azure Key Vault integration for any customer keys, secrets, or certificates. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: As Logic Apps Standard runs on top of App Services and Functions, this feature is supported through App Services.

Configuration Guidance: Use Azure Key Vault to create and control the life cycle of your encryption keys, including key generation, distribution, and storage. Rotate and revoke your keys in Azure Key Vault and your service based on a defined schedule or when there is a key retirement or compromise. When there is a need to use customer-managed key (CMK) in the workload, service, or application level, ensure you follow the best practices for key management: Use a key hierarchy to generate a separate data encryption key (DEK) with your key encryption key (KEK) in your key vault. Ensure keys are registered with Azure Key Vault and referenced via key IDs from the service or application. If you need to bring your own key (BYOK) to the service (such as importing HSM-protected keys from your on-premises HSMs into Azure Key Vault), follow recommended guidelines to perform initial key generation and key transfer.

DP-7: Use a secure certificate management process

Features

Certificate Management in Azure Key Vault

Description: The service supports Azure Key Vault integration for any customer certificates. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: On Logic Apps Standard this feature is supported through App Services support of referencing certificates from Key Vault.

For more information, please visit: Import a certificate from Key Vault.

Configuration Guidance: Use Azure Key Vault to create and control the certificate lifecycle, including creation, importing, rotation, revocation, storage, and purging of the certificate. Ensure the certificate generation follows defined standards without using any insecure properties, such as: insufficient key size, overly long validity period, insecure cryptography. Setup automatic rotation of the certificate in Azure Key Vault and the Azure service (if supported) based on a defined schedule or when there is a certificate expiration. If automatic rotation is not supported in the application, ensure they are still rotated using manual methods in Azure Key Vault and the application.

Asset management

For more information, see the Microsoft cloud security benchmark: Asset management.

AM-2: Use only approved services

Features

Azure Policy Support

Description: Service configurations can be monitored and enforced via Azure Policy. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: As Logic Apps Standard runs on top of App Services, customers can configure policies similar to how they can configure for App Services and Functions. Along with this, there are Logic Apps specific policies available as well.

App Service built-in Policies

Configuration Guidance: Use Microsoft Defender for Cloud to configure Azure Policy to audit and enforce configurations of your Azure resources. Use Azure Monitor to create alerts when there is a configuration deviation detected on the resources. Use Azure Policy [deny] and [deploy if not exists] effects to enforce secure configuration across Azure resources.

Reference: Logic Apps built-in Policies

Logging and threat detection

For more information, see the Microsoft cloud security benchmark: Logging and threat detection.

LT-1: Enable threat detection capabilities

Features

Microsoft Defender for Service / Product Offering

Description: Service has an offering-specific Microsoft Defender solution to monitor and alert on security issues. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Feature notes: This feature is supported through App Services for Logic Apps Standard.

Configuration Guidance: Use Azure Active Directory (Azure AD) as the default authentication method to control your management plane access. When you get an alert from Microsoft Defender for Key Vault, investigate and respond to the alert.

Reference: Overview of Defender for App Service to protect your Azure App Service web apps and APIs

LT-4: Enable logging for security investigation

Features

Azure Resource Logs

Description: Service produces resource logs that can provide enhanced service-specific metrics and logging. The customer can configure these resource logs and send them to their own data sink like a storage account or log analytics workspace. Learn more.

Supported Enabled By Default Configuration Responsibility
True False Customer

Configuration Guidance: Enable resource logs for the service. For example, Key Vault supports additional resource logs for actions that get a secret from a key vault or and Azure SQL has resource logs that track requests to a database. The content of resource logs varies by the Azure service and resource type.

Reference: Monitor and collect diagnostic data for workflows in Azure Logic Apps

Backup and recovery

For more information, see the Microsoft cloud security benchmark: Backup and recovery.

BR-1: Ensure regular automated backups

Features

Azure Backup

Description: The service can be backed up by the Azure Backup service. Learn more.

Supported Enabled By Default Configuration Responsibility
False Not Applicable Not Applicable

Configuration Guidance: This feature is not supported to secure this service.

Next steps