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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,26 +1,37 @@ | ||
| --- | ||
| severity: Awareness | ||
| pillar: Operational Excellence | ||
| category: Configuration | ||
| pillar: Security | ||
| category: SE:08 Hardening resources | ||
| resource: API Management | ||
| online version: https://azure.github.io/PSRule.Rules.Azure/en/rules/Azure.APIM.SampleProducts/ | ||
| --- | ||
|
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| # Remove default products | ||
| # API Management Service has default products present | ||
|
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| ## SYNOPSIS | ||
|
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| Remove starter and unlimited sample products. | ||
| API Management Services with default products configured may expose more APIs than intended. | ||
|
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| ## DESCRIPTION | ||
|
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| API Management includes two sample products _Starter_ and _Unlimited_. | ||
| Accidentally adding APIs to these sample products may expose APIs more than intended. | ||
| These products are created by default when an API Management Service using V1 plans is created. | ||
|
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| In both cases, these products are created with a default set of developer permissions that may be too permissive. | ||
| Accidentally adding APIs to these sample products may expose API metadata to unauthorized users. | ||
|
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| Before publishing APIs, plan access control for API development and usage. | ||
| Additional products or workspaces can be created to manage discovery of APIs and enforce usage policies. | ||
|
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| ## RECOMMENDATION | ||
|
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| Consider removing starter and unlimited sample products from API Management. | ||
| Consider removing starter and unlimited products from API Management to reduce the risk of unauthorized API discovery. | ||
|
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| ## NOTES | ||
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| This rule applies when analyzing API Management Services (in-flight) and running within Azure. | ||
|
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| ## LINKS | ||
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| - [SE:08 Hardening resources](https://learn.microsoft.com/azure/well-architected/security/harden-resources) | ||
| - [Create and publish a product](https://learn.microsoft.com/azure/api-management/api-management-howto-add-products) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,27 +1,105 @@ | ||
| --- | ||
| reviewed: 2025-01-17 | ||
| severity: Critical | ||
| pillar: Security | ||
| category: Network security and containment | ||
| category: SE:06 Network controls | ||
| resource: Logic App | ||
| online version: https://azure.github.io/PSRule.Rules.Azure/en/rules/Azure.LogicApp.LimitHTTPTrigger/ | ||
| --- | ||
|
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| # Limit Logic App HTTP request triggers | ||
| # Logic App HTTP request trigger is not restricted | ||
|
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| ## SYNOPSIS | ||
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| Limit HTTP request trigger access to trusted IP addresses. | ||
| Logic Apps using HTTP triggers without restrictions can be accessed from any network location including the Internet. | ||
|
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| ## DESCRIPTION | ||
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| When a Logic App uses a HTTP request trigger by default any source IP address can trigger the workflow. | ||
| Logic Apps can be configured to limit the IP addresses that are accepted to trigger the workflow. | ||
| Logic Apps are workflows that integrate services and systems across cloud services and on-premises systems. | ||
| Logic Apps can be triggered by a variety of events including HTTP requests. | ||
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| When HTTP request trigger is configured, | ||
| by default the Logic App in a consumption plan may receive requests from any source IP address. | ||
| This can expose the Logic App to unauthorized access or exfiltration attempts. | ||
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| Logic Apps can be secured by restricting access to trusted IP addresses. | ||
|
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| ## RECOMMENDATION | ||
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| Consider limiting Logic Apps with HTTP request triggers to trusted IP addresses. | ||
| Consider restricting HTTP triggers to trusted IP addresses to harden against unauthorized access or exfiltration attempts. | ||
|
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| ## EXAMPLES | ||
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| ### Configure with Azure template | ||
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| To deploy Logic Apps that pass this rule: | ||
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| - Set the `allowedCallerIpAddresses` property to a list of IP address ranges. | ||
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| For example: | ||
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| ```json | ||
| { | ||
| "type": "Microsoft.Logic/workflows", | ||
| "apiVersion": "2019-05-01", | ||
| "name": "[parameters('name')]", | ||
| "location": "[parameters('location')]", | ||
| "properties": { | ||
| "definition": "<workflow-definition>", | ||
| "parameters": {}, | ||
| "accessControl": { | ||
| "contents": { | ||
| "allowedCallerIpAddresses": [ | ||
| { | ||
| "addressRange": "192.168.12.0/23" | ||
| }, | ||
| { | ||
| "addressRange": "2001:0db8::/64" | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
| } | ||
| ``` | ||
|
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| ### Configure with Bicep | ||
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| To deploy Logic Apps that pass this rule: | ||
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| - Set the `allowedCallerIpAddresses` property to a list of IP address ranges. | ||
|
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| For example: | ||
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| ```bicep | ||
| resource app 'Microsoft.Logic/workflows@2019-05-01' = { | ||
| name: name | ||
| location: location | ||
| properties: { | ||
| definition: '<workflow-definition>' | ||
| parameters: {} | ||
| accessControl: { | ||
| contents: { | ||
| allowedCallerIpAddresses: [ | ||
| { | ||
| addressRange: '192.168.12.0/23' | ||
| } | ||
| { | ||
| addressRange: '2001:0db8::/64' | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
| } | ||
| ``` | ||
|
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| ## NOTES | ||
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| This rule currently only applies to Logic Apps using consumption plans. | ||
|
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| ## LINKS | ||
|
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| - [SE:06 Network controls](https://learn.microsoft.com/azure/well-architected/security/networking) | ||
| - [Secure access and data in Azure Logic Apps](https://learn.microsoft.com/azure/logic-apps/logic-apps-securing-a-logic-app) | ||
| - [Azure security baseline for Logic Apps](https://learn.microsoft.com/azure/logic-apps/security-baseline#network-security) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,29 +1,161 @@ | ||
| --- | ||
| severity: Important | ||
| pillar: Operational Excellence | ||
| category: Monitoring | ||
| category: OE:10 Automation design | ||
| resource: Virtual Machine | ||
| online version: https://azure.github.io/PSRule.Rules.Azure/en/rules/Azure.VM.Agent/ | ||
| ms-content-id: e4f6f6e7-593c-4507-811d-778ee8ec9ac4 | ||
| --- | ||
|
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| # VM agent is provisioned automatically | ||
| # Virtual Machine agent is not provisioned | ||
|
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| ## SYNOPSIS | ||
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| Ensure the VM agent is provisioned automatically. | ||
| Virtual Machines (VMs) without an agent provisioned are unable to use monitoring, management, and security extensions. | ||
|
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| ## DESCRIPTION | ||
|
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| The virtual machine (VM) agent is required for most functionality that interacts with the guest operating system. | ||
| This includes any VMs extensions such as Azure monitoring, management, and security features. | ||
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| VM extensions help reduce management overhead by providing an entry point to bootstrap monitoring and configuration of the guest operating system. | ||
| The VM agent is required to use any VM extensions. | ||
| Extensions help reduce management overhead by providing an entry point to bootstrap VM monitoring and configuration. | ||
|
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| By default, the VM agent is provisioned for all supported operating systems. | ||
|
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| ## RECOMMENDATION | ||
|
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| Automatically provision the VM agent for all supported operating systems, this is the default. | ||
| Consider automatically provisioning the VM agent for all supported operating systems to reduce management overhead of VMs. | ||
|
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| ## EXAMPLES | ||
|
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| ### Configure with Azure template | ||
|
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| To deploy VMs that pass this rule: | ||
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| - Set the `properties.osProfile.linuxConfiguration.provisionVMAgent` property to `true` for Linux VMs. | ||
| - Set the `properties.osProfile.windowsConfiguration.provisionVMAgent` property to `true` for Windows VMs. | ||
|
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| For example: | ||
|
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| ```json | ||
| { | ||
| "type": "Microsoft.Compute/virtualMachines", | ||
| "apiVersion": "2024-03-01", | ||
| "name": "[parameters('name')]", | ||
| "location": "[parameters('location')]", | ||
| "identity": { | ||
| "type": "SystemAssigned" | ||
| }, | ||
| "properties": { | ||
| "hardwareProfile": { | ||
| "vmSize": "Standard_D8d_v5" | ||
| }, | ||
| "osProfile": { | ||
| "computerName": "[parameters('name')]", | ||
| "adminUsername": "[parameters('adminUsername')]", | ||
| "linuxConfiguration": { | ||
| "provisionVMAgent": true, | ||
| "disablePasswordAuthentication": true | ||
| } | ||
| }, | ||
| "storageProfile": { | ||
| "imageReference": { | ||
| "publisher": "MicrosoftCblMariner", | ||
| "offer": "Cbl-Mariner", | ||
| "sku": "cbl-mariner-2-gen2", | ||
| "version": "latest" | ||
| }, | ||
| "osDisk": { | ||
| "name": "[format('{0}-disk0', parameters('name'))]", | ||
| "caching": "ReadWrite", | ||
| "createOption": "FromImage", | ||
| "managedDisk": { | ||
| "storageAccountType": "Premium_LRS" | ||
| } | ||
| } | ||
| }, | ||
| "networkProfile": { | ||
| "networkInterfaces": [ | ||
| { | ||
| "id": "[resourceId('Microsoft.Network/networkInterfaces', parameters('nicName'))]" | ||
| } | ||
| ] | ||
| } | ||
| }, | ||
| "zones": [ | ||
| "1" | ||
| ], | ||
| "dependsOn": [ | ||
| "[resourceId('Microsoft.Network/networkInterfaces', parameters('nicName'))]" | ||
| ] | ||
| } | ||
| ``` | ||
|
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| ### Configure with Bicep | ||
|
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| To deploy VMs that pass this rule: | ||
|
|
||
| - Set the `properties.osProfile.linuxConfiguration.provisionVMAgent` property to `true` for Linux VMs. | ||
| - Set the `properties.osProfile.windowsConfiguration.provisionVMAgent` property to `true` for Windows VMs. | ||
|
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||
| For example: | ||
|
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||
| ```bicep | ||
| resource linux 'Microsoft.Compute/virtualMachines@2024-03-01' = { | ||
| name: name | ||
| location: location | ||
| identity: { | ||
| type: 'SystemAssigned' | ||
| } | ||
| properties: { | ||
| hardwareProfile: { | ||
| vmSize: 'Standard_D8d_v5' | ||
| } | ||
| osProfile: { | ||
| computerName: name | ||
| adminUsername: adminUsername | ||
| linuxConfiguration: { | ||
| provisionVMAgent: true | ||
| disablePasswordAuthentication: true | ||
| } | ||
| } | ||
| storageProfile: { | ||
| imageReference: { | ||
| publisher: 'MicrosoftCblMariner' | ||
| offer: 'Cbl-Mariner' | ||
| sku: 'cbl-mariner-2-gen2' | ||
| version: 'latest' | ||
| } | ||
| osDisk: { | ||
| name: '${name}-disk0' | ||
| caching: 'ReadWrite' | ||
| createOption: 'FromImage' | ||
| managedDisk: { | ||
| storageAccountType: 'Premium_LRS' | ||
| } | ||
| } | ||
| } | ||
| networkProfile: { | ||
| networkInterfaces: [ | ||
| { | ||
| id: nic.id | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| zones: [ | ||
| '1' | ||
| ] | ||
| } | ||
| ``` | ||
|
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| ## NOTES | ||
|
|
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| In general provisioning the VM agent is recommended for all supported operating systems. | ||
| For network virtual appliances (NVAs) or specialized unsupported OS images installed from the Azure Marketplace, | ||
| the VM agent may be disabled by the publisher. | ||
|
|
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| ## LINKS | ||
|
|
||
| - [OE:10 Automation design](https://learn.microsoft.com/azure/well-architected/operational-excellence/enable-automation) | ||
| - [Azure deployment reference](https://learn.microsoft.com/azure/templates/microsoft.compute/virtualmachines) |
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