Trusted Microsoft Services Not Enabled

• Query id: e25b56cd-a4d6-498f-ab92-e6296a082097
• Query name: Trusted Microsoft Services Not Enabled
• Platform: AzureResourceManager
• Severity: Medium
• Category: Networking and Firewall
• CWE: 284
• URL: Github

Description

Trusted Microsoft Services should be enabled for Storage Account access
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      bypass: 'None'
      virtualNetworkRules: [
        {
          id: 'id'
          action: 'Allow'
        }
        {
          id: 'id'
          action: 'Allow'
        }
      ]
      defaultAction: 'Deny'
    }
  }
}

Positive test num. 2 - json file

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "2.0.0.0",
  "apiProfile": "2019-03-01-hybrid",
  "parameters": {},
  "variables": {},
  "functions": [],
  "resources": [
    {
      "type": "Microsoft.Storage/storageAccounts",
      "apiVersion": "2019-06-01",
      "name": "storage",
      "location": "location1",
      "sku": {
        "name": "Standard_LRS",
        "tier": "Standard"
      },
      "kind": "StorageV2",
      "properties": {
        "accessTier": "Hot",
        "networkAcls": {
          "bypass": "None",
          "virtualNetworkRules": [
            {
              "id": "id",
              "action": "Allow"
            },
            {
              "id": "id",
              "action": "Allow"
            }
          ],
          "defaultAction": "Deny"
        }
      },
      "resources": [
      ]
    }
  ],
  "outputs": {}
}

Positive test num. 3 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      bypass: 'None'
      defaultAction: 'Deny'
    }
  }
}

Positive test num. 4 - json file

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "2.0.0.0",
  "apiProfile": "2019-03-01-hybrid",
  "parameters": {},
  "variables": {},
  "functions": [],
  "resources": [
    {
      "type": "Microsoft.Storage/storageAccounts",
      "apiVersion": "2019-06-01",
      "name": "storage",
      "location": "location1",
      "sku": {
        "name": "Standard_LRS",
        "tier": "Standard"
      },
      "kind": "StorageV2",
      "properties": {
        "accessTier": "Hot",
        "networkAcls": {
          "bypass": "None",
          "defaultAction": "Deny"
        }
      },
      "resources": [
      ]
    }
  ],
  "outputs": {}
}

Positive test num. 5 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      bypass: 'None'
      virtualNetworkRules: [
        {
          id: 'id'
          action: 'Allow'
        }
        {
          id: 'id'
          action: 'Allow'
        }
      ]
      defaultAction: 'Deny'
    }
  }
}

Positive test num. 6 - json file

{
  "properties": {
    "template": {
      "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
      "contentVersion": "2.0.0.0",
      "apiProfile": "2019-03-01-hybrid",
      "parameters": {},
      "variables": {},
      "functions": [],
      "resources": [
        {
          "type": "Microsoft.Storage/storageAccounts",
          "apiVersion": "2019-06-01",
          "name": "storage",
          "location": "location1",
          "sku": {
            "name": "Standard_LRS",
            "tier": "Standard"
          },
          "kind": "StorageV2",
          "properties": {
            "accessTier": "Hot",
            "networkAcls": {
              "bypass": "None",
              "virtualNetworkRules": [
                {
                  "id": "id",
                  "action": "Allow"
                },
                {
                  "id": "id",
                  "action": "Allow"
                }
              ],
              "defaultAction": "Deny"
            }
          },
          "resources": [
          ]
        }
      ],
      "outputs": {}
    },
    "parameters": {}
  },
  "kind": "template",
  "type": "Microsoft.Blueprint/blueprints/artifacts",
  "name": "myTemplate"
}

Positive test num. 7 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      bypass: 'None'
      defaultAction: 'Deny'
    }
  }
}

Positive test num. 8 - json file

{
  "properties": {
    "template": {
      "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
      "contentVersion": "2.0.0.0",
      "apiProfile": "2019-03-01-hybrid",
      "parameters": {},
      "variables": {},
      "functions": [],
      "resources": [
        {
          "type": "Microsoft.Storage/storageAccounts",
          "apiVersion": "2019-06-01",
          "name": "storage",
          "location": "location1",
          "sku": {
            "name": "Standard_LRS",
            "tier": "Standard"
          },
          "kind": "StorageV2",
          "properties": {
            "accessTier": "Hot",
            "networkAcls": {
              "bypass": "None",
              "defaultAction": "Deny"
            }
          },
          "resources": [
          ]
        }
      ],
      "outputs": {}
    },
    "parameters": {}
  },
  "kind": "template",
  "type": "Microsoft.Blueprint/blueprints/artifacts",
  "name": "myTemplate"
}

Code samples without security vulnerabilities

Negative test num. 1 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      virtualNetworkRules: [
        {
          id: 'id'
          action: 'Allow'
        }
        {
          id: 'id'
          action: 'Allow'
        }
      ]
      defaultAction: 'Allow'
    }
  }
}

Negative test num. 2 - json file

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "2.0.0.0",
  "apiProfile": "2019-03-01-hybrid",
  "parameters": {},
  "variables": {},
  "functions": [],
  "resources": [
    {
      "type": "Microsoft.Storage/storageAccounts",
      "apiVersion": "2019-06-01",
      "name": "storage",
      "location": "location1",
      "sku": {
        "name": "Standard_LRS",
        "tier": "Standard"
      },
      "kind": "StorageV2",
      "properties": {
        "accessTier": "Hot",
        "networkAcls": {
          "virtualNetworkRules": [
            {
              "id": "id",
              "action": "Allow"
            },
            {
              "id": "id",
              "action": "Allow"
            }
          ],
          "defaultAction": "Allow"
        }
      },
      "resources": [
      ]
    }
  ],
  "outputs": {}
}

Negative test num. 3 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      bypass: 'AzureServices'
      virtualNetworkRules: [
        {
          id: 'id'
          action: 'Allow'
        }
        {
          id: 'id'
          action: 'Allow'
        }
      ]
      defaultAction: 'Deny'
    }
  }
}

Negative test num. 4 - json file

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "2.0.0.0",
  "apiProfile": "2019-03-01-hybrid",
  "parameters": {},
  "variables": {},
  "functions": [],
  "resources": [
    {
      "type": "Microsoft.Storage/storageAccounts",
      "apiVersion": "2019-06-01",
      "name": "storage",
      "location": "location1",
      "sku": {
        "name": "Standard_LRS",
        "tier": "Standard"
      },
      "kind": "StorageV2",
      "properties": {
        "accessTier": "Hot",
        "networkAcls": {
          "bypass": "AzureServices",
          "virtualNetworkRules": [
            {
              "id": "id",
              "action": "Allow"
            },
            {
              "id": "id",
              "action": "Allow"
            }
          ],
          "defaultAction": "Deny"
        }
      },
      "resources": [
      ]
    }
  ],
  "outputs": {}
}

Negative test num. 5 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      virtualNetworkRules: [
        {
          id: 'id'
          action: 'Allow'
        }
        {
          id: 'id'
          action: 'Allow'
        }
      ]
      defaultAction: 'Allow'
    }
  }
}

Negative test num. 6 - json file

{
  "properties": {
    "template": {
      "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
      "contentVersion": "2.0.0.0",
      "apiProfile": "2019-03-01-hybrid",
      "parameters": {},
      "variables": {},
      "functions": [],
      "resources": [
        {
          "type": "Microsoft.Storage/storageAccounts",
          "apiVersion": "2019-06-01",
          "name": "storage",
          "location": "location1",
          "sku": {
            "name": "Standard_LRS",
            "tier": "Standard"
          },
          "kind": "StorageV2",
          "properties": {
            "accessTier": "Hot",
            "networkAcls": {
              "virtualNetworkRules": [
                {
                  "id": "id",
                  "action": "Allow"
                },
                {
                  "id": "id",
                  "action": "Allow"
                }
              ],
              "defaultAction": "Allow"
            }
          },
          "resources": [
          ]
        }
      ],
      "outputs": {}
    },
    "parameters": {}
  },
  "kind": "template",
  "type": "Microsoft.Blueprint/blueprints/artifacts",
  "name": "myTemplate"
}

Negative test num. 7 - bicep file

resource storage 'Microsoft.Storage/storageAccounts@2019-06-01' = {
  name: 'storage'
  location: 'location1'
  sku: {
    name: 'Standard_LRS'
    tier: 'Standard'
  }
  kind: 'StorageV2'
  properties: {
    accessTier: 'Hot'
    networkAcls: {
      bypass: 'AzureServices'
      virtualNetworkRules: [
        {
          id: 'id'
          action: 'Allow'
        }
        {
          id: 'id'
          action: 'Allow'
        }
      ]
      defaultAction: 'Deny'
    }
  }
}

Negative test num. 8 - json file

{
  "properties": {
    "template": {
      "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
      "contentVersion": "2.0.0.0",
      "apiProfile": "2019-03-01-hybrid",
      "parameters": {},
      "variables": {},
      "functions": [],
      "resources": [
        {
          "type": "Microsoft.Storage/storageAccounts",
          "apiVersion": "2019-06-01",
          "name": "storage",
          "location": "location1",
          "sku": {
            "name": "Standard_LRS",
            "tier": "Standard"
          },
          "kind": "StorageV2",
          "properties": {
            "accessTier": "Hot",
            "networkAcls": {
              "bypass": "AzureServices",
              "virtualNetworkRules": [
                {
                  "id": "id",
                  "action": "Allow"
                },
                {
                  "id": "id",
                  "action": "Allow"
                }
              ],
              "defaultAction": "Deny"
            }
          },
          "resources": [
          ]
        }
      ],
      "outputs": {}
    },
    "parameters": {}
  },
  "kind": "template",
  "type": "Microsoft.Blueprint/blueprints/artifacts",
  "name": "myTemplate"
}