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mukul975
107 lines
3.3 KiB
Markdown
107 lines
3.3 KiB
Markdown
# Azure Storage Account Misconfiguration Detection Reference
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## SDK Installation
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```bash
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pip install azure-mgmt-storage azure-identity
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```
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## StorageManagementClient Initialization
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```python
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from azure.identity import DefaultAzureCredential
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from azure.mgmt.storage import StorageManagementClient
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client = StorageManagementClient(
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credential=DefaultAzureCredential(),
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subscription_id="<subscription-id>"
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)
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```
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## Key Operations
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### List All Storage Accounts
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```python
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for account in client.storage_accounts.list():
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print(account.name, account.location, account.kind)
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```
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### Get Storage Account Properties
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```python
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account = client.storage_accounts.get_properties(
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resource_group_name="myResourceGroup",
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account_name="mystorageaccount"
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)
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```
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### List Blob Containers
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```python
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containers = client.blob_containers.list(
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resource_group_name="myResourceGroup",
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account_name="mystorageaccount"
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)
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for container in containers:
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print(container.name, container.public_access)
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```
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## Security Properties to Audit
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| Property | Secure Value | Risk if Misconfigured |
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|----------|-------------|----------------------|
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| `allow_blob_public_access` | `False` | Critical — data exposed to internet |
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| `enable_https_traffic_only` | `True` | High — credentials sent in cleartext |
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| `minimum_tls_version` | `TLS1_2` | High — vulnerable to downgrade attacks |
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| `encryption.services.blob.enabled` | `True` | High — data at rest unencrypted |
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| `encryption.key_source` | `Microsoft.Keyvault` | Low — Microsoft-managed keys less controlled |
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| `network_rule_set.default_action` | `Deny` | High — storage open to all networks |
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| `encryption.require_infrastructure_encryption` | `True` | Low — no double encryption |
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## Container Public Access Levels
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| Level | Description | Risk |
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|-------|-------------|------|
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| `None` | Private, no public access | Safe |
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| `Blob` | Anonymous read for blobs only | High |
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| `Container` | Anonymous read for container and blobs | Critical |
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## Azure CLI Equivalents
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```bash
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# List storage accounts
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az storage account list --query "[].{name:name, publicAccess:allowBlobPublicAccess, httpsOnly:enableHttpsTrafficOnly, minTls:minimumTlsVersion}" -o table
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# Check specific account
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az storage account show -n mystorageaccount -g myResourceGroup
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# List containers with access level
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az storage container list --account-name mystorageaccount --query "[].{name:name, publicAccess:properties.publicAccess}" -o table
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# Disable public blob access
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az storage account update -n mystorageaccount -g myResourceGroup --allow-blob-public-access false
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# Set minimum TLS
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az storage account update -n mystorageaccount -g myResourceGroup --min-tls-version TLS1_2
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```
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## CIS Azure Benchmark Controls
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| Control | Description |
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|---------|-------------|
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| 3.1 | Ensure 'Secure transfer required' is enabled |
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| 3.7 | Ensure default network access rule is set to deny |
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| 3.8 | Ensure 'Trusted Microsoft Services' is enabled |
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| 3.10 | Ensure storage logging is enabled for Blob service |
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| 3.12 | Ensure storage account access keys are periodically regenerated |
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## Environment Variables
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| Variable | Description |
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|----------|-------------|
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| `AZURE_SUBSCRIPTION_ID` | Target Azure subscription |
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| `AZURE_CLIENT_ID` | Service principal application ID |
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| `AZURE_TENANT_ID` | Azure AD tenant ID |
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| `AZURE_CLIENT_SECRET` | Service principal secret |
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