Microsoft.storage.storageaccounts.fileservices.fileshares.files.write remediation

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Event Information

1. The “Microsoft.Storage.storageAccounts.fileServices.fileshares.files.write” event in Azure for Azure Storage refers to a write operation performed on a file within a file share in an Azure Storage account.
2. This event indicates that a file has been created or modified within a specific file share in Azure Storage.
3. It is important to monitor this event as it can provide insights into file-level activities and help track changes made to files stored in Azure Storage.

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Examples

1. Unauthorized access: If security is impacted with Microsoft.Storage.storageAccounts.fileServices.fileshares.files.write in Azure for Azure Storage, it could indicate that there is unauthorized access to write files in the file share. This could be due to misconfigured access controls or compromised credentials, potentially leading to data breaches or unauthorized modifications to files.
2. Data integrity issues: Another impact of security being compromised with Microsoft.Storage.storageAccounts.fileServices.fileshares.files.write is the potential for data integrity issues. If unauthorized individuals are able to write files to the file share, they may be able to modify or tamper with the data stored within the files. This can lead to data corruption or manipulation, impacting the reliability and trustworthiness of the stored data.
3. Compliance violations: Security impacts with Microsoft.Storage.storageAccounts.fileServices.fileshares.files.write can also result in compliance violations. Depending on the nature of the data stored in the file share, unauthorized write access may violate industry-specific compliance regulations or data protection laws. This can lead to legal and financial consequences for the organization, as well as damage to its reputation.

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Remediation

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Using Console

1. Enable Storage Analytics Logging:
   • Go to the Azure portal and navigate to the Azure Storage account.
   • Select the “Monitoring” section from the left-hand menu.
   • Click on “Storage Analytics” and then select “Logging”.
   • Enable logging by toggling the switch to “On”.
   • Configure the desired retention period for the logs.
   • Save the changes.
2. Enable Storage Analytics Metrics:
   • In the same “Monitoring” section of the Azure Storage account, click on “Storage Analytics” and then select “Metrics”.
   • Enable metrics by toggling the switch to “On”.
   • Configure the desired retention period for the metrics.
   • Save the changes.
3. Enable Soft Delete for Blob Storage:
   • Navigate to the Azure Storage account and select the “Blob service” from the left-hand menu.
   • Click on “Data protection” and then select “Soft delete”.
   • Enable soft delete by toggling the switch to “On”.
   • Configure the desired retention period for the deleted blobs.
   • Save the changes.

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Using CLI

1. Enable logging for Azure Storage:
   • Use the az storage logging update command to enable logging for your storage account.
   • Specify the desired log retention policy, log version, and log level using the appropriate parameters.
2. Configure CORS rules for Azure Storage:
   • Use the az storage cors add command to add a new CORS rule to your storage account.
   • Specify the allowed origins, methods, headers, and exposed headers using the appropriate parameters.
3. Enable soft delete for Azure Blob Storage:
   • Use the az storage blob service-properties delete-policy update command to enable soft delete for your blob storage account.
   • Set the desired retention period for deleted blobs using the appropriate parameter.

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Using Python

1. Monitor and handle storage exceptions:
   • Implement exception handling in your Python code to catch and handle any storage-related exceptions that may occur.
   • Use the try-except block to catch specific exceptions like azure.core.exceptions.ResourceNotFoundError or azure.core.exceptions.ServiceRequestError.
   • Handle the exceptions appropriately, such as logging the error, retrying the operation, or taking any necessary corrective actions.
2. Implement access control and security measures:
   • Ensure that appropriate access controls are in place for your Azure Storage resources.
   • Use Azure Active Directory (Azure AD) to authenticate and authorize access to your storage accounts.
   • Implement role-based access control (RBAC) to grant specific permissions to users or groups.
   • Regularly review and update access policies to ensure least privilege access.
3. Enable logging and monitoring:
   • Enable diagnostic logging for your Azure Storage accounts to capture relevant logs and metrics.
   • Use Azure Monitor to collect and analyze the logs and metrics.
   • Set up alerts and notifications to proactively detect and respond to any storage-related issues.
   • Leverage Azure Application Insights or other monitoring tools to gain insights into the performance and health of your storage resources.