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App Service – Enforce Secure FTPS State
This check ensures that Azure Web Applications enforce a secure FTP state by allowing FTPS only or disabling FTP completely to protect data during file transfers.
Check Details
- Resource: Azure App Service (Web App)
- Check: Ensure Secure FTP State Is Enforced
- Risk: Allowing unencrypted FTP connections may expose credentials and sensitive data to interception. Enforcing FTPS only or disabling FTP ensures secure file transfer over encrypted channels.
Remediation via Azure Portal
-
Log in to the Azure Portal.
-
Navigate to App Services and select the affected Web App.
-
In the left-hand menu, select Configuration.
- Under the General settings tab, locate FTP state.
-
Set FTP state to:
- FTPS Only (Recommended)
- or Disabled
- Click Save to apply the configuration.
Remediation via Azure CLI
-
Open Azure Cloud Shell or a local terminal with Azure CLI installed.
-
Enforce FTPS only:
az webapp config set \ --resource-group <resource-group> \ --name <web-app-name> \ --ftps-state FtpsOnly
-
Alternatively, disable FTP completely:
az webapp config set \ --resource-group <resource-group> \ --name <web-app-name> \ --ftps-state Disabled
-
Verify the configured FTP state:
az webapp config show \ --resource-group <resource-group> \ --name <web-app-name> \ --query ftpsState
Replace <resource-group> and
<web-app-name> with your actual values.