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App Service – Enforce Latest TLS Version
This check ensures that Azure Web Applications enforce the latest TLS version to maintain strong encryption and secure communications.
Check Details
- Resource: Azure App Service (Web App)
- Check: Ensure Latest TLS Version Is Enforced
- Risk: Allowing older TLS versions may expose web applications to known vulnerabilities and downgrade attacks, potentially leading to data compromise.
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 Minimum TLS Version.
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Set Minimum TLS Version to 1.3.
- Click Save to apply the configuration.
Remediation via Azure CLI
-
Open Azure Cloud Shell or a local terminal with Azure CLI installed.
-
Set the minimum TLS version to 1.3:
az webapp config set \ --resource-group <resource-group> \ --name <web-app-name> \ --min-tls-version 1.3
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Verify the configured TLS version:
az webapp config show \ --resource-group <resource-group> \ --name <web-app-name> \ --query minTlsVersion
Replace <resource-group> and
<web-app-name> with your actual values.