Control: 5.2.1 Ensure server parameter 'require_secure_transport' is set to 'ON' for PostgreSQL flexible server

Description

Enable require_secure_transport on PostgreSQL flexible servers.

SSL connectivity helps to provide a new layer of security by connecting database server to client applications using Secure Sockets Layer (SSL). Enforcing SSL connections between database server and client applications helps protect against "man in the middle" attacks by encrypting the data stream between the server and application.

Remediation

From Azure Portal

1. Login to Azure Portal using https://portal.azure.com.
2. Go to Azure Database for PostgreSQL flexible servers.
3. For each database, under Settings, click Server parameters.
4. In the filter bar, type require_secure_transport.
5. Set the VALUE for require_secure_transport to ON.
6. Click Save.

From Azure CLI

Use the below command to enable require_secure_transport:

az postgres flexible-server parameter set --resource-group <resourceGroup> --server-name <serverName> --name require_secure_transport --value on

From PowerShell

Update-AzPostgreSqlFlexibleServerConfiguration -ResourceGroupName <resourceGroup> -ServerName <serverName> -Name require_secure_transport -Value on

Default Value

By default, secure connectivity is enforced, but some application frameworks may not enable it during deployment.