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Verify that Server Parameter 'log_retention_days' is greater than 3 days for PostgreSQL Database ServerVerify that server parameter 'connection_throttling' is set to 'ON' for PostgreSQL Database ServerVerify that server parameter 'log_disconnections' is set to 'ON' for PostgreSQL Database ServerVerify that server parameter 'log_connections' is set to 'ON' for PostgreSQL Database ServerVerify that 'Enforce SSL connection' is set to 'ENABLED' for PostgreSQL Database ServerVerify that Server Parameter 'log_checkpoints' is set to 'ON' for PostgreSQL Database ServerVerify that Activity Log Alert exists for Create Policy AssignmentVerify that Activity Log Alert exists for Create or Update Public IP Address ruleVerify that Activity Log Alert exists for Delete SQL Server Firewall RuleVerify that Activity Log Alert exists for Create or Update SQL Server Firewall RuleVerify that Activity Log Alert exists for Delete Network Security GroupVerify that the storage account containing the container with activity logs is encrypted with Customer Managed KeyVerify that Activity Log Alert exists for Delete Policy AssignmentVerify that Activity Log Alert exists for Create or Update Network Security GroupVerify that Diagnostic Setting captures appropriate categoriesVerify that Activity Log Alert exists for Create or Update Security SolutionVerify that Activity Log Alert exists for Delete Public IP Address ruleVerify that logging for Azure AppService 'HTTP logs' is enabledVerify that logging for Azure Key Vault is 'Enabled'Verify that the Expiration Date is set for all Keys in RBAC Key VaultsEnable Role Based Access Control for Azure Key VaultVerify that Private Endpoints are Used for Azure Key VaultVerify that the Key Vault is RecoverableVerify that HTTP(S) access from the Internet is evaluated and restrictedVerify that SSH access from the Internet is evaluated and restrictedVerify that Network Security Group Flow Log retention period is 'greater than 90 days'Verify that Network Watcher is 'Enabled' for all locations in the Azure subscriptionVerify that RDP access from the Internet is evaluated and restrictedVerify that That 'Firewalls & Networks' Is Limited to Use Selected Networks Instead of All NetworksVerify that That Private Endpoints Are Used Where PossibleVerify that 'Enforce SSL connection' is set to 'Enabled' for Standard MySQL Database ServerVerify that 'TLS Version' is set to 'TLSV1.2' for MySQL flexible Database Server

Verify that 'TLS Version' is set to 'TLSV1.2' for MySQL flexible Database Server

Framework Reference: A.8.24 Integration: Azure – MySQL Flexible Server

Why this matters
TLS (Transport Layer Security) provides encrypted communication between client applications and the MySQL server. Requiring TLS 1.2 or higher ensures that weak cryptographic protocols like TLS 1.0 and 1.1 are not used, reducing susceptibility to downgrade attacks and ensuring compliance with modern security standards for protecting sensitive data in transit.

What this check does
This Auto Check verifies that the MySQL flexible server's tls_version parameter is set to TLSv1.2 or higher.

Check Logic:
Passes if:

tls_version = TLSv1.2 or higher

Fails if:

tls_version = TLSv1 or TLSv1.1

Applies to:

Azure Database for MySQL – Flexible Server

How to fix it

  1. Azure Portal:
  2. Go to Azure Database for MySQL flexible servers
  3. Select the server
  4. Under Settings, click Server parameters
  5. Search for tls_version
  6. Set the value to TLSv1.2 or higher
  7. Click Save

Azure CLI:

az mysql flexible-server parameter set \  --name tls_version \  --resource-group <resourceGroupName> \  --server-name <serverName> \  --value TLSv1.2

PowerShell:

TLS version configuration for MySQL Flexible Servers is not supported via PowerShell. Use Azure Portal or CLI.

Exceptions
No standard exceptions. TLSv1.2 or higher should always be enforced unless legacy application compatibility requires downgrade — in which case compensating controls must be documented.

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