Enable In-Transit Encryption for PostgreSQL Database Servers

More Info:

Ensure that Microsoft Azure PostgreSQL server data is encrypted in transit in order to meet security and compliance requirements. In-transit encryption helps prevent unauthorized users from getting access to critical data available in your Azure PostgreSQL databases.

Risk Level

High

Address

Security

Compliance Standards

• APRA CPS 234 (Australia)
• BSI C5 (Germany)
• Brazil LGPD
• CCPA / CPRA (California)
• CIS AZURE
• CIS Critical Security Controls v8
• CMMC 2.0
• CSA Cloud Controls Matrix v4
• Cloudanix Best Practice
• DPDPA
• Digital Operational Resilience Act (EU)
• FedRAMP
• HITRUST CSF
• ISO/IEC 27017
• ISO/IEC 27018
• ISO/IEC 27701
• KSA PDPL
• MAS Technology Risk Management (Singapore)
• MITRE ATT&CK (Cloud)
• NIS2 Directive
• NIST CSF
• NIST SP 800-171
• NYDFS 23 NYCRR 500
• PCI
• SOC2
• SWIFT Customer Security Controls Framework
• Sarbanes-Oxley IT General Controls
• Securities and Exchange Board of India (SEBI) - Cloud Security Adoption Framework
• UK NCSC Cyber Assessment Framework

Triage and Remediation

Remediation

Remediation

Using Console

Sure, here are the step-by-step instructions to remediate the misconfiguration of enabling in-transit encryption for PostgreSQL Database Servers in AZURE:

1. Go to the AZURE portal and login to your account.
2. In the left-hand menu, click on the “Azure Database for PostgreSQL servers” option.
3. Select the PostgreSQL server for which you want to enable in-transit encryption.
4. In the left-hand menu, under the “Security” section, click on the “Connection security” option.
5. Under the “Connection security” section, toggle the “Enforce SSL connection” option to “Enabled”.
6. Once you have enabled the “Enforce SSL connection” option, click on the “Save” button at the top of the page to save your changes.

That’s it! You have now remediated the misconfiguration of enabling in-transit encryption for PostgreSQL Database Servers in AZURE. Now, all connections to your PostgreSQL server will be encrypted using SSL.

Using CLI

To remediate the misconfiguration of enabling In-Transit Encryption for PostgreSQL Database Servers in AZURE using AZURE CLI, you can follow these step-by-step instructions:

1. Open the Azure CLI in your preferred terminal.

2. Login to your Azure account using the command below:

   az login
   

3. Once you are logged in, set the subscription where your PostgreSQL server is located using the command below:

   az account set --subscription <subscription_name>
   

4. Next, set the resource group where your PostgreSQL server is located using the command below:

   az group set --name <resource_group_name>
   

5. Now, enable SSL enforcement for your PostgreSQL server using the command below:

   az postgres server update --resource-group <resource_group_name> --name <postgresql_server_name> --ssl-enforcement Enabled
   

   This command will enable SSL enforcement for your PostgreSQL server which will encrypt the data in transit.

6. Finally, verify that SSL enforcement is enabled for your PostgreSQL server by running the following command:

   az postgres server show --resource-group <resource_group_name> --name <postgresql_server_name> --query sslEnforcement
   

   This command will return the value “Enabled” which confirms that SSL enforcement is enabled for your PostgreSQL server.

By following these steps, you will be able to remediate the misconfiguration of enabling In-Transit Encryption for PostgreSQL Database Servers in AZURE using AZURE CLI.

Using Python

To remediate the misconfiguration “Enable In-Transit Encryption for PostgreSQL Database Servers” in Azure using Python, you can follow the below steps:

1. Import the necessary libraries:

from azure.common.credentials import ServicePrincipalCredentials
from azure.mgmt.postgresql import PostgreSQLManagementClient
from azure.mgmt.postgresql.models import ServerUpdateParameters

2. Authenticate with Azure using Service Principal credentials:

TENANT_ID = 'your_tenant_id'
CLIENT_ID = 'your_client_id'
CLIENT_SECRET = 'your_client_secret'
SUBSCRIPTION_ID = 'your_subscription_id'

credentials = ServicePrincipalCredentials(
    client_id=CLIENT_ID,
    secret=CLIENT_SECRET,
    tenant=TENANT_ID
)

3. Instantiate the PostgreSQLManagementClient:

client = PostgreSQLManagementClient(credentials, SUBSCRIPTION_ID)

4. Get the existing server details:

resource_group_name = 'your_resource_group_name'
server_name = 'your_server_name'

server = client.servers.get(resource_group_name, server_name)

5. Update the server with the in-transit encryption enabled:

params = ServerUpdateParameters(
    ssl_enforcement="Enabled"
)

client.servers.update(resource_group_name, server_name, params)

6. Verify that the in-transit encryption is enabled:

server = client.servers.get(resource_group_name, server_name)
print(server.ssl_enforcement)

These steps will enable in-transit encryption for PostgreSQL Database Servers in Azure using Python.

Using Terraform

resource "azurerm_postgresql_server" "POSTGRESQL_SERVER_NAME" {
  name                = "POSTGRESQL_SERVER_NAME"          # replace with your server name
  location            = azurerm_resource_group.RG.name    # replace with your RG reference
  resource_group_name = azurerm_resource_group.RG.name    # replace with your RG
  sku_name            = "GP_Gen5_2"                       # replace with your SKU
  version             = "11"                              # replace with your PostgreSQL version
  administrator_login          = "ADMIN_USERNAME"         # replace
  administrator_login_password = "ADMIN_PASSWORD"         # replace with secure secret reference

  # Enable in-transit encryption (force SSL)
  ssl_enforcement_enabled             = true
  ssl_minimal_tls_version_enforced    = "TLS1_2"

  storage_mb            = 5120
  backup_retention_days = 7
  geo_redundant_backup_enabled = false
  auto_grow_enabled     = true
}

Changing ssl_enforcement_enabled and ssl_minimal_tls_version_enforced does not force replacement of the server; Terraform will perform an in-place update.

Verification: terraform plan should show the existing azurerm_postgresql_server with ssl_enforcement_enabled changing from false (or null) to true and ssl_minimal_tls_version_enforced changing to "TLS1_2".