SQL DB instance with SSL disabled

Docs > Datadog Security > Code Security > Infrastructure as Code (IaC) Security > IaC Security Rules > SQL DB instance with SSL disabled

Metadata

Id: 02474449-71aa-40a1-87ae-e14497747b00

Cloud Provider: GCP

Platform: Terraform

Severity: High

Category: Encryption

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Provider Reference

Description

Google Cloud SQL instances without SSL enabled allow unencrypted connections, which can lead to data exposure through network eavesdropping and man-in-the-middle attacks. SSL encryption provides an essential layer of security for database connections by encrypting data in transit between the client and server. To secure your Google Cloud SQL Database, you should set ssl_mode to ENCRYPTED_ONLY or TRUSTED_CLIENT_CERTIFICATE_REQUIRED in the ip_configuration block (recommended), or set the legacy require_ssl = true:

settings {
  ip_configuration {
    ssl_mode = "ENCRYPTED_ONLY"
  }
}

The ssl_mode attribute replaces the legacy require_ssl and provides more granular control: ENCRYPTED_ONLY enforces encryption for all connections, while TRUSTED_CLIENT_CERTIFICATE_REQUIRED additionally requires valid client certificates. Without this configuration, sensitive data such as credentials, personal information, and proprietary data could be intercepted when transmitted over the network.

Compliant Code Examples

resource "google_sql_database_instance" "negative1" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
    ip_configuration {
      ipv4_enabled    = false
      private_network = google_compute_network.private_network.id
	  require_ssl 	  = true
    }
  }
}

resource "google_sql_database_instance" "negative2" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
    ip_configuration {
      ipv4_enabled    = false
      private_network = google_compute_network.private_network.id
      ssl_mode        = "ENCRYPTED_ONLY"
    }
  }
}

resource "google_sql_database_instance" "negative3" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
    ip_configuration {
      ipv4_enabled    = false
      private_network = google_compute_network.private_network.id
      ssl_mode        = "TRUSTED_CLIENT_CERTIFICATE_REQUIRED"
    }
  }
}

Non-Compliant Code Examples

resource "google_sql_database_instance" "positive1" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
  }
}

resource "google_sql_database_instance" "positive2" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
    ip_configuration {
      ipv4_enabled    = false
      private_network = google_compute_network.private_network.id
    }
  }
}

resource "google_sql_database_instance" "positive3" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
    ip_configuration {
      ipv4_enabled    = false
      private_network = google_compute_network.private_network.id
	    require_ssl 	  = false
    }
  }
}

resource "google_sql_database_instance" "positive4" {
  provider = google-beta

  name   = "private-instance-${random_id.db_name_suffix.hex}"
  region = "us-central1"

  depends_on = [google_service_networking_connection.private_vpc_connection]

  settings {
    tier = "db-f1-micro"
    ip_configuration {
      ipv4_enabled    = false
      private_network = google_compute_network.private_network.id
      ssl_mode        = "ALLOW_UNENCRYPTED_AND_ENCRYPTED"
    }
  }
}