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RDS PostgreSQL should enforce TLS connections

AWS_RDS_018 HIGH Security

What it checks

RDS PostgreSQL instance: desired TLS enforcement is disabled or cannot be verified.

Where it applies

Terraform: aws_db_instance

CloudFormation: AWS::RDS::DBInstance

How to fix it

  1. Set rds.force_ssl to 1 in the instance's selected compatible custom DB parameter group. Review the parameter apply method and required reboot before applying; desired configuration does not prove the deployed state.

Vendor documentation

All rules