Apr 05, 2018 · 06 Analyze the permission (IAM policies) set for the selected IAM role, describe at step no 5 (a. and/or b.). If the selected role has overly permissive policies (e.g. "AdministratorAccess" managed policy), the IAM service role associated with your CloudFormation stack does not follow the principle of least privilege and this can lead to unwanted privilege escalation.