P0's security features for GCP: A primer
Blog post from P0 Security
P0 is a tool designed to manage IAM access within Google Cloud projects by allowing engineers to request elevated access, which is automatically revoked after a set expiration period. The integration of P0 requires significant permissions, such as setting and getting IAM policies and managing custom IAM roles, yet it avoids creating privileged resources directly within the user's Google Cloud projects. Security measures are robust, utilizing Google's domain-restricted sharing policy to prevent unauthorized access, even in the event of a P0 system compromise. By ensuring permissions cannot be extended beyond initial configurations, P0 safeguards against potential privilege escalation and external attacks. The tool requires users to verify admin access before configuring projects, and it limits the number of P0 organizations that can manage the same project, further protecting against misuse.