Enforce Just-In-Time Privileged Access with Privileged Access Manager
Specification & Description
Eliminate permanent standing administrative IAM role bindings across production folders and projects by enforcing Just-In-Time (JIT) temporary access elevations via Google Cloud Privileged Access Manager (PAM).
Technical Specifications
Privileged Access Manager (PAM) provides native, workflow-driven Just-In-Time (JIT) privilege elevation in Google Cloud. Instead of assigning standing administrative roles (such as roles/resourcemanager.organizationAdmin, roles/owner, or roles/securityAdmin) directly to human engineers or operational accounts, teams define PAM Entitlements at the organization, folder, or project level.
Each Entitlement defines:
- Eligible Principals: Specific Google Groups or users authorized to request elevation.
- Privileged Roles: The exact IAM roles granted upon activation (e.g., roles/compute.admin, roles/container.admin).
- Max Duration: The maximum lifetime of an approved session (typically capped at 1 to 4 hours).
- Approval Workflows: Mandatory multi-party approval by designated Approvers (or automatic approval with required business justification).
- Step-Up Authentication: Enforcing multi-factor re-authentication or context-aware device checks prior to grant activation.
When an engineer submits a Grant request with a ticket reference (e.g., INC-4921) and duration, PAM validates approver sign-off, provisionally binds the role using IAM Conditions, and automatically revokes access the instant the time window expires. Every request, approval, and permission use is logged in Cloud Audit Logs.
Security Rationale
Standing admin access is one of the most abused attack vectors in enterprise cloud environments. A compromised workstation, hijacked session token, or phishing attack against an engineer with permanent administrative privileges gives an attacker immediate, unmonitored access to production systems. With PAM, engineers hold zero standing privileges during regular business hours. Elevating permissions requires an active ticket, justification, and peer approval. If an engineer's credentials are leaked, the attacker gains no ambient administrative power because no standing grants exist.
Policy Exceptions (1)
Automated CI/CD service accounts and core infrastructure deployment pipelines operating via Workload Identity Federation are exempt from PAM manual approvals, but must operate with least-privilege custom roles scoped strictly to their deployment boundary.
Operational & Implementation Notes
PAM natively integrates with Cloud Audit Logs and Cloud Logging. Every grant request, approver decision, and role activation generates structured log entries that can be streamed to a SIEM or Security Command Center to maintain an indisputable compliance audit trail for privileged access.