CIS GCP 1.4 (Ensure no service accounts have admin privileges) requires: Service accounts should not be granted Owner, Editor, or broad admin roles. This is a critical-severity control.

How does EchelonGraph detect CIS GCP 1.4 violations?

EchelonGraph automatically detects CIS GCP 1.4 violations using scanner rule GCP-IAM-004. The scanner checks cloud infrastructure configurations in real-time and flags non-compliant resources.

What audit questions are asked for CIS GCP 1.4?

List all service accounts with Owner or Editor roles. What is your justification for each elevated permission? How often do you review service account permissions? Do you have an automated process to detect privilege escalation?

🔷CIS GCP 1.4Rule: GCP-IAM-004critical

Ensure no service accounts have admin privileges

Description

Service accounts should not be granted Owner, Editor, or broad admin roles.

⚠️ Risk Impact

Overprivileged service accounts are the #1 cloud breach vector. If compromised, they grant unrestricted access to all project resources.

🔍 How EchelonGraph Detects This

GCP-IAM-004Automated scanner rule

EchelonGraph's Tier 1 Cloud Scanner automatically checks for this condition across all connected Google Cloud accounts. Violations are flagged as critical-severity findings with remediation guidance.

🖥️ Manual Verification

terminal

gcloud projects get-iam-policy PROJECT_ID --format=json | jq '.bindings[] | select(.role=="roles/owner" or .role=="roles/editor") | .members[] | select(startswith("serviceAccount:"))'

🔧 Remediation

Replace roles/owner and roles/editor with granular predefined roles following the principle of least privilege.

💀 Real-World Attack Scenario

A Kubernetes pod running a web application used a service account with roles/editor. The application had an SSRF vulnerability that allowed the attacker to access the metadata server, retrieve the service account token, and use the Editor permissions to create a new service account with Owner role — achieving full project takeover within 4 minutes.

💰 Cost of Non-Compliance

Tesla 2018: Overprivileged cloud credentials led to cryptomining on exposed Kubernetes cluster. Average overprivileged-account breach cost: $4.45M. Privilege escalation attacks increase breach cost by 22% compared to non-escalation breaches.

📋 Audit Questions

1.List all service accounts with Owner or Editor roles.
2.What is your justification for each elevated permission?
3.How often do you review service account permissions?
4.Do you have an automated process to detect privilege escalation?

🎯 MITRE ATT&CK Mapping

T1078.004 — Cloud AccountsT1098 — Account ManipulationT1548 — Abuse Elevation Control Mechanism

🏗️ Infrastructure as Code Fix

main.tf

# WRONG — overprivileged:
# resource "google_project_iam_member" "sa_editor" {
#   role   = "roles/editor"
#   member = "serviceAccount:${google_service_account.app.email}"
# }

# CORRECT — least privilege:
resource "google_project_iam_member" "sa_storage" {
  project = var.project_id
  role    = "roles/storage.objectViewer"
  member  = "serviceAccount:${google_service_account.app.email}"
}
resource "google_project_iam_member" "sa_bigquery" {
  project = var.project_id
  role    = "roles/bigquery.dataViewer"
  member  = "serviceAccount:${google_service_account.app.email}"
}

⚡ Common Pitfalls

⛔Using roles/editor as a 'quick fix' during development and never removing it
⛔Custom roles that aggregate too many permissions, effectively recreating Editor
⛔Not auditing permissions inherited through group memberships

📈 Business Value

Least-privilege service accounts reduce blast radius by 95% in breach scenarios. Insurance underwriters increasingly require evidence of privilege minimization. This control directly reduces mean-time-to-contain by preventing lateral movement.

⏱️ Effort Estimate

Manual

8-16 hours to audit all service accounts and map required permissions

With EchelonGraph

EchelonGraph identifies all overprivileged service accounts in <60 seconds and recommends least-privilege replacements

🔗 Cross-Framework References

SOC2-CC6.3ISO27001-A.9.2.3NIST-AC-6

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