How does EchelonGraph detect CIS GCP 1.1 violations?

EchelonGraph automatically detects CIS GCP 1.1 violations using scanner rule GCP-IAM-001. The scanner checks cloud infrastructure configurations in real-time and flags non-compliant resources.

What audit questions are asked for CIS GCP 1.1?

Show evidence that all IAM members use corporate domain accounts. How do you prevent users from adding personal Gmail accounts to projects? What is your process for detecting non-corporate identities in IAM bindings? When was the last access review for IAM members?

🔷CIS GCP 1.1Rule: GCP-IAM-001high

Ensure corporate login credentials are used

Description

Verify that all users use corporate Google Workspace or Cloud Identity accounts, not personal Gmail accounts.

⚠️ Risk Impact

Personal accounts bypass organizational security policies including MFA requirements, password policies, and session controls.

🔍 How EchelonGraph Detects This

GCP-IAM-001Automated scanner rule

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

🖥️ Manual Verification

terminal

gcloud projects get-iam-policy PROJECT_ID --format=json | jq '.bindings[].members[]' | grep -v '@your-domain.com'

🔧 Remediation

Configure Cloud Identity or Google Workspace. Remove personal Gmail accounts from IAM policies.

💀 Real-World Attack Scenario

A developer used their personal Gmail to access GCP during a weekend deploy. Six months later, that developer left the company but retained access through their personal account — which was never deprovisioned. The attacker compromised the developer's personal Gmail via a phishing email and pivoted directly into the GCP project, exfiltrating 2.3TB of customer data before detection.

💰 Cost of Non-Compliance

Average cost of credential-based breach: $4.81M (IBM 2024). GDPR Art. 32 fines for inadequate access controls: up to €20M or 4% of global revenue. Additional cost: forensic investigation of personal accounts outside corporate jurisdiction averages $180K.

📋 Audit Questions

1.Show evidence that all IAM members use corporate domain accounts.
2.How do you prevent users from adding personal Gmail accounts to projects?
3.What is your process for detecting non-corporate identities in IAM bindings?
4.When was the last access review for IAM members?

🎯 MITRE ATT&CK Mapping

T1078 — Valid AccountsT1078.004 — Cloud Accounts

🏗️ Infrastructure as Code Fix

main.tf

resource "google_organization_policy" "domain_restricted_sharing" {
  org_id     = var.org_id
  constraint = "iam.allowedPolicyMemberDomains"
  list_policy {
    allow {
      values = [var.corporate_domain_id]
    }
  }
}

⚡ Common Pitfalls

⛔Forgetting to apply the domain restriction organization policy at the org level, leaving individual projects unprotected
⛔Not accounting for service accounts that may have cross-organization bindings
⛔Overlooking CI/CD pipeline accounts that were set up with personal emails during initial prototyping

📈 Business Value

Corporate identity enforcement creates a single pane of glass for access management. It enables immediate offboarding (disable Workspace account = revoke all cloud access), ensures compliance audit trails map to real employees, and prevents shadow IT proliferation.

⏱️ Effort Estimate

Manual

4-8 hours to audit all projects and remove personal accounts; ongoing weekly reviews

With EchelonGraph

EchelonGraph detects non-corporate identities in <60 seconds across all projects

🔗 Cross-Framework References

SOC2-CC6.1ISO27001-A.9.2.1

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