CIS GCP 5.2 (Ensure Cloud Storage buckets have versioning enabled) requires: Object versioning protects against accidental deletion and overwrites. This is a medium-severity control.

How does EchelonGraph detect CIS GCP 5.2 violations?

EchelonGraph automatically detects CIS GCP 5.2 violations using scanner rule GCP-STG-002. The scanner checks cloud infrastructure configurations in real-time and flags non-compliant resources.

What audit questions are asked for CIS GCP 5.2?

Which buckets have versioning disabled? What is your lifecycle policy for versioned objects? How do you protect against malicious deletion of version history?

🔷CIS GCP 5.2Rule: GCP-STG-002medium

Ensure Cloud Storage buckets have versioning enabled

Description

Object versioning protects against accidental deletion and overwrites.

⚠️ Risk Impact

Without versioning, ransomware attacks can permanently destroy data. Accidental deletions are unrecoverable.

🔍 How EchelonGraph Detects This

GCP-STG-002Automated scanner rule

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

🖥️ Manual Verification

terminal

gsutil versioning get gs://BUCKET_NAME

🔧 Remediation

Enable versioning: gsutil versioning set on gs://BUCKET_NAME

💀 Real-World Attack Scenario

A disgruntled employee with storage admin access deleted all objects in the production backup bucket during their last day. Without versioning, the backups were permanently lost. The company discovered the deletion 3 days later when a database restore was needed, resulting in permanent loss of 2 weeks of transaction data.

💰 Cost of Non-Compliance

Average cost of permanent data loss: $150K-$2M depending on data type. Ransomware attacks targeting unversioned storage succeed 95% of the time. Business interruption from data loss averages 14 days.

📋 Audit Questions

1.Which buckets have versioning disabled?
2.What is your lifecycle policy for versioned objects?
3.How do you protect against malicious deletion of version history?

🎯 MITRE ATT&CK Mapping

T1485 — Data DestructionT1486 — Data Encrypted for ImpactT1561 — Disk Wipe

🏗️ Infrastructure as Code Fix

main.tf

resource "google_storage_bucket" "versioned" {
  name     = "${var.project_id}-backups"
  location = var.region
  versioning {
    enabled = true
  }
  lifecycle_rule {
    condition { num_newer_versions = 5 }
    action { type = "Delete" }
  }
}

⚡ Common Pitfalls

⛔Enabling versioning without lifecycle rules, leading to unbounded storage costs
⛔Not enabling Object Lock for compliance-critical data that needs WORM protection
⛔Assuming versioning protects against bucket-level deletion (it doesn't)

📈 Business Value

Versioning provides instant recovery from accidental deletion, ransomware, and insider threats. It's the cheapest insurance policy for your data.

⏱️ Effort Estimate

Manual

1 hour to enable versioning on all buckets

With EchelonGraph

EchelonGraph monitors versioning status across all buckets continuously

🔗 Cross-Framework References

SOC2-CC6.1ISO27001-A.12.3.1

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