💳PCI DSS 6.3Rule: PCI-6-3high

Identify Security Vulnerabilities

Description

Vulnerabilities in CDE systems must be identified and ranked by severity using a vulnerability ranking process (e.g., NVD CVSS).

⚠️ Risk Impact

Without ranking, every CVE is theoretically critical. Effective triage requires risk-based prioritization that accounts for exploitability + exposure.

🔍 How EchelonGraph Detects This

PCI-6-3Automated scanner rule

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

🔧 Remediation

Use CVSS v3.1 base score + environmental adjustments. Apply temporal scoring (is this CVE exploited in the wild?). Use CISA KEV catalog for known-exploited prioritization. Document ranking methodology.

💀 Real-World Attack Scenario

A merchant's vulnerability scanner reported 2,300 findings. The team triaged by CVSS only — not by exposure or KEV status. The breach that hit them in 2024 used CVE-2024-XYZ — CVSS 7.5 (high but not critical) but on the CISA KEV catalog as actively exploited. It was buried in the queue behind 'critical' findings on internal-only systems.

💰 Cost of Non-Compliance

Avg vuln-related breach: $4.45M. Reactive vs proactive prioritization: 3-5× MTTR difference.

📋 Audit Questions

  • 1.Ranking methodology documented?
  • 2.How is CISA KEV catalog incorporated?
  • 3.Environmental adjustments applied?
  • 4.Show vulnerability triage report.

🎯 MITRE ATT&CK Mapping

T1190 — Exploit Public-Facing Application

⚡ Common Pitfalls

  • CVSS-only triage without exploitability adjustment
  • Ignoring CISA KEV catalog
  • No environmental scoring (exposed-internet vs internal-only)

📈 Business Value

Risk-based prioritization focuses remediation on real exposure.

⏱️ Effort Estimate

Manual

Per-CVE triage time

With EchelonGraph

EchelonGraph integrates CVSS + KEV + exposure for prioritization

🔗 Cross-Framework References

SOC2-CC6.8NIST-RA-5

Automate PCI DSS 6.3 compliance

EchelonGraph continuously monitors this control across all your cloud accounts.

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