Firewall Policy Analyzer
Analyze firewall rules, identify gaps, and optimize security policies
What You Can Do
You can upload firewall configuration files and receive comprehensive analysis of your security rules, including policy gaps, redundancies, and compliance violations. Claude identifies misconfigurations, suggests rule consolidation opportunities, and maps your policies against industry standards like PCI-DSS, ISO 27001, and CIS benchmarks to strengthen your security posture.
Features
Detect syntax errors, misconfigurations, and invalid rule combinations
Identify uncovered traffic flows, implicit denies, and missing access controls
Find overlapping, contradictory, or superseded rules that can be consolidated
Verify alignment with PCI-DSS, ISO 27001, CIS, NIST, and SOC 2 requirements
Recommend rule ordering, consolidation, and ordering to improve firewall throughput
Analyze rules against common attack patterns and zero-trust architecture principles
Create automated policy explanations, diagrams, and change rationale documents
Compare policies across firewall vendors (Cisco ASA, Palo Alto, pfSense, Check Point)
Example Output
Policy Analysis Report:
✓ Coverage Status: 94% — 3 traffic flows lack explicit rules
- East-West traffic between DMZ and internal databases: MISSING
- Outbound SMTP to external relay: IMPLICIT DENY (flagged for remediation)
Redundancy Findings:
- Rules 42 & 45: Both allow TCP/443 to 10.0.0.0/8 (consolidate into single rule)
- Rules 103, 107, 115: Nested allow statements (simplify hierarchy)
Compliance Gaps:
- PCI-DSS requirement 1.1.2: Restrict inbound access to public IPs — 12 rules violate this
- ISO 27001 A.13.1.1: Unauthorized access detection — logging disabled on 8 rules
Recommended Changes:
- Add explicit rule:
allow tcp 10.50.0.0/16 to 192.168.100.0/24 port 3306 (reason: RDS database access) - Merge rules 42, 45 into single policy with comment:
East-West DMZ-to-Internal - Enable logging on all deny rules for compliance audit trail
What's Included
- SKILL.md: Complete firewall policy analysis workflows with decision trees and verification checklists
- Compliance Checklist: PCI-DSS, ISO 27001, CIS Firewall Benchmarks, NIST, SOC 2 mapping
- Policy Audit Report Template: Structured markdown for findings, gaps, and remediation roadmap
- Rule Documentation Template: Business justification, owner, expiration, and dependencies for each rule
- Rule Consolidation Worksheet: Step-by-step process to merge and simplify overlapping policies
- Vendor Comparison Matrix: Policy translation guide across Cisco ASA, Palo Alto, pfSense, and Check Point
Who It's For
- Security engineers & architects — Design and validate firewall policies across hybrid infrastructure
- Network administrators & ops teams — Audit existing rules and maintain policy inventory
- Compliance & audit professionals — Map policies to regulatory requirements and document control frameworks
- Security consultants — Perform third-party policy assessments and vendor consolidation planning
- Enterprise IT governance teams — Enforce policy standards and remediate compliance violations
Best For
- Firewall rule audits and validation — Systematic review of configurations for errors and gaps
- Security compliance assessments — Map policies against PCI-DSS, ISO 27001, CIS, and NIST standards
- Policy consolidation and optimization — Simplify rules, remove redundancy, improve performance
- Incident response rule creation — Generate firewall rules to block malware, botnets, or lateral movement
- Vendor migration planning — Translate policies between firewall platforms with minimal security drift
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