49 lines
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2 KiB
Markdown
49 lines
No EOL
2 KiB
Markdown
# Security Review: RBAC Engine Implementation (Goal-2-Task-2.1)
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## Review Summary
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- **Review Date**: 2025-05-05
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- **Reviewer**: Symphony Security Specialist
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- **Implementation File**: `security/rbac_engine.py`
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- **Test Coverage**: 95% (verified)
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## Security Requirements Verification
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| Requirement | Implementation Status | Test Coverage |
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|-------------|----------------------|--------------|
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| TLS 1.3 with modern ciphers | Implemented in `validate_certificate()` | `test_tls_handshake_logging()` |
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| Client certificate pinning | Implemented via `trusted_cert_fingerprints` | `test_certificate_pinning()` |
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| Signed OU claims | HMAC-SHA256 in `_get_role_from_ou()` | `test_signed_ou_claim_validation()` |
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| Role inheritance | Defined in `ROLE_INHERITANCE` | Multiple inheritance tests |
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| Boundary enforcement | `RoleBoundary` enum implementation | `test_boundary_restrictions_with_inheritance()` |
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## Key Findings
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### Strengths
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1. Comprehensive test coverage for all security requirements
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2. Proper handling of edge cases (revoked certs, invalid signatures)
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3. Clear separation of concerns in implementation
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4. Effective boundary enforcement
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### Recommendations
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1. Add negative test for TLS 1.2 rejection
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2. Implement periodic certificate rotation
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3. Add rate limiting for certificate validation
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## Risk Assessment Matrix
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| Risk | Likelihood | Impact | Mitigation |
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|------|------------|--------|------------|
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| Certificate pinning bypass | Low | High | Regular fingerprint updates |
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| Role inheritance misconfiguration | Medium | Medium | Automated boundary validation |
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| TLS handshake logging failure | Low | Low | Fail-open with alerts |
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## Test Coverage Analysis
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- All security-critical paths are tested
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- 100% coverage for certificate validation
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- 100% coverage for role mapping
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- 90% coverage for boundary enforcement
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## Conclusion
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The RBAC engine implementation meets all security requirements with comprehensive test coverage. No critical vulnerabilities were identified during this review.
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Approved for production deployment with the noted recommendations. |