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- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing - Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives - Added LRU caching system for address validation with 10-minute TTL - Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures - Fixed duplicate function declarations and import conflicts across multiple files - Added error recovery mechanisms with multiple fallback strategies - Updated tests to handle new validation behavior for suspicious addresses - Fixed parser test expectations for improved validation system - Applied gofmt formatting fixes to ensure code style compliance - Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot - Resolved critical security vulnerabilities in heuristic address extraction - Progress: Updated TODO audit from 10% to 35% complete 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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Security Audit Fix Implementation Plans - Summary
This document provides an overview of all detailed implementation plans created for the security audit fixes identified in TODO_AUDIT_FIX.md. Each major todo item has been broken down into detailed plans with specific tasks, time estimates, and implementation strategies.
Critical Priority Plans
01 - CRITICAL-001: Integer Overflow Vulnerabilities
Status: Partially Fixed (Swap parsing completed)
Estimate: 4-6 hours
Detailed Plan: docs/planning/01_CRITICAL-001_Integer_Overflow_Fix_Plan.md
Key Tasks:
- Create safe conversion package for uint64 → uint32/int64 conversions
- Add bounds checking for all affected calculation functions
- Update error handling for conversion failures
- Add unit tests for overflow detection
02 - CRITICAL-002: Unhandled Error Conditions
Status: Not Fixed
Estimate: 8-10 hours
Detailed Plan: docs/planning/02_CRITICAL-002_Unhandled_Errors_Fix_Plan.md
Key Tasks:
- Add proper error handling for lifecycle management
- Implement graceful degradation for failures
- Create error aggregation and reporting system
- Add monitoring alerts for repeated failures
High Priority Plans
03 - HIGH-001: Private Key Memory Security
Status: Not Fixed
Estimate: 2-3 hours
Detailed Plan: docs/planning/03_HIGH-001_Private_Key_Security_Plan.md
Key Tasks:
- Enhance
clearPrivateKey()function - Implement secure memory zeroing for big.Int data
- Add memory protection during key operations
- Create unit tests for memory clearing verification
04 - HIGH-002: Race Condition Fixes
Status: Not Fixed
Estimate: 4-5 hours
Detailed Plan: docs/planning/04_HIGH-002_Race_Condition_Fixes_Plan.md
Key Tasks:
- Review shared state access patterns
- Replace inconsistent atomic usage with proper synchronization
- Add race detection tests to CI pipeline
- Implement proper read-write lock usage
05 - HIGH-003: Chain ID Validation Enhancement
Status: Not Fixed
Estimate: 2 hours
Detailed Plan: docs/planning/05_HIGH-003_Chain_ID_Validation_Plan.md
Key Tasks:
- Add comprehensive chain ID validation in transaction signing
- Implement EIP-155 replay protection verification
- Add chain ID mismatch detection and alerts
- Create tests for cross-chain replay attack prevention
Medium Priority Plans
06 - MEDIUM-001: Rate Limiting Enhancement
Status: Not Fixed
Estimate: 3-4 hours
Detailed Plan: docs/planning/06_MEDIUM-001_Rate_Limiting_Enhancement_Plan.md
Key Tasks:
- Implement sliding window rate limiting
- Add distributed rate limiting support
- Create adaptive rate limiting based on system load
- Add rate limiting bypass detection and alerting
07 - MEDIUM-002: Input Validation Strengthening
Status: Not Fixed
Estimate: 4-5 hours
Detailed Plan: docs/planning/07_MEDIUM-002_Input_Validation_Enhancement_Plan.md
Key Tasks:
- Enhance ABI decoding validation throughout parsing modules
- Add comprehensive bounds checking for external data
- Implement input sanitization for log messages
- Create fuzzing test suite for all input validation functions
08 - MEDIUM-003: Sensitive Information Logging
Status: Not Fixed
Estimate: 2-3 hours
Detailed Plan: docs/planning/08_MEDIUM-003_Sensitive_Logging_Plan.md
Key Tasks:
- Implement log sanitization for addresses and transaction data
- Add configurable log level filtering for sensitive information
- Create secure audit logging format
- Implement log encryption for sensitive audit trails
Low Priority Plans
09 - LOW-001: Code Quality Improvements
Status: Not Fixed
Estimate: 6-8 hours
Detailed Plan: docs/planning/09_LOW-001_Code_Quality_Improvements_Plan.md
Key Tasks:
- Fix unused function warnings from staticcheck
- Remove dead code and unused variables
- Improve error message formatting (capitalization)
- Add missing documentation for exported functions
10 - LOW-002: Testing Infrastructure
Status: Not Fixed
Estimate: 8-10 hours
Detailed Plan: docs/planning/10_LOW-002_Testing_Infrastructure_Plan.md
Key Tasks:
- Expand fuzzing test coverage for all critical components
- Add property-based testing for mathematical operations
- Implement integration security test suite
- Create performance regression tests for security features
11 - LOW-003: Monitoring & Observability
Status: Not Fixed
Estimate: 6-8 hours
Detailed Plan: docs/planning/11_LOW-003_Monitoring_Observability_Plan.md
Key Tasks:
- Add security event metrics and dashboards
- Implement anomaly detection for unusual transaction patterns
- Create security audit log analysis tools
- Add performance monitoring for security operations
Implementation Phases
Phase 1: Critical Fixes (Week 1)
Total Estimated Time: 12-16 hours
- Complete all tasks in CRITICAL-001 and CRITICAL-002
- Focus on integer overflow and unhandled error fixes
- Implement basic testing for critical fixes
Phase 2: High Priority Security (Week 2)
Total Estimated Time: 8-10 hours
- Complete all high priority tasks (HIGH-001, HIGH-002, HIGH-003)
- Focus on private key security, race conditions, and chain validation
- Test security enhancements thoroughly
Phase 3: Medium Priority Improvements (Week 3-4)
Total Estimated Time: 9-12 hours
- Complete medium priority tasks (MEDIUM-001, MEDIUM-002, MEDIUM-003)
- Focus on rate limiting, input validation, and secure logging
- Integrate improvements and test thoroughly
Phase 4: Quality & Maintenance (Ongoing)
Total Estimated Time: 20-26 hours
- Complete low priority tasks (LOW-001, LOW-002, LOW-003)
- Focus on code quality, testing infrastructure, and monitoring
- Ensure system stability during these changes
Success Metrics
Overall goals for the security audit fix implementation:
- Zero integer overflow vulnerabilities in critical code paths
- No unhandled errors in lifecycle management
- Proper memory security for private keys
- Elimination of race conditions in concurrent code
- Robust protection against cross-chain replay attacks
- Enhanced rate limiting and input validation
- Secure handling of sensitive information in logs
- Improved code quality and test coverage
- Comprehensive monitoring and observability of security events
Each detailed plan contains specific success metrics for its respective area.