167 lines
4.6 KiB
Markdown
167 lines
4.6 KiB
Markdown
# 🚨 Critical Security Fixes Required
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**BLOCKING PRODUCTION DEPLOYMENT**
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## 🔴 Critical Issue #1: Hardcoded Secrets
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### Problem
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- Default encryption keys in source code
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- Private key references in configuration
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- Environment variables with default values
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### Files to Fix
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- `.env.example` - Remove default encryption key
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- `pkg/security/config.go` - Remove hardcoded defaults
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- All configuration files with sensitive defaults
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### Solution
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```bash
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# Remove hardcoded values
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grep -r "MEV_BOT_ENCRYPTION_KEY.*test123" . --exclude-dir=.git
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grep -r "default_private_key" . --exclude-dir=.git
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# Implement proper secrets management
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export MEV_BOT_ENCRYPTION_KEY="" # Force user to set
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export PRIVATE_KEY_PATH="" # Force user to set
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```
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## 🔴 Critical Issue #2: Missing Access Controls
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### Problem
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- No authentication on key access methods
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- Missing authorization checks
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- No audit logging for sensitive operations
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### Files to Fix
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- `pkg/security/keymanager.go:145-180`
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- `pkg/arbitrage/executor.go:160-180`
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### Solution
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```go
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// Add authentication middleware
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func (km *KeyManager) GetActivePrivateKey() (*ecdsa.PrivateKey, error) {
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// MUST ADD: Authentication check
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// MUST ADD: IP whitelist validation
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// MUST ADD: Rate limiting
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// MUST ADD: Audit logging
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return km.getActivePrivateKeyInternal()
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}
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```
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## 🔴 Critical Issue #3: Race Conditions
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### Problem
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- Concurrent access to shared state without locking
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- Counter updates without atomic operations
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- Inconsistent state in service statistics
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### Files to Fix
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- `pkg/arbitrage/service.go:680-720`
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- `pkg/arbitrage/live_execution_framework.go`
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### Solution
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```go
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// Add proper synchronization
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type ArbitrageService struct {
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// ...existing fields...
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statsMutex sync.RWMutex // ✅ Already present
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// MUST ADD: Proper locking around ALL shared state access
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}
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```
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## 🔴 Critical Issue #4: Incomplete Implementation
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### Problem
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- Hardcoded 5% profit in simulations
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- Missing real market data integration
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- Static gas estimations
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### Files to Fix
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- `pkg/arbitrage/executor.go:440-442`
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- `pkg/math/arbitrage_calculator.go`
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### Solution
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```go
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// Replace this:
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simulation.Profit = new(big.Int).Mul(params.AmountIn, big.NewInt(105)) // 5% profit
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simulation.Profit = new(big.Int).Div(simulation.Profit, big.NewInt(100))
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// With real calculation:
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realProfit, err := ae.calculateRealProfit(ctx, params)
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if err != nil {
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return nil, fmt.Errorf("profit calculation failed: %w", err)
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}
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simulation.Profit = realProfit
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```
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## 🔴 Critical Issue #5: Contract Security
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### Problem
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- No contract address verification
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- Missing bytecode validation
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- No protection against malicious contracts
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### Files to Fix
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- `pkg/arbitrage/executor.go`
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- Add new `pkg/security/contract_validator.go`
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### Solution
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```go
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// Add contract verification
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func (ae *ArbitrageExecutor) verifyContract(address common.Address, expectedBytecodeHash string) error {
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bytecode, err := ae.client.CodeAt(context.Background(), address, nil)
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if err != nil {
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return fmt.Errorf("failed to get contract bytecode: %w", err)
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}
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actualHash := crypto.Keccak256Hash(bytecode).Hex()
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if actualHash != expectedBytecodeHash {
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return fmt.Errorf("contract bytecode mismatch: expected %s, got %s", expectedBytecodeHash, actualHash)
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}
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return nil
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}
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```
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## ⚡ Quick Fix Script
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```bash
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#!/bin/bash
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# Run this script to identify all critical security issues
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echo "🔍 Scanning for critical security issues..."
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echo "1. Checking for hardcoded secrets..."
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grep -r "test123\|default_key\|changeme" . --exclude-dir=.git
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echo "2. Checking for missing authentication..."
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grep -r "GetActivePrivateKey\|SignTransaction" pkg/ -A 5 -B 5
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echo "3. Checking for race conditions..."
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grep -r "statsMutex\|Lock\|Unlock" pkg/ | grep -v "defer"
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echo "4. Checking for hardcoded values..."
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grep -r "big.NewInt(105)\|5% profit" pkg/
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echo "5. Checking for missing contract validation..."
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grep -r "NewArbitrageExecutor\|common.HexToAddress" pkg/ | head -10
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echo "🚨 CRITICAL: Address all findings before production deployment!"
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```
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## ✅ Verification Checklist
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Before production deployment, verify:
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- [ ] No hardcoded secrets in any file
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- [ ] Authentication required for all key operations
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- [ ] All shared state access is properly synchronized
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- [ ] Real profit calculations implemented
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- [ ] Contract addresses verified and validated
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- [ ] Comprehensive audit logging enabled
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- [ ] Rate limiting implemented
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- [ ] Integration tests pass with real market data
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- [ ] Security penetration testing completed
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- [ ] Emergency stop mechanisms tested
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**🔒 Status: BLOCKING - Must complete all items before production** |