smom-dbis-138/docs/security/SECURITY_SCORES.md

Security Score Interpretation

Overview

This document explains how to interpret security scores from various scanning tools.

SolidityScan Scores

Score Range: 0-100

90-100 (Excellent)

• Production ready
• Minimal security risks
• Follows best practices
• No critical vulnerabilities

70-89 (Good)

• Minor improvements recommended
• Some security concerns
• Should address medium-severity issues
• Generally safe for production

50-69 (Fair)

• Should address issues before production
• Multiple security concerns
• Review high-severity issues
• Consider security audit

0-49 (Poor)

• Must fix before production
• Critical security vulnerabilities
• Significant security risks
• Requires immediate attention

Common Vulnerabilities

Critical (Score Impact: -20 to -50)

1. Reentrancy: Unauthorized external calls
2. Integer Overflow: Arithmetic operations
3. Access Control: Unauthorized access
4. Unchecked External Calls: Missing error handling

High (Score Impact: -10 to -20)

1. Gas Optimization: Inefficient code
2. Timestamp Dependence: Block timestamp usage
3. Front-running: Transaction ordering
4. Denial of Service: Resource exhaustion

Medium (Score Impact: -5 to -10)

1. Code Quality: Best practices
2. Documentation: Missing comments
3. Error Handling: Incomplete error handling
4. Event Logging: Missing events

Low (Score Impact: -1 to -5)

1. Naming Conventions: Style issues
2. Code Duplication: Repeated code
3. Unused Variables: Dead code
4. Style Issues: Formatting

Improving Scores

Quick Wins

1. Fix Critical Issues: Address reentrancy, overflow
2. Add Access Control: Implement proper permissions
3. Error Handling: Add require/assert statements
4. Events: Emit events for important actions

Medium-Term

1. Code Review: Regular security reviews
2. Testing: Comprehensive test coverage
3. Documentation: Document security decisions
4. Best Practices: Follow Solidity best practices

Long-Term

1. Security Audits: Regular professional audits
2. Formal Verification: Mathematical proofs
3. Bug Bounties: Community security testing
4. Continuous Improvement: Ongoing security work

Score Tracking

Baseline

Establish baseline scores for:

• New contracts: Target 90+
• Existing contracts: Improve gradually
• Critical contracts: Must be 95+

Trends

Monitor score trends:

• Improving: Good progress
• Stable: Maintain current level
• Declining: Investigate and fix

Goals

Set score goals:

• Q1: Average score 80+
• Q2: Average score 85+
• Q3: Average score 90+
• Q4: Average score 95+

Integration with CI/CD

Score Thresholds

Set minimum score thresholds:

# In CI/CD pipeline
- name: Check Security Score
  run: |
    SCORE=$(solidityscan --api-key $API_KEY --project-path . --format json | jq '.score')
    if [ $SCORE -lt 80 ]; then
      echo "Security score $SCORE is below threshold 80"
      exit 1
    fi

Blocking Deployments

Block deployments if:

• Score < 70 for critical contracts
• Score < 80 for new contracts
• Critical vulnerabilities present

Reporting

Dashboard

View scores in:

• SolidityScan dashboard
• Blockscout UI
• CI/CD reports
• Security dashboard

Alerts

Set up alerts for:

• Score drops below threshold
• New critical vulnerabilities
• Score improvements
• Scan failures

References

• SolidityScan Documentation
• Security Scanning Process
• Security Best Practices