Feature Request: Security Headers Analyzer with Compliance Scoring

[IbnB]

Summary

Add a Security Headers analyzer that provides real-time evaluation of HTTP security headers, visual compliance scoring, and actionable remediation guidance directly within rep+.

Problem Statement

Currently, rep+ captures and displays response headers but doesn't analyze their security implications. Security researchers and developers must manually verify each header against best practices, which is time-consuming and prone to oversight. This feature would automatically identify missing or misconfigured security headers that could leave applications vulnerable.

Proposed Solution

Core Functionality

• Automatic Analysis: Evaluate security headers on every captured response
• Visual Scoring: Display security grade (A+ to F) with color-coded indicators
• Issue Detection: Identify missing critical headers and misconfigurations
• Actionable Guidance: Provide specific remediation steps for each finding

Headers to Analyze

• Content-Security-Policy (CSP) - XSS protection
• Strict-Transport-Security (HSTS) - Force HTTPS
• X-Frame-Options - Clickjacking protection
• ** CSP frame-ancestors
• X-Content-Type-Options - MIME sniffing prevention
• Referrer-Policy - Information leakage control
• Permissions-Policy - Feature restrictions
• X-XSS-Protection - Legacy XSS filter (deprecated but checked)
• ** Cookie security headers
• ** CORS, COOP, COEP,
• **Other security headers etc.

UI/UX Mockup

RESPONSE → Headers | Security Analysis [NEW TAB]

Security Score: B- (75/100) 🔒
━━━━━━━━━━━━━━━━━━━━━
✅ HSTS: max-age=31536000
⚠️  CSP: Contains ‘unsafe-inline’
❌ X-Frame-Options: Missing
❌ X-Content-Type-Options: Missing

[View Details] [Export Report] [Copy Remediation]

Scoring Algorithm Outline

Base Score: 100 points
Deductions:

- Missing CSP: -20 points
- Missing HSTS: -15 points
- Missing X-Frame-Options: -10 points
- Weak CSP (unsafe-inline/eval): -15 points
- Short HSTS duration (<1 year): -10 points
- Missing other headers: -5 points each

Grades:
A+ (95-100) | A (90-94) | B (80-89) | C (70-79) | D (60-69) | F (<60)

Technical Requirements

Data Structure

{
  url: "https://example.com/api",
  timestamp: "2024-12-22T10:00:00Z",
  score: 75,
  grade: "B-",
  findings: {
    present: [
      {
        header: "Strict-Transport-Security",
        value: "max-age=31536000",
        status: "secure",
        message: "HSTS properly configured"
      }
    ],
    missing: ["Content-Security-Policy", "X-Frame-Options"],
    warnings: [
      {
        header: "Referrer-Policy",
        value: "unsafe-url",
        message: "Leaks full URL to external sites"
      }
    ]
  },
  recommendations: [
    {
      header: "Content-Security-Policy",
      priority: "high",
      fix: "Content-Security-Policy: default-src 'self'; script-src 'self';"
    }
  ]
}

Export Options

• JSON: Full analysis data for automation
• Markdown: Human-readable report for documentation
• CSV: Summary for multiple endpoints

Integration Points

With Existing Features

1. Request List: Add security indicator icon next to each request
2. Bulk Operations: “Analyze All” button for captured requests
3. Response Tabs: New “Security” tab alongside Pretty/Raw/Hex/JSON/Preview
4. Export Function: Include security analysis in request export

Future Enhancements

• Compare headers across different endpoints
• Track security score changes over time
• Custom security policies for specific compliance needs
• Integration with report generator for vulnerability documentation

User Stories

As a Security Researcher

I want to quickly identify missing security headers so I can report configuration vulnerabilities efficiently.

As a Developer

I want real-time feedback on security headers while testing my application so I can fix issues before deployment.

As a Compliance Auditor

I want to generate security header compliance reports so I can document an application’s security posture.

Benefits

• Efficiency: Instant security analysis without external tools
• Education: Learn security best practices through actionable recommendations
• Quality: Improve bug bounty report quality with detailed header analysis
• Compliance: Verify applications meet security standards (OWASP, PCI-DSS)

Implementation Considerations

Performance

• Analysis should be async to not block UI
• Cache analysis results for identical header sets
• Batch analysis should process requests incrementally

Storage

• Store analysis history in IndexedDB
• Allow users to save/load security profiles
• Export analysis data with request history

Customization

• Allow custom scoring weights
• Support user-defined required headers
• Enable/disable specific checks

Success Criteria

• Analyzes headers in <100ms per response
• Provides actionable remediation for each finding
• Generates exportable compliance reports
• Integrates seamlessly with existing UI
• Maintains current performance standards

References

• OWASP Secure Headers Project
• MDN Web Docs - HTTP Headers
• SecurityHeaders.com - Similar web-based tool
• Mozilla Observatory - Reference implementation

Note

PS - This is a fundamental security feature that would benefit all rep+ users and differentiate it from similar tools.

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