Rate Limiting Bypass
Bypassing rate limiting and throttling mechanisms
Key Concepts
Security Mindset
Think like an attacker - what can go wrong, what can be abused?
Defense in Depth
Multiple layers of security controls, no single point of failure.
Least Privilege
Grant minimum permissions needed for functionality.
Trust Boundaries
Identify where data crosses trust levels and validate at each boundary.
Learning Material
What You'll Learn
Bypassing rate limiting and throttling mechanisms
Think like an attacker - what can go wrong, what can be abused?
Multiple layers of security controls, no single point of failure.
Grant minimum permissions needed for functionality.
Identify where data crosses trust levels and validate at each boundary.
API Security Research
Purpose: Deep understanding of API vulnerabilities for bug bounty hunting
Priority: HIGH (API testing is core to modern bug bounty)
Last Updated: December 28, 2025
Contents
Core Concepts
- REST API Security
- GraphQL Security
- WebSocket Security
Attack Techniques
- REST API Attacks
- GraphQL Attacks
- WebSocket Attacks
- Rate Limiting Bypass
Case Studies
- Case Studies Index
Quick Reference
OWASP API Security Top 10 (2023)
| Rank | Vulnerability | Your Agent |
|---|---|---|
| API1 | Broken Object Level Authorization | h1-auth-agent |
| API2 | Broken Authentication | h1-auth-agent |
| API3 | Broken Object Property Level Authorization | h1-api-agent |
| API4 | Unrestricted Resource Consumption | h1-api-agent |
| API5 | Broken Function Level Authorization | h1-auth-agent |
| API6 | Unrestricted Access to Sensitive Business Flows | h1-race-agent |
| API7 | Server Side Request Forgery | h1-api-agent |
| API8 | Security Misconfiguration | h1-hunter-agent |
| API9 | Improper Inventory Management | h1-recon-agent |
| API10 | Unsafe Consumption of APIs | h1-api-agent |
Testing Priority
| Attack Type | Payout Range | Difficulty |
|---|---|---|
| IDOR via API | $5K-$50K | Medium |
| GraphQL Injection | $3K-$15K | Medium |
| Mass Assignment | $1K-$5K | Easy |
| Rate Limit Bypass | $500-$3K | Easy |
| SSRF via API | $5K-$20K | Medium |
Navigation
- Previous: 01_auth_and_access
- Next: 03_race_and_logic
- Main: Knowledge Base README
Practical Examples
Practice examples coming soon. Check the Certs section for related labs.
Test Questions
What is OWASP API Top 10?
How do you enumerate API endpoints?
What is excessive data exposure in APIs?
Test Your Knowledge
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What is OWASP API Top 10?
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How do you enumerate API endpoints?
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What is excessive data exposure in APIs?
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