Bug Bounty Bootcamp Review & Web Security Guide

Web security aur application penetration testing sikhne ke liye Vickie Li dwara likhi gayi book “Bug Bounty Bootcamp: The Guide to Finding and Reporting Web Vulnerabilities” (No Starch Press) ek sabse comprehensive aur practical resource mani jaati hai.

Aaj ke is article mein hum baat karenge ki is book mein konse core web security concepts explain kiye gaye hain, Cross-Site Scripting (XSS), SQL Injection (SQLi), aur SSRF jaise bugs ko kaise identify aur report kiya jata hai.

Key Web Vulnerabilities Explained

1. Cross-Site Scripting (XSS)

XSS vulnerability tab paida hoti hai jab ek web application user input ko bina sahi validation ya sanitization ke browser mein render kar deti hai. Isse attacker victim ke browser mein malicious JavaScript execute kar sakta hai aur session tokens ya cookies steal kar sakta hai.

2. Server-Side Request Forgery (SSRF)

SSRF vulnerability mein attacker server ko majboor karta hai ki woh kisi arbitrary ya internal IP address (jaise 167.172.x.x ya localhost) par HTTP requests bheje. Iska istemal internal network infrastructure ko scan karne aur cloud metadata access karne ke liye kiya jata hai.

3. Insecure Direct Object References (IDOR)

IDOR tab hota hai jab application user-provided input ka istemal karke objects (jaise files, database records) ko direct access karti hai bina proper authorization check kiye. Example: URL mein `user_id=101` ko badal kar `user_id=102` karne par kisi aur ka data dikhna.