Burp Suite Penetration Testing Playbook: From Interception to Automated Exploitation
A hands-on methodology for utilizing Proxy, Repeater, Intruder, and Decoder to audit web applications and APIs.
1. Configuring Burp Suite for Seamless Interception
Burp Suite is the industry-standard workbench for web application security professionals. It intercepts HTTP traffic between your testing browser and the target server.
By binding the proxy listener to `127.0.0.1:8080` and importing `http://burp/cert` into your operating system or browser trust store, you unlock the ability to inspect, modify, and replay every API call.
2. Mastering Repeater for Vulnerability Triage
Repeater is where ethical hackers spend the majority of their testing time. Instead of repeatedly clicking buttons in a browser, you forward interesting requests to Repeater (`Ctrl + R`).
In Repeater, you can strip security headers, tamper with JSON keys, append single quotes to test for SQL syntax errors, or inject HTML tags to confirm cross-site scripting reflections.
3. Automated Fuzzing with Intruder Attack Types
Sniper: Uses a single payload set. It targets each marked position sequentially, ideal for testing multiple parameters for XSS or SQLi one by one.
Battering Ram: Uses a single payload set, putting the identical payload into all marked positions simultaneously.
Pitchfork: Uses multiple payload sets, iterating through them in lockstep (e.g., matching username list line 1 with password list line 1).
Cluster Bomb: Uses multiple payload sets and tests every possible mathematical permutation (Cartesian product), essential for credential stuffing and brute-forcing.
POST /api/v1/auth/login HTTP/1.1
Host: target.cyberlium.local
Content-Type: application/json
Content-Length: 54
{
"username": "admin",
"password": "§password_payload§"
}4. Professional Reporting and Ethics
Always restrict your Burp Suite target scope (`Target -> Scope`) strictly to domains authorized in your Rules of Engagement.
Capture raw HTTP request and response pairs from Burp as reproducible proof-of-concept (PoC) artifacts in your final vulnerability report.