Source to Sink: Core Penetration Testing Approach
🎯 1. Investigating Blind Spots in Authenticated Areas 🚩 Source: Parameters in authenticated functionality ⚠️ Sink: Privileged operations user_id = request.form['user_id'] # 🚩 Source db.execute(f"DELETE FROM users WHERE id = {user_id}") # ⚠️ Sink 🔗 Attack Flow: Source → Privilege bypass → Sink 🧼 2. Input Sanitization Analysis 🚩 Source: User input fields ⚠️ Sink: Rendering functions const userComment = req.body.comment; // 🚩 Source const sanitized = userComment.replace('<script>', ''); // 🛑 Vulnerable res.send(`<div>${sanized}</div>`); // ⚠️ Sink 🔗 Attack Vector: Source → Weak sanitization → Sink ...