Session Hijacking
Learn how attackers take control of active sessions and methods to protect sensitive connections.
Session Hijacking is a free Ethical Hacking Academy lesson on CoddyKit — lesson 2 of 3. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Ethical Hacking Academy learning path, one of 3 lessons in the course, and your progress syncs across the web and the CoddyKit app.
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Welcome to Session Hijacking
Session hijacking is an attack where an attacker takes control of a user’s session on a network.
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What is Session Hijacking?
It occurs when an attacker steals or predicts a session token to gain unauthorized access.
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Types of Session Hijacking
- Active Hijacking - The attacker takes control of an active session.
- Passive Hijacking - The attacker listens to network traffic without interfering.
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Common Session Hijacking Techniques
- Session Fixation - The attacker forces a user to use a known session ID.
- Session Sidejacking - Intercepts session tokens over insecure networks.
- Man-in-the-Middle (MITM) - Attacker intercepts and modifies communication between two parties.
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Using Wireshark for Session Hijacking
Wireshark can capture session cookies and network traffic.
wireshark -i eth0 -k6
Using Ettercap for MITM Attacks
Ettercap can be used to intercept and modify network traffic.
ettercap -T -M arp:remote /victim_ip// /gateway_ip//7
Defending Against Session Hijacking
- Use HTTPS for secure communication.
- Enable multi-factor authentication (MFA).
- Use secure session management techniques.
- Regenerate session IDs after login.
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Detecting Session Hijacking
- Monitor session logs for unusual activity.
- Use endpoint security tools.
- Alert users to unexpected logins.
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Summary
Session hijacking involves stealing session tokens to gain unauthorized access. Implementing strong security measures can help prevent attacks.
Frequently asked questions
Is the “Session Hijacking” lesson free?
Yes — the full text of “Session Hijacking” is free to read here on the web, and the Ethical Hacking Academy course includes 3 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Ethical Hacking Academy course, upgrade to CoddyKit PRO.
What will I learn in “Session Hijacking”?
Learn how attackers take control of active sessions and methods to protect sensitive connections. You practise Ethical Hacking Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Ethical Hacking Academy?
No prior experience is required. Ethical Hacking Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 2 of 3, so you can start here or from the beginning and move at your own pace.
How long does the “Session Hijacking” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Ethical Hacking Academy lesson?
Yes. Every Ethical Hacking Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Sniffing Techniques
- Session Hijacking
- IDS/IPS Evasion