session fixation

Session Fixation is an attack that permits an attacker to hijack a valid user session. The attack explores a limitation in the way the web application manages the session ID, more specifically the vulnerable web application.

1. What is an example of a session fixation attack?
2. What is session fixation and session hijacking difference?
3. What is Session fixation in Java?
4. What is an example of a session related vulnerability?
5. What is Session fixation protection?
6. What is Session fixation in security?
7. How is session hijacking done?
8. What is weak session ID attack?
9. When would an attacker want to begin a session hijacking attack if session fixation is being used?
10. Does SSL prevent session hijacking?
11. What is Session ID rotation?
12. Which of the following can be used to prevent attacks on Session ID?

What is an example of a session fixation attack?

A typical scenario involves the attacker prompting their victim into clicking on a link which directs them to sign in, while also supplying a Session ID. The server accepts the Session ID, and populates the session with information about the authenticated user.

What is session fixation and session hijacking difference?

In the session hijacking attack, the attacker attempts to steal the ID of a victim's session after the user logs in. In the session fixation attack, the attacker already has access to a valid session and tries to force the victim to use that particular session for his or her own purposes.

What is Session fixation in Java?

Session Fixation is a type of vulnerability, where the attacker can trick a victim into authenticating in the application using Session Identifier provided by the attacker. Unlike Session Hijacking, this does not rely on stealing Session ID of an already authenticated user.

What is an example of a session related vulnerability?

Session Variable Example

If a user called Alice logged in, she would be greeted with “Hello Alice”. If Bob was logged in at the same time and opened the same page, he would see “Hello Bob” instead. The session variable is available across different files and isn't restricted to file it is declared in.

What is Session fixation protection?

Session fixation is a vulnerability caused by incorrectly handling user sessions in a Web application. ... The problem occurs when this cookie does not change for the duration of the browsing session; users authenticate and log out, but their session cookie remains the same.

What is Session fixation in security?

Description. Session Fixation is an attack that permits an attacker to hijack a valid user session. ... The session fixation attack is a class of Session Hijacking, which steals the established session between the client and the Web Server after the user logs in.

How is session hijacking done?

Session hijacking is an attack where a user session is taken over by an attacker. ... To perform session hijacking, an attacker needs to know the victim's session ID (session key). This can be obtained by stealing the session cookie or persuading the user to click a malicious link containing a prepared session ID.

What is weak session ID attack?

Weak session IDs can expose your users to having their session hijacked. If your session IDs are picked from a small range of values, an attacker only needs to probe randomly chosen session IDs until they find a match.

When would an attacker want to begin a session hijacking attack if session fixation is being used?

When would an attacker want to begin a session hijacking attack if session fixation is being used? You would like to attempt a man-in-the-middle attack to take control of an existing session.

Does SSL prevent session hijacking?

For example, using HTTPS completely prevents against sniffing-type session hijacking, but it won't protect if you click a phishing link to a cross-site scripting attack (XSS) or use easily guessable session IDs. A combination of proper security measures and effective training is the only surefire way to stay safe.

What is Session ID rotation?

Session rotation basically consists of: Deleting the user's current session. Creating a new session containing the same data, but with a different ID.

Which of the following can be used to prevent attacks on Session ID?

End-to-end encryption between the user's browser and the web server using secure HTTP or SSL, which prevents unauthorized access to the session ID. VPNs can also be used to encrypt everything, not just the traffic to the webserver using personal VPN solution tools.