Web Security: Common Vulnerabilities And Their Mitigation - Session hijacking using session fixation

The video tutorial explains session fixation, a security vulnerability where attackers set a session ID for a user, allowing them to impersonate the user. It discusses how attackers exploit this vulnerability by sending links with fixated session IDs and highlights the importance of generating new session IDs upon login. The tutorial also covers the limitations of server-generated session IDs and the risks of cross sub-domain cookies, emphasizing the need for robust security practices to prevent session fixation attacks.

What is session fixation and how does it allow an attacker to gain access to a user's session?

Explain how a web server can be vulnerable to session fixation.

Describe the process an attacker might use to exploit a vulnerable bank site.

What are the implications of a bank site accepting client-specified session IDs?

Discuss the limitations of only accepting server-generated session IDs as a security measure.

How can an attacker use a server-generated session ID to fixate a victim's session?

What is a cross sub-domain cookie and how can it be exploited in session fixation attacks?