Ethical Hacking Essentials Practice Test

Which type of attack uses information from a compromised system to gain access to another system using Kerberos?

1. Pass the hash

2. Pass the ticket

3. Session fixation

4. Credential harvesting

The correct answer is: Pass the ticket

The most fitting response highlights the "Pass the Ticket" attack as the technique that leverages information from a compromised system to access another system utilizing Kerberos authentication. In a "Pass the Ticket" attack, an attacker captures a valid Kerberos ticket from a compromised machine. This ticket is issued by the Key Distribution Center (KDC) in the Kerberos authentication framework and allows users to authenticate themselves to services on a network without repeatedly supplying their credentials. Once the attacker has the ticket, they can use it to impersonate the original user and gain unauthorized access to other services or systems on the network that are protected by Kerberos, thus effectively bypassing normal authentication processes. Understanding this method is crucial as it emphasizes the vulnerabilities within the Kerberos protocol and the potential consequences of compromised systems. Other options pertain to different types of attacks or exploits that do not specifically utilize Kerberos tickets to gain access, such as leveraging hashed passwords or fixing session identifiers after a user has already authenticated.