Seal
Seal is a Medium rated Linux machine that tests an attacker on their ability to enumerate Git repositories, bypass reverse proxy restrictions and exploit misconfigurations in automation software.
Compromised
This is a Hard rated Linux machine that primarily focuses on an attacker’s enumeration skills as well as some basic reverse engineering knowledge.
Tenet
This is a Medium rated Linux machine that focuses on an attacker’s enumeration skills and understanding on the concepts of PHP deserialisation as well as race conditions.
Delivery
This is an Easy rated Linux machine that focuses on an attacker’s enumeration skills, requiring one to gain access to a chat service which contains credentials and other key information, allowing an attacker establish a foothold and escalate privileges later on.