backend

ArcaneLink - Challenge Backend

The backend is composed of two modules:

• backend: the virtual machine manager, responsible for managing sessions and their associated users inside each virtual machine.
• server: a simple TCP server exposed to the outside, which will accept connections and talk to the backend through a TCP connection.

Connecting to the service

First, request a new temporary token from the token server at /token?target=<target_ip>:

curl 'http://<token-server-endpoint>/token?target=<target_ip>

Note that the token returned by the token server is a JSON string and therefore enclosed in double quotes ("), which must be stripped.

Then use the token to authenticate with the service running on the vulnbox at <target_ip>.

$ nc <target_ip> 1337
Token: <enter token here>
...