Emulated shell module in Amun

[kdpkst]

hi, I recently deployed Amun on my own virtual machines for some security tests and I noticed that there is an emulated shell in Amun. I tried to simulate attacks on Amun to get the shell but all the existing exploits I used in Metasploit seems failed. I just wanna know What can I do to acquire the shell because I don't know if only some specific emulated vulnerabilities in Amun are bound to the shell? Thanks for your help!