Keeper - Hack The Box
Keeper is a machine of HTB. The machine has a Website with nginx WAF, for this reason has access limited, later u can join to the system with default credentials, later get the password of an user lisa for the connection ssh, later download the .dmp file and recovery old session, next using the old session with private-openssh ssh service join like root.
Nginx HTTP SSH Nginx WAF dmp credentials Privilege Escalation Vulnerable and Outdated Components A06:2021