Hackthebox - Health
Author: irogir
HackTheBox - Moderators is a Hard Linux machine that features a PHP web application that uses a library which is
vulnerable to file upload using which we can get a code execution by uploading a php file. Later we can find a Dev Version of the same application which is a wordpress application and had brandfolder plugin which was vulnerable to an LFI. using which we can upload a custom wp_load.php and execute to get user lexi. Updating wp admin credential we can get john user. From there it was all about mounting an encrypted vdi and getting root credential.
HackTheBox - Trick was a easy Linux machine created by Geiseric. It starts starts with some enumeration to find a virtual host. There’s an SQL injection that allows bypassing the authentication, and reading files from the system. That file read leads to another subdomain, which has a file include. I’ll show how to use that LFI to get execution via mail poisoning, log poisoning, and just reading an SSH key. To escalate to root, I’ll abuse fail2ban.
Faculty is a medium Linux machine that features a PHP web application that uses a library which is
vulnerable to local file inclusion. Exploiting the LFi in this library reveals a password which can be used to log
in as a low-level user called gbyolo over SSH. The user gbyolo has permission to run an npm package
called meta-git as the developer user. The version of the meta-git installed on this box is vulnerable to
code injection, which can be exploited to escalate the privileges to the user developer . The privilege
escalation to root can be performed by exploiting the CAP_SYS_PTRACE capability to inject shellcode into a
process running as root .