Bastion is an easy 20 points machine on hackthebox. It is about mounting a .vhd file over the network, retrieving password hashes from backups (via SAM) and a privilege escalation that involves stored credentials in mRemoteNG.
Arkham was a surprisingly hard box for the 30 points that were awarded for it, as I was struggling quite a bit, especially for the user part. However in the end i enjoyed the box a lot because it forced me to use stuff I don't encounter often and therefore...
Helpline is a really fun box on hackthebox.eu, which I was lucky enough to get system first blood on :) Weirdly enough I couldn't get the user first blood - but more to that later.
Ethereal is a machine on hackthebox.eu that awards 50 points, the highest possible score/difficulty and requires some really fun techniques, teaching me several new things along the way. It features extracting files from a disk image, password guessing, blind command injection, openssl reverse shells, msi backdooring & signing of executables...
This post is based on this article from google project zero. For more details please read their awesome post, I will just give a brief overview.
In this short writeup I will show how I completed Access on hackthebox.eu, a quite easy windows box that involves parsing credentials from ms office files, converting mail formats and accessing saved windows credentials.
In this post I will give a quick walkthrough on Giddy from hackthebox.eu. The machine involves (automated) sql injection, stealing ntlm hashes via sqli and the exploitation of vulnerable service for which a CVE exists.
Control is a 40-point windows machine on hackthebox that involves a sql injection which we use to upload a webshell. Then we modify the path of a service executable in the registry to become system.