Because the tooling for this box is so different I’ll show it from both Linux and Windows attack systems. I’ll reverse those to find a deserialization vulnerability, and exploit that to get a shell as SYSTEM. From there, I’ll get some more creds, and use those to get access to a share with some custom dot net executables. I’ll kerberoast and get a challenge/response for a service account, and use that to generate a silver ticket, getting access to the MSSQL instance. I’ll find user creds with hints from the page, and get some more hints from a file share. NTLM authentication is disabled for the box, so a lot of the tools I’m used to using won’t work, or at least work differently. There are some hints on a webpage, and from there the exploitation is all Windows. Scrambled presented a purely Windows-based path. Htb-scrambled ctf hackthebox kerberos deserialization windows silver-ticket reverse-engineering The host has a cron running Git commands as root, so I’ll use git hooks to abuse this and get a shell as root. From there, I’ll access a private Gitea instance and find an SSH key to get a shell on the host.

The later is overwriting one of the Flask source files to get execution. The first is abusing the file read to get the information to calculate the Flask debug pin. The website has a directory traversal vulnerability that allows me to read and write files.

That zip has a Git repo in it, and that leaks the production code as well as account creds. OpenSource starts with a web application that has a downloadable source zip. Ctf hackthebox htb-opensource nmap upload source-code git git-hooks flask directory-traversal file-read flask-debug flask-debug-pin youtube chisel gitea pspy

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