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DCTF2019 – Secret

DCTF2019 – Secret

This is the second PWN challenge of the DefCamp CTF 2019 Qualification round. This challenge involved an ASLR, DEP, and Stack Canary bypass using a format string vulnerability and a buffer overflow vulnerability. We are supplied a binary and an IP and port. We start...
HTB – Help Writeup

HTB – Help Writeup

HackTheBox Dificulty Rating 43% 43% OS: Linux Points: 20 Release date: 19 Jan 2018 This box was fairly straight forward. The user part has to do with an unauthenticated file upload found when submitting a ticket on the web application. The tricky part is making a...
PlaidCTF – Everland

PlaidCTF – Everland

I really enjoyed this challenge during Plaid CTF even though we didn’t end up getting the flag because of a minor mistake as I will explain below. I spent a few precious hours on this challenge and did everything (well, mostly) right the first time and all indications...
HTB – Frolic Writeup

HTB – Frolic Writeup

HackTheBox Dificulty Rating 55% 55% OS: Linux Points: 20 Release date: 13 Oct 2018 Even though the user part was very CTF like, having to decode multiple esoteric languages and being directed this way and that through the application filesystem, the privesc ended up...
HTB – Carrier Writeup

HTB – Carrier Writeup

HackTheBox Dificulty Rating 51% 51% OS: Linux Points: 30 Release date: 22 Sep 2018 This was just an amazing box and probably my favorite one so far. For the user part we had to log in to a web application by finding a directory listing with some clues on what the box...
HTB – Zipper Writeup

HTB – Zipper Writeup

HackTheBox Dificulty Rating 52% 52% OS: Linux Points: 40 Release date: 2o Oct 2018 This was a pretty cool box, even if I had a bit of a problem when trying to get a stable reverse shell that made me leave the box alone for a few months until coming back to it and...