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This year’s HACKvent hosted on competition.hacking-lab.com has been as great as every year. There was a total amount of 28 awesome challenges with varying difficulties. |
Hack The Box – Rope
This article contains my writeup on the machine Rope from Hack The Box. I really enjoyed the box, since it provides a total of three custom binaries, which are supposed to be exploited 🙂
The article is divided into the following parts:
→ User
    – Initial Recon
    – httpserver
    – Leak Memory Address
    – Exploit Format String Vulnerability
    – Escalating from john to r4j (readlogs)
→ Root
    – Local Recon
    – contact
    – Bruteforce
    – Libc Leak
    – Final Exploit
HACKvent19 writeup
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This year’s HACKvent was hosted on the brand new Hacking-Lab 2.0 plattform. Each day from the 1st of december until the 24th a new challenge is published raising in difficulty. The flag format changed from HV18-xxxx-xxxx-xxxx-xxxx-xxxx to HV19{...}. After all I managed to solve all 28 challenges 🙂 |
Google CTF 2019 (Quals) – Quantum Key Distribution
This years online qualification for the Google Capture The Flag finals (ctftime.org) ran from 22/06/2019, 00:01 UTC to 23/06/2019 23:59 UTC.
As last year, there were plenty of diversified challenges, which were worked out very well.
I tried to take at least a look at as much challenges as possible and solved the challenge Quantum Key Distribution, which was relatively easy based on the amounts of solves. Within this article I want to share my writeup on this challenge.
The writeup is divided into the following sections:
Continue reading “Google CTF 2019 (Quals) – Quantum Key Distribution”VolgaCTF 2019 Qualifier – Blind
The VolgaCTF 2019 Qualifier (ctftime.org) took place from 29/03/2019, 15:00 UTC to 31/03/2019 15:00 UTC.
There has been a really interesting RSA crypto challenge called Blind, which I would like to share with you in this writeup.
The article is divided into the following sections:
→ Challenge description
→ What does the script do?
→ Blind RSA Signature
→ Retrieving the Flag