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Learn Linux — Write-up

Learn Linux — Write-up

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TryHackMe Walkthrough Link: https://tryhackme.com/room/zthlinux Learn Linux is a great introductory room from Paradox. As the name suggests, it gives a nice foundation for Linux skills. This is a walkthrough room, so I’m not going to go into a huge amount of detail about the concepts themselves — I’ll leave that in Pars’ capable hands. Instead I’m going to be focusing on the questions, and how to answer them. By this token, I will be bypassing the tasks which don’t actually…

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NoName CTF — Write-up

NoName CTF — Write-up

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TryHackMe Challenge Link: https://tryhackme.com/room/nonamectf NoName CTF is a great little CTF from stuxnet. It provides a really nice introduction to some often lesser-used topics in challenge boxes, including SSTI and BOF, making this a perfect box to get some practice in on! Without further ado, let’s begin! Enumeration As per normal, we’re going to begin this challenge with an nmap scan: We’ve got four ports open here. Nothing unusual about port 22 — just SSH as normal. We can’t bruteforce that…

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Willow CTF — Write-up

Willow CTF — Write-up

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TryHackMe Challenge Link: https://tryhackme.com/room/willow Willow is the third box I’ve written, but the second to be publicly released. The first two — Jack-Of-All-Trades and Year of the Rabbit — were both designed for specific events, but they will hopefully be released on TryHackMe in due course. This particular box was designed when I was in a very specific frame of mind, which is reflected in the slightly ethereal nature of the theme. Brownie points if anyone can identify where the…

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CherryBlossom CTF — Write-up

CherryBlossom CTF — Write-up

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TryHackMe Challenge Link: https://tryhackme.com/room/cherryblossom CherryBlossom is my fourth CTF Challenge Box. It focuses heavily on cryptography and file manipulation, but also contains lateral movement and a privesc once the machine itself is compromised. Let’s begin. Initial Enumeration: We start, as always, with an nmap scan to see what services we have available to us: Three open ports, all standard. We have SSH running on Port 22 — there’s nothing we can do with this for now; not without at least…

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Daily Bugle — Write-up

Daily Bugle — Write-up

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Challenge Link: https://tryhackme.com/room/dailybugle Daily Bugle is a Spiderman themed box on TryHackMe. It requires some knowledge of SQLi, basic enumeration, password cracking and privilege escalation. This box is rated hard — primarily due to the relative inconsistency of the SQL injection required to get initial access. Let’s begin. Initial Enumeration: As per usual, we’re going to start with a quick nmap scan of this box. Use the following command to see what we’ve got available to us: Great — we…

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Bebop — Write-up

Bebop — Write-up

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Challenge Link: https://tryhackme.com/room/bebop Bebop is a quick box that exemplifies exactly how insecure some drone operating systems are. This box shouldn’t take very long to root — it’s really not particularly challenging (which is slightly worrying given it’s based off real drone software). Of much more interest is the overarching concept: drone hacking. If you haven’t already watched the video embedded into the THM room, I would highly recommend it; it’s really interesting (and hilarious in places). I’ll include an…

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Madness — Write-up

Madness — Write-up

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Challenge Link: https://tryhackme.com/room/madness Madness: the CTF Challenge from Optional that is true to its name. This room is infuriating; but all the more fun because of it. Madness is ranked as being easy, which is apt because as far as hacking techniques go, this box isn’t hugely difficult. In terms of puzzles, on the other hand… Well, let’s just say that Optional is an evil genius. If you would prefer to do the puzzles by yourself then I would suggest…

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LazyAdmin — Write-up

LazyAdmin — Write-up

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Challenge Link: https://tryhackme.com/room/lazyadmin LazyAdmin is a Linux challenge box on TryHackMe. Written by MrSeth6797, this room is designed to be a relatively relaxed challenge to practice with. There is nothing particularly unusual or extreme about the LazyAdmin box — which is exactly how it should be for a gentle practice challenge. Let’s get started! Enumeration: The first stage of this challenge is, as normal, enumeration. We’ll start by running a pretty standard nmap scan to see what ports are open…

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TryHackMe Christmas 2019 Challenge Write-up

TryHackMe Christmas 2019 Challenge Write-up

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Challenge Link: https://tryhackme.com/room/25daysofchristmas Day One — Inventory Management: The first part of the Christmas 2019 challenge on TryHackMe is a web application that’s vulnerable to cookie hijacking. The challenge comes with a Google Doc which covers the basics of how websites are run and how cookies work. If you’re struggling, I would suggest reading that first. So, the first challenge: If you deploy the provided VM and navigate to the URL (http://<your_machines_ip>:3000), you will be shown a login screen asking for a…

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Retro — Write-up

Retro — Write-up

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Challenge Link: https://tryhackme.com/room/retro Retro is a box from Darkstar7471 consisting of a virtual machine running a windows web server. We’re tasked with enumerating, gaining access and escalating our privileges. This write up is a snapshot from my full THM Advent Challenges write up. Let’s get started! Enumeration: If you try to enumerate this machine, you’ll notice the first of Darkstar’s little challenges designed to make this more difficult. The VM will not respond to ping requests, and will always appear…

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