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HTB Christmas CTF – Toy Workshop
Overview Toy Workshop was a 1 star rated ‘Web’ challenge from the HackTheBox “Cyber Santa is Coming to Town” CTF. This was an interesting challenge, with the flag coming from a blind stored-XSS which led to the leakage of the flag from a cookie value in a Puppeteer instance. After that mouthful, lets take a […]
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AD CS – The ‘Certified Pre-Owned’ Attacks
Overview This post will cover the attacks detailed in the white-paper produced by SpecterOps. The most well-known of which is the ‘ESC8’ attack – where a standard domain user can escalate to Domain Admin, given a vulnerable environment. Before we begin with the main ‘Domain Escalation’ attacks (p. 54-81), we will quickly cover the THEFT5 […]
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AD CS – What Can Be Misconfigured?
Introduction The aim of this post is to go into more detail on the attacks described within the excellent ‘Certified Pre-Owned’ blog post & whitepaper produced by SpecterOps. This post will show how to configure a test environment which is vulnerable to the attacks they describe. If you are unfamiliar with AD CS, I have […]
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AD CS – The Basics
Introduction This post will cover the basics of Active Directory Certificate Services (AD CS) and how we can use certificates for offensive security. I have two other posts on this subject. The first of which covers some of the dangerous misconfigurations. And secondly, how we can actually perform the attacks. For those unfamiliar, AD CS […]
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HackTheBox ScriptKiddie Walkthough
ScriptKiddie was an Easy rated Linux machine, which involved exploiting a vulnerability within MetaSploit, then gaining access to the pwn user and abusing a sudo misconfiguration. Getting A Shell Reconnisance Initial nMap scans showed a very simple box, with just SSH and port 5000 open. I personally find the -sV -A flags tend to reveal […]
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My OSCP Exam Experience & Tips
Here is a write up of my OSCP exam experience – from studying through to passing the exam. Overall, it was a worthwhile experience and I would recommend it to anyone interested in infosec! TL:DR Practise! IMO, the OSCP exam manual is too large and not worth the effort Proving Grounds is far better than […]
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HTB Cyber Apocalypse – Emoji Voting Writeup
Emoji Voting was a 2-star rated ‘Web’ machine. The server was vulnerable to SQL injection, which allowed for the flag to be discovered. This was a fairly laborious process, as the SQL injection was after an ‘ORDER BY’ statement, which increased the complexity of exploiting it. Pwning Emoji Voting The website itself appears to be […]
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HTB CTF 2021 – Input as a Service Writeup
Input as a Serivce (Iaas) 1-star rated challenge from the HackTheBox Cyber Apocalypse CTF. This challenge was from the ‘Misc’ section, in contrast to most of the others I attempted! This challenge revolved around a input function vulnerability in a Python web server, which could be exploited to achieve an RCE. Some initial poking around […]
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HTB CTF 2021 – MiniSTRyplace Writeup
MiniSTRyplace was a 1-star rated ‘Web’ challenge from the HackTheBox Cyber Apocalypse CTF. The solution was pretty simple, with a vulnerable str_replace function allowing for a simple path traversal exploit. Initially, the files for the server were supplied as part of the challenge. From a quick initial search, the index.php file stood out as being […]
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HTB Cyber Apocalypse CTF 2021 – BlitzProp Writeup
BlitzProp is a 1* rated challenge from the web category of the HTB CTF. To exploit this, you need to use a ‘prototype pollution’ vulnerability in order to gain RCE against the target. This was the first time I had exploited a target using a vulnerability such as this, so I learned a lot from […]