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Red Team Blue Team
Although my work revolves around Blue Team research such as attack detection and defense mechanisms, I have been learning and studying a lot on Red Team techniques which for now mostly consists of Web Attacks. Knowing more about the attack techniques, surface, privilege escalation, lateral movement and many others have given me a much broader […]
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Four Thousand Weeks
A book by Oliver Burkeman. The premise is that we all have roughly 4000 weeks to live, and that we should savor every moment, instead of constantly worrying about the future. That’s not to say that we should disregard future problems like climate change and perhaps more personal matters like family planning and health. Instead […]
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Think Again
Summary points on the book Think Again by Adam Grant Treat your opinions as a hypothesis instead of a fact, and be prepared for your hypothesis to be refuted Identify yourself with values, not opinions Actively seek out conflicting views points to your opinions Don’t confuse competence with confidence Enjoy being wrong Learn something new […]
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UA CSW CTF 2022 Write Up Dump
Dump of some solutions for this beginner friendly CTF. It was relatively easy compared to others. Web Penguim – (De)Serial Killer Login page Homepage Weird looking cookie Path Traversal in picture_path Flag is rendered as base64 Missing Out Source. Immediately looking at werkzeug console exploit. Since the app.log is in the same folder and the […]
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HTB Cyber Apocalypse Forensics
Dump of the 3 Forensics challenge that I solved Generally for Windows forensics, I like to use Autopsy, which is a brilliant tool to extract dat artifacts from a wide variety of inputs Puppeteer We import all the logs files into Autopsy as Logical Files Select all the ingest modules to run, which analyses the […]
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Angstrom Rev Writeups
I’ve decided to fully focus on Rev and Web for CTFs now, as I find Pwning too magical, and not really “useful” to me. Anyhoo, here are some reversing writeups from Angstrom CTF! Dyn Running the code, we see that it gets the flag as an input Stepping through the code, it tries to unwrap 32 characters, […]
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247CTF
Here are some writeups for 247CTF, which are mostly web challenges. ACID We’re given a page that has two accounts. You can transfer funds between the two accounts with the parameter ?to=1&from=2&amount=1 To get the flag, you require more than the total available funds at the start, which is 247. If we transfer the funds […]
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Midnight Sun CTF Gambler
This is one of the hardest CTF I’ve been in. My team did really well to qualify for the finals in Sweden, and I wish them all the best as I will not be joining them. The Gambler This was a DotNet binary, we so could use DNSpy to inspect the full source code In […]
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Winja CTF Reverse Engineering
Honestly, this was a very easy CTF rev challenge. One of them had a flaw with there being more than 1 possible flag, while another was straight out leaking the whole flag with ltrace. So this is the only writeup worth writing, even though it was extremely easy Matriarcado Opening the binary, we see that […]
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WolvSec CTF: pwning canaries
Another writeup for a pwn CTF challenge! In this challenge, we need to leak the canary value via format strings, and do a buffer overflow to change the return address to the desired function. The buffer for us to overflow is 16 characters long. It first reads in data with a format string, and prints […]
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