Code of The Day

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 […]

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 […]

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, […]

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 […]

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 […]

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 […]

I briefly participated in a CTF hosted by WolvSec here: https://ctf.wolvseccon.org/. This post is going to be looking at a “Medium” level difficulty Reverse Engineering problem! n33dl3 When we run the file, it prints a single statement, before terminating Firing this binary in Ghidra, we see a deep level of nested function calls, however, they […]