Everyone loves canteen food
Welcome to the canteen's online menu, where you can check out the daily specials and their prices. But is everything as appetizing as it seems?
2025-05-09 5 min read
Writeups for CSCG challenges.
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vidplow
We recently stumbled upon an exposed SVN server of a large multimedia corporation, containing some of their backend application and internal tooling code. However, the access keys seem to not be the ones used in production - the real ones should fetch us quite a high price though, if we manage to get our hands on them that is. Just one problem - the tech stack seems to be really obscure, and no one on our team seems to have any clue what the heck is going on. Can you take a look, and maybe find some vulnerabilities in this thing?
2025-05-03 4 min read
KDF dream
We've managed to insert ourselves into a secure channel between two covert agents, however we overplayed our hand and they have become suspicious that their channel is compromised. Realising that there is no way to restablish trust over the compromised network, Alice called for them to carry out a NIST Certified KDF protocol to generate a symmetric OTP, and then for them to use this to encrypt a physical message at a dead drop location. We want to control the message she leaves, can you influence their conversation to control what Bob reads at the dead drop?
2025-05-02 9 min read
Air smeller
I found this website where you can rate the smell of the air, after purification. Do you know a good purifier, maybe you can recommend some purifier to the people.
2025-05-01 7 min read
Photoeditor
Recently I learned ASP .NET Core and boy, it's so magic! Dependency injection, dynamic routing, interfaces everywhere. But for me, it wasn't dynamic enough. So I extended the framework and now I got all the dynamic in the world I could wish for. That surely didn't introduce any vulnerabilities, right?",
2024-05-17 5 min readNo writeups match the current filters.