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Writeups for the Side Channel Hardware Challenges I have written for the 0xL4ugh CTF in 2024.

A series of three challenges involving forensics, pwn and reverse engineering of a router firmware

A mobile challenge from the CyCTF'23 Qualification where you have to hack a react native apk

I talk about AI and NLP in the context of my graduation project.

I recently participated in a hackathon with my team, where we faced multiple challenges, including solving riddles and optimizing our algorithms. We ended up achieving a high ranking and learned valuable lessons about optimization and problem-solving along the way.

A classic ret2win challenge on a 64-bit binary, overflow RIP with win() address to get flag.

A classic ret2shellcode with a twist, we use a gadget to execute our code off the stack. binary is 32-bit.

A write-what-where scenario that enables us to overwrite the destructor (dtor) in the relocations table with our win() function to get a shell.

A hardware challenge where we're given some serial output from a Arduino and the corresponding wiring diagram and encryption source code.

I found a listing for a 2TB usb flash drive on AliExpress for less than $3 I bought It and after 24 days, I recieved my order and started analyzing it, little did I know a surprise was waiting for me.

eh

I was having a chit-chat with a friend discussing some C language shenanigans when he sent me a code snippet, he wanted me fix the code and get it to work in 4 different ways.