[TetCTF 2020] All Pwn Writeups

All files can be found here. OANHBOT Given files: oanhbot, libc-2.23.so. The binary has: Partial RELRO, Canary found, NX enabled and No PIE. Functionalities In this program, you will name your hero and choose an enemy to fight with and decide who wins. Firstly, the program reads 0x10…

MatesCTF 2019 Round 4 - BarryAllen -Web1 - FillTheBottle

PWN: BarryAllenSource: https://github.com/LKMDang/CTFs/tree/master/MatesCTF2019_Round4/BarryAllen AnalyzingThis challenge comes with a single binary file with a single function: The program is just simple: it calls srand with the difference of the 2 values of microsecond from gettimeofday() as the seed, and then it calls…

AceBear CTF 2019 PWN: House of loop - Darknote

House of loopSource: https://github.com/LKMDang/CTFs/tree/master/AceBearCTF_2019/house_of_loop Checksec:The challenge gives us 2 files: an executable and a libc version 2.27. Based on the name of the challenge, I predicted that this challenge was about heap exploitation, which I have done…

EfiensCTF2019-Round2 write-ups

This is a write-ups for the Efiens's qualification CTF - round 2 and this is my first CTF write-ups ever. Actually, when I participated in this CTF, I was kind of a newbie who had just gotten into programming for 5-6 months and CTF for about 2 months so this…