For this challenge, we are given a compiled ELF file and its corresponding C source code. The program has two critical format string vulnerabilities, which enable an attacker to easily read and wri...

queue up! is a web challenge in LaCTF 2023 that ended with 34 solves. The goal is to retrieve a flag that is sent by a web application when the queue goes down and the timer reaches zero. However, ...

Dreams was an exploitation challenge from ångstromCTF 2022. We are given an ELF binary and a glibc shared object, version 2.31. $ checksec ./dreams Arch: amd64-64-little RELRO: Full RELRO...

Introduction to the webpage This is an interesting challenge developed by Steven that has 12 solves in Midnight Sun CTF 2022. We are given a webpage which is based on CGI scripts, we suppose that’...

Solves: 34 Type: crypto/pwn Difficulty: Easy Author: Pun1sher + Arkaja crack() the jail to get the flag. But make sure you get your crypto right. Introduction This was a very fun challenge to...

Challenge description Our CTO takes Git commits quite seriously. Someone in our discord channel got an email from him. Now the person wants a similar email signature like the CTO of our company...

This user called timehowls on reddit was really rude to me. Can you osint him and find some sensitive information about him? The first thing they give us is a reddit username so we go to red...

NOTE: The following is a writeup for the solution we developed independently for this challenge after the end of the competition. Cloudinspect was a pwn challenge during Hack.lu CTF 2021 that got ...

Sold: 92 times Type: crypto Risk: Low Seller: 3ul3r The local water supplier Silver Water Industries is planning their IPO. To appeal to current crypto investors, they even implemented a mil...

NOTE: In this CTF we participated with ripp3rs. Beans talk was a reversing challenge during ASIS CTF Quals 2021 that got 37 solves. We are given a 64 bit binary ELF file with debug info for Linux....