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....

NOTE: In this CTF we participated with ripp3rs. Introduction Abbreviations in English are complicated... Why? In this challenge we are given a 64-bit statically linked executable, compiled with...

Log Analysis An incident has affected our website! Fortunately, we have logs. This is a 3-part challenge. Two IIS logs are provided: $ ll *log 9,4M attack.log 46M more.log $ for f in *log; ...

Write What Where is an easy pwn challenge with 70 solves. We get an x64 executable and a libc shared library. The description of the challenge is the following: You've got one write. What do you d...

flag checker was a reversing challenge during DownUnderCTF 2021 that got 16 solves. We are given a stripped 64 bit binary ELF file for Linux. $ file flag_checker flag_checker: ELF 64-bit LSB pie ...

Introduction Sharp is the pwn challenge with the fewest solves in Hacktivitycon CTF 2021. We are given a 64-bit binary and a libc shared library. The program is a username manager programmed in C. ...

NOTE: Original post at: http://revpwn.com/Writeups/rev/SunshineCTF-UselessVM/. Problem Description I designed my own virtualized flag storage system a while back. Unfortunately, I think it may hav...

Gotta Decrypt Them All You are stuck in another dimension while you were riding Solgaleo. You have Rotom-dex with you to contact your friends but he won’t activate the GPS unless you can prove ...

Symphony of Loss was one of the forensics challenges in TMU CTF 2021 that only got 3 solves. The challenge description reads: After monitoring our company's network, we found some suspicious traff...

Paas was a kernel exploitation challenge during GrabCON CTF 2021 that only got a single solve (our own). We are given a tarball and SSH access to a remote server. The compressed archive contains a ...