Timing-based side channel attack on an pin-checker program

Reading files in a sandboxed environment

Arbitrary curl to RCE

Simple ROP through a socket

Reversing a NOR machine

Shellcode golfing

ret2dlresolve on 64-bit binaries with huge pages

Author writeups for picoMini by redpwn

Writeup for not-crypto (rev)

Writeup for notepad (web)

Fixing a corrupt PNG file

Client side login seems like a bad idea

Exploiting heavily restricted pickle deserialization

An unusual trick for format string exploitation

Exploiting SSRF in a complex web application

Tricky format string exploitation

Automated analysis of a large binary

Blind exploitation of nginx from justCTF 2020

Solutions to selected problems from the 2020 Winter Contest

Required writeups for winning teams.

This was a two-part series from the 2020 CSAW CTF Qualifier involving a small Tetris-like game.

This is my writeup for the challenge "guess" in the pwn category from OSUSEC's DamCTF 2020.

Solutions for crypto challenges from the CSAW RED 2020 Qualification Round.

Solutions for misc challenges from the CSAW RED 2020 Qualification Round.

Solutions for web challenges from the CSAW RED 2020 Qualification Round.

Solutions for pwn challenges from the CSAW RED 2020 Qualification Round.

Solutions for rev challenges from the CSAW RED 2020 Qualification Round.