lazy1106/picoctf2021-writeup

Solutions (that we managed to find) for the 2021 PicoCTF

PicoCTF2021-Writeup

For the sole purpose of proving people did stuff.
On a side note... these are the writeups for the few questions we managed to complete.
Side note x2: I don't think my team mates are going to add to this anymore but I'm going to also add in the questions that got solved after pico ended and be sad about the simplicity of some of them cough milk. Everything before this commit was solved before pico ended (if it matters)

If you'd like to try some of these problems yourself, head on over to PicoGym!

Questions

General Skills

Question	Points
Obedient Cat	5
Python Wrangling	10
Wave a flag	10
Nice netcat...	15
Static ain't always noise	20
Tab, Tab, Attack	20
Magikarp Ground Mission	30

Cryptography

Question	Points
Mod 26	10
Mind your Ps and Qs	20
New Caesar	60
Dachshund Attacks	80
Pixelated	100
Play Nice	110
It is my Birthday 2	170
New Vignere	300

Web Exploitation

Question	Points
Ancient History	10
GET aHEAD	20
Cookies	40
Scavenger Hunt	50
Some Assembly Required 1	70
It is my Birthday	100
Who are you?	100
Most Cookies	150

Forensics

Question	Points
information	10
Weird File	20
Matryoshka doll	30
tunn3l v1s10n	40
Wireshark doo dooo do doo...	50
MacroHard WeakEdge	60
Trivial Flag Transfer Protocol	90
Disk, disk, sleuth!	110
Milkslap	120
Disk, disk, sleuth! II	130

Reverse Engineering

Question	Points
Transformation	20
keygenme-py	30
crackme-py	30
speeds and feeds	50
Shop	50

Binary Exploitation

Question	Points
Stonks	20
What's your input	50