CTF Writeups

2021

S.H.E.L.L CTF

Crypto:
Cyber Attack 1

Web Security:
anonym
Under Development
Collide
login
Fun with Tokens

Forensics:
Hidden inside
Cold Compress Inside
Hidden inside 2

Cryptography:
encoder
Algoric-Shift
Subsi
haxxor

Reverse Engineering:
check_flag
keygen
sakuna

Incognito wtfCTF

Crypto:
wtf_BOT
v4l1dat3

Miscellaneous:
K3YL0gg3r
m15tery_Box
W1n_W0n

Pwn:
MoM5m4g1c

Reverse:
H3ll0R3v

Web:
M4sk3r

NorzhCTF 2021

Intro:
Discovery

Reverse:
Secure Auth v0

Web:
Triskel 1: First contact
Triskel 2: Going in
Triskel 3: Dead end
Duty Free

Pentest:
Leet Computer

San Diego CTF 2021

OSINT:
This flag has been stolen

Crypto:
Lost in Transmission
A Prime Hash Candidate

Revenge:
A Bowl of Pythons
una acies

PWN:
HAXLAB - Flag Leak
printFAILED

Misc:
No flag for you

DawgCTF 2021

Fwn (Forensics/Web/Network):
Just A Comment
Crack IFS

Audio/Radio:
Third Eye
Tag, You’re It!

Pwn:
No Step On Snek
Jellyspotters

Binary Bomb:
BBomb - Phase 1
BBomb - Phase 2
BBomb - Phase 3
BBomb - Phase 4

HeroCTF v3

AI:
A(i)crostic

Blockchain:
Transfer

Box:
DevOps User

Crypto:
h4XOR

Forensics:
We need you 1/5
We need you 2/5
We need you 3/5
We need you 4/5

Kernel:
Kernel Module #1

Misc:
Record
Russian Doll

Prog:
Ping Pong
White Market

Reverse:
EasyAssembly

Steganography:
HolyAbbot
Atoms

System:
The Dark Knight
Assistant

Web:
PwnQL #1
0xSSRF
You Should Die
PwnQL #2

S4CTF 2021

crypto:
Baby-IQ
Baby-XoR

misc:
ninidibi

rev:
Warm Welcome

Securebug.se CTF Odin 2021

Web Security:
Send License #windows #key
Eating
Get Me #blindsqli #sqli
READ THE FLAG
Objects #mongodb #timestamp
Usual or Unusual

Digital Forensics:
Hide and seek
Find parts #pngfix
1FAGuy #firefox #password

Cryptography:
Artwork
AsymmetricJob #rsa #publickey

Reverse Engineering:
It all starts from the beginning

Plaid CTF 2021

crypto:
xorsa #xor #rsa

HackPack CTF 2021

misc:
Regex World!
Aurora
Euler’s Identity

web:
Indead v1 #php #rce
Indead v2 #xxe
“N”ot “G”am”I”ng a”N”ymore in “X”mas

reverse:
Function Pointer Fun
BF means best friend, right?

pwn:
Baby Calc

RITSEC CTF 2021

Misc:
Answers

Forensics:
Blob

REV/BIN:
snek

ångstromCTF 2021

misc:
Archaic
Fish

Rev:
Free Flags!!1!!
Infinity Gauntlet
Revex

Crypto:
Exclusive Cipher
Follow the Currents
Keysar v2
Relatively Simple Algorithm
sosig

Binary:
Sanity Checks

Web:
Sea of Quills #sqli
Sea of Quills 2 #sqli

FooBar CTF

Forensics/Steg:
Render
Bulky Load

Crypto:
Profezzor Revenge
Back to the future

reverse:
Wargames

Web:
My Weak Secret
Monochrome
Lotion

OSINT:
OLD MEMORIES

UMassCTF 2021

misc:
Scan Me
ekrpat
Jeopardy

web:
Hermit - Part 1
Hermit - Part 2
PikCha

pwn:
webserver

forensics:
notes

rev:
easteregg

codeFest 20 CTF

Web:
Sanity Check 2
SQL 2.0

Forensics:
Anime is love
b1n4rY

vishwaCTF 2021

Warmup:
Discord-bot

Web:
bot not not bot
Is Js Necessary?
Redeeem
UwU
Inspect the un-Inspected
Time is an illusion

Cryptography:
From the FUTURE

Reverse Engineering:
Apollo 11
Rotations
Facile
Suisse
Misleading Steps
FlowRev

Forensics:
Barcode Scanner
peace
Sherlock
Comments
bubblegum

General:
Treasure Hunt
Git Up and Dance
Good Driver Bad Driver

BSidesSF 2021 CTF

Chimera
Tapesplice
Higher Hurdles

2020

AppSec-IL 2020 CTF

SMTPDebugger #python #bytecode

DarkCTF 2020

Web/Agent-U
Web/Apache Logs
Linux/Find-Me
Cryptography/haxXor
Rev/HelloWorld
Linux/linux starter
Misc/Minetest 1
Web/PHP Information
Rev/so_much
Web/So_Simple
Linux/Squids
Rev/strings
Cryptography/WEIRD ENCRYPTION
Forensics/Wolfie’s Contact

DownUnderCTF 2020

16 Home Runs
added protection
Addition
Bad man
fix my pc
formatting
In a pickle
Leggos
On the spectrum
Pretty Good Pitfall
rot-i

CSAW CTF Qualification Round 2020

authy
flask_caching
slithery

RAT CTF 2020

Overview #xxe

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