CTF Challenges I've Created

This is a comprehensive list of all the CTF challenges I've created for CTFs I've helped host. They are split up by category, and have the difficulty and corresponding CTF(s) they were used in.

Note - EOS means "end of semester", or a BYU-only CTF that was held (surprisingly) towards the end of the semester

Categories

Binary Exploitation (pwn)

• Library (BYU EOS CTF Fall 2022) - intro
• Offset (BYU EOS CTF Fall 2022) - intro
• env (BYU EOS CTF Fall 2022) - intro
• Start (BYU EOS CTF Fall 2022) - intro
• Gort (BYU EOS CTF Fall 2024) - intro
• Overflow (BYU EOS CTF Fall 2022) - easy
• Ret2win (BYU EOS CTF Fall 2022) - easy
• Pwntools (BYU EOS CTF Fall 2022) - easy
• Pwn1 (BYU EOS CTF Winter 2024) - easy
• Pwn2 (BYU EOS CTF Winter 2024) - easy
• Pwn3 (BYU EOS CTF Winter 2024) - easy
• 2038 (BYUCTF 2023) - easy
• Gorl (BYU EOS CTF Fall 2024) - easy
• Goal (BYU EOS CTF Fall 2024) - easy
• Redirection (BYU EOS CTF Fall 2022) - medium
• Pie (BYU EOS CTF Fall 2022) - medium
• vsf1 (BYUCTF 2023) - medium
• shellcode (BYUCTF 2023) - medium
• All (BYUCTF 2024) - medium
• frorg (BYUCTF 2023) - hard
• Directory (BYUCTF 2024) - hard
• Gargantuan (BYUCTF 2024) - hard
• Numbersss (BYUCTF 2024) - hard
• Static (BYUCTF 2024) - hard

Cryptography

• Dit Dah (BYU EOS CTF Fall 2021) - intro
• Simple (BYU EOS CTF Fall 2021) - intro
• A-A-Ron (BYU EOS CTF Winter 2022) - easy
• RSA1 (BYUCTF 2023) - easy
• Compact (BYUCTF 2023) - easy
• Too Many Times (BYU EOS CTF Winter 2022, BYUCTF 2022) - medium
• One Time Pad (BYU EOS CTF Winter 2022) - medium
• RSA2 (BYUCTF 2023) - medium
• RSA3 (BYUCTF 2023) - medium
• Poem (BYUCTF 2023) - medium
• RSA4 (BYUCTF 2023) - medium
• RSA5 (BYUCTF 2023) - medium

Embedded

• UPnP (BYUCTF 2024) - medium (forensics)
• Reboot (BYUCTF 2024) - medium (misc)
• Sal (BYUCTF 2024) - hard (hardware)
• Token (BYUCTF 2024) - hard (pwn, crypto)
• MIPScode (BYUCTF 2024) - hard (pwn)
• enr (BYUCTF 2024) - hard (rev, forensics, mobile, crypto)

Forensics

• Liam's Idea (BYU EOS CTF Winter 2022) - easy
• kcpasswd (BYUCTF 2023) - easy
• Access (BYU EOS CTF Winter 2022) - medium
• The Villain (BYUCTF 2022) - medium
• .bash_history (BYU EOS CTF Fall 2021) - medium
• Routing (BYU EOS CTF Fall 2021) - medium
• Wordpress (BYU EOS CTF Fall 2021) - medium
• Infected (SekaiCTF 2023) - medium
• PNG (BYU EOS CTF Fall 2022) - hard
• zip (BYU EOS CTF Fall 2022) - hard
• CRConfusion (BYUCTF 2023) - hard

Jail

• Python Jail 1 (BYU EOS CTF Fall 2021) - easy
• Python Jail 2 (BYU EOS CTF Fall 2021) - easy
• Leet 1 (BYUCTF 2023) - easy
• Leet 2 (BYUCTF 2023) - easy
• Python Jail 3 (BYU EOS CTF Fall 2021) - medium
• Python Jail 4 (BYU EOS CTF Fall 2021) - medium
• Builtins 1 (BYUCTF 2023) - medium
• abcdefghijklm (BYUCTF 2023) - medium
• nopqrstuvwxyz (BYUCTF 2023) - medium
• a-z0-9 (BYUCTF 2023) - hard
• Builtins 2 (BYUCTF 2023) - hard

Miscellaneous

• ASCII Art (BYU EOS CTF Winter 2022) - easy
• ASCII Art 2 (BYU EOS CTF Winter 2022) - easy
• Composer (BYU EOS CTF Fall 2021) - easy
• Jukebox (BYU EOS CTF Winter 2022) - easy
• More pain (BYU EOS CTF Winter 2022) - easy
• Source Port (BYU EOS CTF Winter 2022) - easy
• Roblox (BYU EOS CTF Fall 2022) - easy
• Program (BYU EOS CTF Fall 2021) - easy
• Name (BYU EOS CTF Fall 2021) - easy
• Linked domain (BYU EOS CTF Fall 2021) - medium
• Composer 2 (BYU EOS CTF Fall 2021) - medium
• Wiki Game (BYU EOS CTF Fall 2021) - medium
• Roblox2 (BYU EOS CTF Fall 2022) - medium
• Makes (BYUCTF 2022) - medium
• PBKDF2 (BYUCTF 2023) - medium
• xkcd 2637 (BYUCTF 2023) - medium
• Netstat (BYUCTF 2024) - medium
• Country (BYU EOS CTF Fall 2021) - hard
• Collision (BYUCTF 2023) - hard

Network Exploitation

• Home Network 1 (RTVCTF 2023 @ DEFCON 31) - CVE exploitation, easy
• Home Network 2 (RTVCTF 2023 @ DEFCON 31) - Network exploitation, hard
• Home Network 3 (RTVCTF 2023 @ DEFCON 31) - Web/pwn problem, hard

OSINT

• Legoclones 1 (BYUCTF 2023) - easy
• Legoclones 4 (BYUCTF 2023) - medium
• Legoclones 5 (BYUCTF 2023) - medium
• TOR (BYUCTF 2023) - medium
• Legoclones 2 (BYUCTF 2023) - hard
• Legoclones 3 (BYUCTF 2023) - hard

Password Cracking

• MD5 (BYU EOS CTF Fall 2021) - easy
• SHA512 (BYU EOS CTF Fall 2021) - easy
• NTLM (BYU EOS CTF Fall 2021) - easy
• Guessy (BYU EOS CTF Fall 2021) - medium
• Fruits (BYU EOS CTF Fall 2021) - medium
• Wordlist (BYU EOS CTF Fall 2021) - hard
• Winword (BYU EOS CTF Fall 2021) - hard
• Personal (BYU EOS CTF Fall 2021) - hard
• Release the Crakin (BYU EOS CTF Winter 2022) - hard

Reverse Engineering

• Python intro (BYU EOS CTF Winter 2022) - intro
• Binary (BYU EOS CTF Fall 2021) - easy
• obfuscJStor (BYUCTF 2023) - easy
• Ducky 1 (BYUCTF 2023) - easy
• Stone moon (BYU EOS CTF Winter 2022) - medium
• Arr (BYU EOS CTF Fall 2021) - medium
• Symbolless (BYU EOS CTF Fall 2022) - medium
• Python VM (BYU EOS CTF Fall 2022) - medium
• Ducky 2 (BYUCTF 2023) - medium
• Ducky 3 (BYUCTF 2023) - medium
• Chain (BYUCTF 2023) - medium
• go (BYUCTF 2023) - medium
• Rust (BYUCTF 2024) - medium
• Time (BYUCTF 2024) - medium
• Bad (BYU EOS CTF Fall 2021) - hard
• Web Bad (BYU EOS CTF Fall 2021) - hard
• XOR (BYU EOS CTF Fall 2021) - hard
• e (BYU EOS CTF Fall 2022) - hard
• Chicken (BYUCTF 2022) - hard
• bad2 (BYUCTF 2023) - hard
• sassie (BYUCTF 2023) - hard
• Musles (BYUCTF 2024) - hard
• Verse (BYUCTF 2024) - hard
• Magnum Opus (SekaiCTF 2024) - very hard

Steganography

• Incorrect (BYU EOS CTF Fall 2021) - easy
• Details (BYU EOS CTF Fall 2021) - easy
• Cyber Risk (BYU EOS CTF Fall 2021) - medium
• Cyber Risk 2 (BYU EOS CTF Fall 2021) - medium

Unredact

• Unredact Word (BYU EOS CTF Winter 2022) - easy
• Unredact PDF (BYU EOS CTF Winter 2022) - easy
• Obfuscationnn (BYU EOS CTF Winter 2022) - easy
• GIMP (BYU EOS CTF Winter 2022) - medium
• Pixels (BYU EOS CTF Winter 2022) - medium
• Reconstruct (BYU EOS CTF Winter 2022, BYUCTF 2022) - hard

Web

• Source (BYU EOS CTF Fall 2021) - intro
• Error (BYU EOS CTF Fall 2021) - intro
• Client-side (BYU EOS CTF Fall 2021) - easy
• Please Avoid (BYU EOS CTF Fall 2021) - easy
• Hidden (BYU EOS CTF Winter 2022) - easy
• Spoof (BYU EOS CTF Winter 2022) - easy
• urmombotnetdotnet.com 1 (BYUCTF 2023) - easy
• Brid (BYU EOS CTF Fall 2021) - medium
• Command (BYU EOS CTF Fall 2022) - medium
• Fragment (BYU EOS CTF Winter 2022) - medium
• Fetaverse (BYU EOS CTF Winter 2022, BYUCTF 2022) - medium
• Social Media (BYU EOS CTF Winter 2022, BYUCTF 2022) - medium
• urmombotnetdotnet.com 2 (BYUCTF 2023) - medium
• urmombotnetdotnet.com 3 (BYUCTF 2023) - medium
• Notes (BYUCTF 2023) - medium
• Not a Problem - medium
• Social Media 2 (BYU EOS CTF Winter 2022) - hard
• Grafana (BYU EOS CTF Winter 2022, BYUCTF 2022) - hard
• urmombotnetdotnet.com 4 (BYUCTF 2023) - hard
• urmombotnetdotnet.com 5 (BYUCTF 2023) - hard
• HUUP (BYUCTF 2023) - hard
• Argument - hard
• Random - hard
• Triple Whammy - hard