Cryptoverse CTF 2023
34 challenges with 79 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.
Full task list on CTFtimeMisc8
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Also written up in: sajjadium/ctf-archives, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, banhcuon79/ctf-writeups, TRkizaki/cryptoverse2023, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, banhcuon79/ctf-writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Also written up in: sahuang/my-ctf-challenges, banhcuon79/ctf-writeups
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
- ocaml
- misc
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
Two and a half years
3 official solutionsAlso written up in: sahuang/my-ctf-challenges, TRkizaki/cryptoverse2023, sahuang/my-ctf-challenges
- misc
- programming
- maths
Same technique in picoCTF: PW Crack 2, Permissions, Specialer
OJail
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, Fckroun/Cryptoverse-CTF-2023-Writeups
Baby calculator
1 official solutionAlso written up in: Fckroun/Cryptoverse-CTF-2023-Writeups
Server
1 official solutionAlso written up in: sahuang/my-ctf-challenges
Cryptography7
Recover a plaintext or a key from something that was supposed to protect it. In practice: identify the scheme, find the parameter the author got wrong, exploit it.
Picochip
6 official solutionsAlso written up in: sajjadium/ctf-archives, sajjadium/ctf-archives, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, TRkizaki/cryptoverse2023, TRkizaki/cryptoverse2023
Baby AES
3 official solutionsAlso written up in: Fckroun/Cryptoverse-CTF-2023-Writeups, banhcuon79/ctf-writeups, banuaa/CTF-Writeup
- crypto
- aes
Same technique in picoCTF: AES-ABC, Compress and Attack, cryptomaze
- crypto
Same technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
PicoChip 2
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
Crypto/Warmup 1
1 writeupSame technique in picoCTF: It's Not My Fault 2, StegoRSA, AES-ABC
PicoChip 1
1 official solutionAlso written up in: sahuang/my-ctf-challenges
Reverse engineering7
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- reverse
Same technique in picoCTF: Checkpass, WinAntiDbg0x100, WinAntiDbg0x200
Simple Checkin
3 official solutionsAlso written up in: Fckroun/Cryptoverse-CTF-2023-Writeups, banuaa/CTF-Writeup, hitori-chan/ctf-writeups
Solid Reverse
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, 0x0918/Writeups
Touhou Danmaku Kagura
2 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
Java Not Interesting
1 official solutionAlso written up in: sahuang/my-ctf-challenges
Also written up in: sahuang/my-ctf-challenges
Micro Assembly
1 official solutionAlso written up in: banuaa/CTF-Writeup
Binary exploitation4
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
- pwn
Same technique in picoCTF: lockdown-horses, Guessing Game 1, Bizz Fuzz
Acceptance
1 official solutionAlso written up in: banuaa/CTF-Writeup
Ret2school
1 official solutionAlso written up in: khanhdlq/CTF-WriteUp
Script
1 official solutionAlso written up in: khanhdlq/CTF-WriteUp
Uncategorised4
The upstream scoreboard did not say, so neither do we.
Cryptoverse CTF 2023
1 official solutionAlso written up in: Fckroun/Cryptoverse-CTF-2023-Writeups
LFSR Explorer
1 official solutionAlso written up in: banhcuon79/ctf-writeups
Also written up in: TRkizaki/cryptoverse2023
REHOST
1 official solutionAlso written up in: pwncollege/ctf-archive
Web3
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Safe Locker
8 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, TRkizaki/cryptoverse2023, TRkizaki/cryptoverse2023
passCheck
3 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, TRkizaki/cryptoverse2023
Safe Locker Plus Plus
3 official solutionsAlso written up in: sahuang/my-ctf-challenges, sahuang/my-ctf-challenges, sahuang/my-ctf-challenges
OSINT1
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
- osint
Same technique in picoCTF: CVE-XXXX-XXXX