Killer Queen CTF 2021
20 challenges with 47 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.
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
A Kind of Magic
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Obligatory Shark
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Road Safety Association
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Polynomial Time
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Binary exploitation5
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
- format-string
- canary
Same technique in picoCTF: format string 3, Binary Gauntlet 2, Binary Gauntlet 3
- pie
- pwn
- aslr
- format-string
- canary
Same technique in picoCTF: format string 3, Binary Gauntlet 2, Binary Gauntlet 3
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- tcache-poisoning
- heap
- pwn
Same technique in picoCTF: tea-cash, sice_cream, zero_to_hero
- python
- pwn
- integeroverflow
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
Cryptography3
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.
- python
- crypto
- web
Deoxyencoded Nucleic Acid
2 writeups- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
Cloudsourcing
1 writeup- rsa
Same technique in picoCTF: StegoRSA, john_pollard, rsa_oracle
Web2
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
Just Not My Type
3 writeups- php
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
- web
- rev
- crypto
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Reverse engineering2
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
sneeki snek
1 writeup- bytecode
- rev
- reverse
- reversing
Same technique in picoCTF: Virtual Machine 0, Virtual Machine 1, Ready Gladiator 0
sneeki snek 2 oh what did I do?
1 writeup- bytecode
- rev
- reverse
- reversing
Same technique in picoCTF: Virtual Machine 0, Virtual Machine 1, Ready Gladiator 0