BCTF 2018
11 challenges with 24 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.
guess number
5 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
- blockchain
Same technique in picoCTF: Reentrance, Smart_Overflow, Access_Control
easysandbox
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
- blockchain
Same technique in picoCTF: Reentrance, Smart_Overflow, Access_Control
guess_polynomial
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
SimpleVN
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
three
2 writeupsSame technique in picoCTF: Permissions, Specialer, Codebook
easiest
1 writeupSame technique in picoCTF: Permissions, Specialer, Codebook
Web1
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- web
Same technique in picoCTF: Client-side-again, dont-use-client-side, Irish-Name-Repo 3
Binary exploitation1
Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.
- pwnable
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
Reverse engineering1
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- fastjson
- java
- web
Same technique in picoCTF: vault-door-1, vault-door-3, vault-door-4