DEF CON CTF Qualifier 2015
12 challenges with 26 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 CTFtimeMisc5
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
- coding
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
Same technique in picoCTF: Permissions, Specialer, Codebook
- misc
- programming
Same technique in picoCTF: Permissions, Specialer, Codebook
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.
- shell
- reverse engineering
- exploit
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- x86
- exploit
- calculator
- compiler
- jit
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- amd64
- debugger
- rop
Same technique in picoCTF: Guessing Game 1, x-sixty-what, Binary Gauntlet 3
- pwnable
- windows
- rop
Same technique in picoCTF: Guessing Game 1, x-sixty-what, Binary Gauntlet 3
Reverse engineering3
Work out what a compiled program does without its source, then work backwards from the check to the input that passes it.
- reverse engineering
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- reverse engineering
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300
- programming
- reverse engineering
- pwnable
Same technique in picoCTF: WinAntiDbg0x100, WinAntiDbg0x200, WinAntiDbg0x300