h4ckc0n 2015
12 challenges with 12 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 CTFtimeBinary 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.
- python
- bin
- pi
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- bin
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- python
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
- python
- pwn
Same technique in picoCTF: Guessing Game 1, x-sixty-what, format string 3
Misc3
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
- c
- misc
Same technique in picoCTF: Permissions, Specialer, Codebook
- misc
- graphics
Same technique in picoCTF: Permissions, Specialer, Codebook
- hex
- misc
- file
Same technique in picoCTF: Permissions, Specialer, Codebook
Cryptography2
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.
- enigma
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
- crypto
Same technique in picoCTF: StegoRSA, Timestamped Secrets, AES-ABC
Web1
Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.
- cookies
- md5
- web
Same technique in picoCTF: logon, Cookie Monster Secret Recipe, Old Sessions
Forensics1
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
- pcap
- web
Same technique in picoCTF: FindAndOpen, WebNet0, WebNet1