ker2x's guild hall adventure Ch.2

Author:
ker2x

Language:
C/C++

Upload:
2019-07-01 16:26

Download

Platform:
Unix/linux etc.

Difficulty:
2.0

Quality:
4.5

Arch:
x86-64

Downloads:
21

Size:
7.56 KB

Writeups:
4

Comments:
9

Description

Friendly greetings ! This chapter is a tgz because it include the chapter1. it turn out the version i uploaded wasn't the final version and was missing one challenge. Thank you to everyone who submitted a solution and made me realize my mistake. I also added a README but most of the stuff, help, (mis)information, tips & (dirty)tricks are in the binary. Have fun

Comments (9)
Writeups (4)

You must be logged in to post a comment

ker2x on 2019-07-05 20:17: Chapter 3 has been submitted, it should be available this weekend. With a much longer story. good luck

Leon on 2019-07-08 10:46: Quite interesting. (plz don't report me to the church...)

ker2x on 2019-07-09 17:21: Don't worry Leon the church is cool and just a front, it's actually managed by Dungeon-core onee-sama. (jump to chapter 3 and the upcoming release to know more about it)

ker2x on 2019-07-09 17:25: Thx SYS_V for submitting a solution. Ghidra is a real pain for cracmes writers, i use too. I think my original source code is harder to understand than the ghidra output :D I have to find a way to trick ghidra while still making the challenge very-easy or, at least, easy.

BinaryNewbie on 2019-07-11 01:39: @ker2x, i think that i solved this crackeme, if the final output is something like that: BWAHAHAHAHA BAKAAAAAAAA !!! 0x5dd614a4 is super totally wrooong ! Segmentation fault (core dumped) ... ho damn, that's right... WHY ? To be continued... (you really succeded but i'll kill you anyway. don't worry, you'll be fine) Falha de segmentação (imagem do núcleo gravada) (same as segmentation fault, because i'm brazilian xD)

ker2x on 2019-07-11 04:36: yes, it's the real success final output

BinaryNewbie on 2019-07-11 15:23: @ker2x, i submit the solution.

ker2x on 2019-07-16 04:42: Good job ! thank you for submitting your solution :)

You must be logged in to submit a writeup

Solution by SYS_V on 2019-07-06 07:47:
Very creative way of triggering the segfault, great work!

Download

Solution by kawaii-flesh on 2019-07-07 17:53:
Solution using radare2 Thanks for crackme ker2x

Download

Solution by BinaryNewbie on 2019-07-11 02:45:
File with the two solutions and a keyGen.

Download

Solution by Shadorain on 2021-05-05 14:08:
What a fun crackme! Here is my solution in markdown, if you would rather a rendered version on a pretty site here is a link: https://shadorain.github.io/blog/Security/Reversing/Crackme_gha2. Hope you enjoy!

Download

crackmes.one

crackmes.one

ker2x's guild hall adventure Ch.2