Reykjavik
10 points Easy

Good beginning Reversing challenge - jump into gdb and start looking for the flag!

Reykjavik.zip
Flag
Rating 4.65
5
4
3
2
1

Discussion

Hint: Use gdb peda

0

Thanks! This was a fun challenge to create.

0

I'm new to RE and took me a while to figure it out, even though it is pretty simple. Thanks for this challenge, learned a lot.

0

sorry guys, I can't get the file to execute and also not to debug with gdb. I get stuff like "zsh: exec format error: ./Reykjavik" or ".................... ............. sh: ./Reykjavik: not found" or (gdb) run Starting program: /code/Reykjavik /bin/sh: exec: line 1: /code/Reykjavik: not found During startup program exited with code 127. .... -bash: ./Reykjavik: cannot execute binary file: Exec format error

What's up with that file ?!?

0

or do you just want to trick me, ej ?

0

ok it runs on ubuntu ... not on alpine docker, not on raspian

0

Sorry for the problems... I created on Ubuntu and didn't test on any other platforms.

0

A smart challenge for beginners, with more than one way to be solved. Nice job, kcbowhunter!

0

Got me reconciled with RE, thanks

0

Yeah, after long time learning Assembly (i learn slowly) and watching liveoverflow I did it :D Great challenge!! Deserve the 5 *

0

Congrats! Unfortunately these reversing challenges have a steep learning curve; C, assembly, GDB / Ghira etc. Congrats on hanging in there!

0