preeny

Preeny helps you pwn noobs by making it easier to interact with services locally. It disables fork() and alarm() and, if you want, can even convert a server application to a console one using clever/hackish tricks!

Building

You can build preeny by doing make. It'll create a directory named after the OS and architecture type, and put the libraries there.

Usage

Let's say that you have an application that you want to interact with on the commandline, but it a) forks, b) sets an alarm which makes it hard to take your time studying its behavior, and c) demands to be connected to even if you don't want to do that. You can do:

make
LD_PRELOAD="Linux_x86/desock.so Linux_x86_64/defork.so Linux_x86_64/dealarm.so" ~/code/security/codegate/2015/rodent/rodent

Pretty awesome stuff! Of course, you can pick and choose which preloads you want:

echo 'No fork or alarm for you, but I still want to netcat!'
LD_PRELOAD="Linux_x86_64/defork.so Linux_x86_64/dealarm.so" ~/code/security/codegate/2015/rodent/rodent

echo 'Ok, go ahead and fork, but no alarm. Time to brute force that canary.'
LD_PRELOAD="Linux_x86_64/dealarm.so" ~/code/security/codegate/2015/rodent/rodent

Have fun!