@theblacksheep,
Sorry to bother, but since you're back, do you think you can work on RHC 3? I've been dying to try this challenge. Thanks.

Yes, me too!

same here

hmm yes i have beaten this challange ...... its prolly to easy for users or *nix
i wouldnt think it would be that hard to fix ....... i mean all you have to do is load it to a higher folder
then restrict any reverse directory transversal ocournces int the systen() or passthru() call

to prevent directory traversal, also the echo command has to be filtered, because it's possible to use octal chars, i.e. ls `echo -e \000 \001 \002` for listing the above directory

and any use of fopen and some other nice functions which allow you to open and read files.

it's not possible to chroot a directory, is it?