QUALS_NDH 2k15 | FaceBox WEB 100 [WRITEUP]

This task is a web task worth 100 points from the Nuit du Hack qualifications. Its name should have been « guest fest » We are given a website, where you can upload files. There are already a few files uploaded : confidentials.txt, which is private, and paste01.txt. Both have been uploaded by the same user. We […]

QUALS_NDH 2k15 | GAME OF LIFE CRYPTO 150 [WRITEUP]

I wrote this writeup because I have seen some guys doing this challenge by using XORTOOL, but without understanding … mister X | python xortool.py cipher.txt; cat xortool_out/000.out mister X | So hardcore That’s why I’ll try to give you a real explaination of « why xortool have worked » So, for this challenge, we were given […]

QUALS_NDH 2k15 | Facesec WEB 100 [WRITEUP]

This task is a web task worth 100 points from the Nuit du Hack qualifications. We are given a website that lets you upload txt files for a cover letter, and a motivation letter. (cv.txt, motiv.txt) It is also possible to a tar file containing both files. Once you uploaded them, you can see them […]