clooooode

Problem

Points: 5 pt

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Nana told me that buffer overflow is one of the most common software vulnerability. 
Is that true?

Download : http://pwnable.kr/bin/bof
Download : http://pwnable.kr/bin/bof.c

Running at : nc pwnable.kr 9000

Link

Problem

Points: 3 pt

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Daddy told me about cool MD5 hash collision today.
I wanna do something like that too!

ssh [email protected] -p2222 (pw:guest)

Link

Problem

Points: 1 pt

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Mommy! what is a file descriptor in Linux?

* try to play the wargame your self but if you are ABSOLUTE beginner, follow this tutorial link:
https://youtu.be/971eZhMHQQw

ssh [email protected] -p2222 (pw:guest)

Link

PHP weak type

If string is process as a number, When the string doesn’t contain ‘.’, ‘e’ or ‘E’ and in the range of integer, it will process as integer.
otherwise, process as float, and the begin of string decide it value, or it will be 0.
PHP Weak Type
CTF PHP-WEAK-TYPE Writeup

謹記念某漫畫App Crack經歷。

I thought i can develope my own framework.
But i found out that too may people did same thing just like me.
Oops…

紀錄一下踩過Unix系的天坑。

因為沒錢，只好土砲。

This is the tutorial for Yuntech OSC.
English version, but no any future plang to translate to zh-TW.lol

Feel free to corect anything through PM.
Also we have a Gitbook version at here.

放點筆記，謹記念不專心上課的OOP。