랜덤 라이브러리 무효화 시키기

A good thing is that we have a neat trick to disable libc ASLR:

$ ulimit -s unlimited

$ ldd ./X79

        linux-gate.so.1 =>  (0x40020000)

        libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0x4003a000)

        /lib/ld-linux.so.2 (0x40000000)

$ ldd ./X79

        linux-gate.so.1 =>  (0x40020000)

        libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0x4003a000)

        /lib/ld-linux.so.2 (0x40000000)

충경과 공포..

http://leetmore.ctf.su/wp/ifsf-ctf-2012-9-x97/