Tokyo Westerns MMA CTF 2016 shadow Summary: 32bit ELF with NX/ASLR but no-PIE is given. call and ret instructions are instrumented and shadow stack is implemented. there is stack based buffer overflow on 'message' function, but this can't be used for manipulating the return address. however, arbitrary memory read/write can be achieved by manipulating the function's arguments. there is a menu 'change name' which gives arbitrary me.. 더보기 이전 1 ··· 8 9 10 11 12 13 14 ··· 423 다음