hook overwrite

[System][Dreamhack] Exploit Tech: Hook Overwrite(2/2)

드림핵 RELRO 강의, 드림핵 wargame fho 문제에 대한 글이다. Free Hook Overwrite 실습 코드 // Name: fho.c // Compile: gcc -o fho fho.c #include #include #include int main() { char buf[0x30]; unsigned long long *addr; unsigned long long value; setvbuf(stdin, 0, _IONBF, 0); setvbuf(stdout, 0, _IONBF, 0); puts("[1] Stack buffer overflow"); printf("Buf: "); read(0, buf, 0x100); printf("Buf: %s\n", buf); puts("[2] Arbitrar..