WebMar 21, 2024 · How come when returning a pointer (address) to a string to the calling function it prevents the EIP to be overwritten, while returning void, or int will cause the EIP register to be overwritten as expected How does the EIP register store its value in the two scanrios mentioned above (with one vuln_func returning char* and other vuln_func WebJul 29, 2024 · This way, you overwrite the stored return address, essentially giving you control to EIP. Your main function doesn't really return into a space that you control. Make the code something like: #include void vuln (char *arg) { char buffer [500]; strcpy (buffer, arg); } int main ( int argc, char** argv ) { vuln (argv [1]); return 0; }
[드림핵(Dreamhack)] basic_exploitation_000 (포너블) — BO&BO
WebOct 16, 2024 · In general, the stack grows by popping on the following things in the following order: return address-> function params-> locals. In your case, you can probably test it by writing more bytes than you need. (will work as long as <4k was allocated to this functions stack prior to overflow being popped on the stack) WebMay 25, 2024 · 어느 함수를 실행하다가 프로세스가 죽었는지 확인할 수 있다. main의 0x401264를 실행하다 죽은 것으로 확인된다. list명령을 통해 해당 부분의 소스코드를 확인한다. 0x401264 부분에 브레이크를 걸고 스택을 확인해보면 다음과 … pranks to play on your teacher at school
[pwn] Return Address Overwrite
WebMar 29, 2024 · 들어가며 스택 오버플로우는 보안직이 아닌 일반 개발직무 분들도 많이 들어본 용어일 것이다. 심지어 구글링할 때 항상 참고하게 되는 Stack Overflow 이름도 말그대로 스택 오버플로우이다. 아래는 CVE에 등록된 보안 취약점의 종류를 보여주는 도표이다. 이중에서 주황색 막대기로 체크된 Overflow가 ... Web그 다음부터가 return address이기에 get_shell address를 최종적으로 넘겨주면 된다. 아래는 최종 exploit 코드이다. from pwn import * p = remote ( "host1.dreamhack.games" , 19944 … WebApr 9, 2024 · The address on the right is the return address of the current function. Share Improve this answer Follow answered Nov 21, 2024 at 0:31 Miguel Pinheiro 162 11 Add a comment Your Answer By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy Not the answer you're looking for? Browse other … pranks to play on your dad