Advanced Search

C - Example Buffer OverFlow

/ Published in: C++
Save to your folder(s)

Expand | Embed | Plain Text

Copy this code and paste it in your HTML 
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int main(int argc, char *argv[])
  5. {
  6. 	char *buffer1 = (char *)calloc(5, sizeof(char));
  7. 	char *buffer2 = (char *)calloc(15, sizeof(char));
  8. 	char *tmp;
  9.  
  10. 	strcpy(buffer2, "ls -a --color");
  11. 	strcpy(buffer1, argv[1]);
  12.  
  13. 	// Indirizzi di memoria...
  14. 	printf("%p <-- buffer1\n", buffer1);
  15. 	printf("%p <-- buffer2\n", buffer2);
  16. 	printf("\n\n");
  17.  
  18. 	// Stampa indirizzi...
  19. 	printf("Start code....\n");
  20. 	tmp=buffer1;
  21. 	while(tmp<buffer2+15)
  22. 	{
  23. 		printf("%p: %c (0x%x)\n", tmp, *tmp, *(unsigned int *)tmp);
  24. 		tmp++;
  25. 	}
  26.  
  27. 	printf("\n");
  28. 	system(buffer2);
  29. 	return 0;
  30. }

Report this snippet


Comments

RSS Icon Subscribe to comments

You need to login to post a comment.