Anuko Time Tracker 1.19.23.5325 - CSV/Formula Injection

# Exploit Title: Anuko Time Tracker 1.19.23.5325 - CSV/Formula Injection
# Date: 2020-10-17
# Exploit Author: Mufaddal Masalawala
# Vendor Homepage: https://www.anuko.com/ <https://berrnd.de/>
# Software Link: https://www.anuko.com/time-tracker/index.htm
# Version: 1.19.23.5325
# Tested on: Kali Linux 2020.3
# CVE: CVE-2020-15255
# Proof Of Concept:
CSV Injection (aka Excel Macro Injection or Formula Injection) exists in
Reports feature in Anuko Time Tracker v1.19.23.5311 via User, Project and
Note data field that is mistreated while exporting to a CSV file.
To exploit this vulnerability:

   1. Login to the application, goto 'User' module and edit the user
   2. Inject the payload *=rundll32|'URL.dll,OpenURL calc.exe'!A* in the
   'Name' field
   3. Goto 'Project' module, add a new project with the same malicious
   payload in the 'Name' field
   4. Goto 'Time' module, select our created User, Project and again enter
   the same payload in 'Note' field
   5. Enter the rest of the details and click 'Submit'
   6. Now goto 'Reports' click Generateand download the CSV file
   7. Open the CSV file, allow all popups and our payload is executed
   (calculator is opened).