NVV Ticket Krauth ATM - (NaN) Devide by Zero Vulnerability

Document Title:
===============
NVV Ticket Krauth ATM - (NaN) Devide by Zero Vulnerability


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=1837

View Video: https://www.youtube.com/watch?v=iIT4gcboKjk



Release Date:
=============
2016-04-25


Vulnerability Laboratory ID (VL-ID):
====================================
1837


Common Vulnerability Scoring System:
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6


Discovery Status:
=================
Published


Exploitation Technique:
=======================
Local


Severity Level:
===============
Medium


Technical Details & Description:
================================
An anonymous researcher discovered a local vulnerability in the automated teller machines of the krauth company model series.
The issue is a NaN bug that is present because of a devide by zero issue in the customer interface of the ticket vending machine.
The issue allows to get back the money with the option to book a ticket for free during the interaction with the connected ticket mechanism.
The bug has been patched during the first qarter of the year 2016 by the NVV in hessen germany.


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri ([email protected]) [www.vulnerability-lab.com]


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=========================
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