CVE-2018-1170 Security feature bypass in Volkswagen Customer-Link App

High 8.8 Published Updated

Adjacent attackers can inject arbitrary CAN messages by bypassing firmware update protections in the Volkswagen Customer-Link App.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-1170?

CVE-2018-1170 is a high-severity vulnerability in Volkswagen Customer-Link App, published on 2 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows adjacent attackers to inject arbitrary Controller Area Network messages on vulnerable installations of Volkswagen Customer-Link App 1.30 and HTC Customer-Link Bridge. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Customer-Link App and Customer-Link Bridge. The issue results from the lack of a proper protection mechanism against unauthorized firmware updates. An attacker can leverage this vulnerability to inject CAN messages. Was ZDI-CAN-5264.

Weakness: CWE-693

Which versions are affected by CVE-2018-1170?

It affects 2 products.

Products include Htc Customer-Link Bridge, Volkswagen Customer-Link.

How do I fix CVE-2018-1170?

No fix has been published for CVE-2018-1170 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-1170 being exploited?

There is no known exploitation of CVE-2018-1170 in the wild and no public exploit code.

Sources

Also known as GHSA-8q3v-4vc2-wr4g.

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