CVE-2019-12797

A clone version of an ELM327 OBD2 Bluetooth device has a hardcoded PIN, leading to arbitrary commands to an OBD-II bus of a vehicle

published July 31, 2019

CVSS
—
EPSS
1%
Percentile
68.2
In the wild
Unconfirmed
What it is

🚨 A hardcoded PIN in a cloned ELM327 OBD2 Bluetooth device could let anyone control your vehicle — that's like giving a stranger the keys to your car without a second thought! 🔑 Think of it as a restaurant with a single access code that the chef forgot to change. Any customer with that code could walk straight into the kitchen and whip up whatever dish they desire, totally unsupervised! With this vulnerability, an attacker could potentially send arbitrary commands to your vehicle’s OBD-II bus, which might allow them to manipulate engine settings, disable safety features, or even unlock your doors. That could lead to some seriously dangerous situations — and we definitely don’t want joyriders playing mechanic!

Put simply

Think of it as a restaurant with a single access code that the chef forgot to change. Any customer with that code could walk straight into the kitchen and whip up whatever dish they desire, totally unsupervised! This vulnerability arises from a hardcoded PIN in the cloned ELM327 device, allowing unauthorized access to the OBD-II system. Consequently, attackers can execute arbitrary commands affecting the vehicle's functionality.

What to do

With this vulnerability, an attacker could potentially send arbitrary commands to your vehicle’s OBD-II bus, which might allow them to manipulate engine settings, disable safety features, or even unlock your doors. That could lead to some seriously dangerous situations — and we definitely don’t want joyriders playing mechanic! If you're using this cloned device, it's essential to stop using it immediately. Consider replacing it with a certified version that doesn't have hardcoded credentials. Also, regularly audit any devices connected to your vehicle's systems to ensure they are secure. You've got this! Stay vigilant and keep your ride safe! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01208 · 68.2th percentile
Published
2019-07-31T18:21Z
EPSS history
Timeline
  • 31 JUL 18:21Z
    A clone version of an ELM327 OBD2 Bluetooth device has a hardcoded PIN, leading to arbitrary commands to an OBD-II bus of a vehicle
    cvelistv5