#VU26321 Input validation error in Tesla Model 3 - CVE-2020-10558

Vulnerability identifier: #VU26321

Vulnerability risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-10558

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Tesla Model 3
Other software / Other software solutions

Vendor: Tesla

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to due to improper process separation in the driving interface. A remote attacker can trick a victim to visit a crafted webpage, crash the chromium-based browser interface and inherently crash the entire Tesla Model 3 interface.

Successful exploitation of this vulnerability allows a remote attacker to disable the speedometer, web browser, climate controls, turn signals, navigation, autopilot notifications, and blinker notifications along with other miscellaneous functions from the main screen. 

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Tesla Model 3: before 2020.4.10

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External links
https://safekeepsecurity.com/about/cve-2020-10558/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.