Vulnerability · Published May 3, 2024 · Assigned by zdi

CVE-2023-32156Tesla Model 3 Gateway Firmware Signature Validation Bypass Vulnerability

Critical 9.0

In plain English

A critical-severity security flaw in Model 3 from Tesla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.0)9.0Critical

Exploit odds (30 days)0.4%top 62.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Tesla Model 3 Gateway Firmware Signature Validation Bypass Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Tesla Model 3 vehicles. An attacker must first obtain the ability to execute privileged code on the Tesla infotainment system in order to exploit this vulnerability. The specific flaw exists within the handling of firmware updates. The issue results from improper error-handling during the update process. An attacker can leverage this vulnerability to execute code in the context of Tesla's Gateway ECU. . Was ZDI-CAN-20734.

Affected products (as reported)

Vendor	Product	Versions
Tesla	Model 3	Model 3 - 2023.6

Weakness: CWE-367 · Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

ZDI-23-972 x_research-advisory