Paper/Archive/CVE-2023-32156

CVE-2023-32156

Tesla Model 3 — Tesla Model 3 Gateway Firmware Signature Validation Bypass Vulnerability

CVSS 9.0 (CNA)9.0 / 10 × 3027.0 Not in CISA KEV+300.0 EPSS percentile 37.2.372 × 207.4 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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

ProductAffectedFixed inSource

Model 3Model 3 - 2023.6–CNA

model_3- – < 2023.122023.12CISA-ADP

Scores by source

zdi (CNA)9.0CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refzerodayinitiative.com/advisories/ZDI-23-972