Advisory Details

October 7th, 2022

Tesla wowlan_config Use-After-Free Privilege Escalation Vulnerability

ZDI-22-1406
ZDI-CAN-17543

CVE ID CVE-2022-42430
CVSS SCORE 8.8, AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AFFECTED VENDORS Tesla
AFFECTED PRODUCTS Model 3
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected Tesla vehicles. An attacker must first obtain the ability to execute privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the handling of the wowlan_config data structure. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

ADDITIONAL DETAILS

Fixed in Tesla’s 2022.28 release.


DISCLOSURE TIMELINE
  • 2022-05-24 - Vulnerability reported to vendor
  • 2022-10-07 - Coordinated public release of advisory
CREDIT Vincent DEHORS of @Synacktiv
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