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nvd[email protected]NVD:CVE-2020-29440
HistoryNov 30, 2020 - 10:15 p.m.

CVE-2020-29440

2020-11-3022:15:11
CWE-295
web.nvd.nist.gov
1
tesla model x
bcm
certificate validation
key fob
can bus
spoofed key

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:N/I:P/A:N

CVSS3

4.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

4.7

Confidence

High

EPSS

0.001

Percentile

24.2%

Tesla Model X vehicles before 2020-11-23 do not perform certificate validation during an attempt to pair a new key fob with the body control module (BCM). This allows an attacker (who is inside a vehicle, or is otherwise able to send data over the CAN bus) to start and drive the vehicle with a spoofed key fob.

Affected configurations

Nvd
Node
teslamodel_x_firmwareRange<2020-11-23
AND
teslamodel_xMatch-
VendorProductVersionCPE
teslamodel_x_firmware*cpe:2.3:o:tesla:model_x_firmware:*:*:*:*:*:*:*:*
teslamodel_x-cpe:2.3:h:tesla:model_x:-:*:*:*:*:*:*:*

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:N/I:P/A:N

CVSS3

4.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

AI Score

4.7

Confidence

High

EPSS

0.001

Percentile

24.2%

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