CVE-2019-14353

Severity Score

4.2

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

On Trezor One devices before 1.8.2, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the USB cable might be able to leverage this behavior to recover confidential secrets such as the PIN and BIP39 mnemonic. In other words, the side channel is relevant only if the attacker has enough control over the device's USB connection to make power-consumption measurements at a time when secret data is displayed. The side channel is not relevant in other circumstances, such as a stolen device that is not currently displaying secret data. NOTE: this CVE applies exclusively to the Trezor One, and does not refer to any issues with OLED displays on other devices.

En los dispositivos Trezor One en versiones anteriores a 1.8.2, se encontró un canal lateral para la pantalla OLED basada en filas. El consumo de energía de cada ciclo de visualización basado en filas depende del número de píxeles iluminados, lo que permite una recuperación parcial del contenido de la pantalla. Por ejemplo, un implante de hardware en el cable USB podría aprovechar este comportamiento para recuperar secretos confidenciales como el PIN y el mnemónico BIP39. En otras palabras, el canal lateral es relevante solo si el atacante tiene suficiente control sobre la conexión USB del dispositivo para realizar mediciones de consumo de energía en un momento en que se muestran datos secretos. El canal lateral no es relevante en otras circunstancias, como un dispositivo robado que actualmente no muestra datos secretos. NOTA: este CVE se aplica exclusivamente a Trezor One y no hace referencia a ningún problema con las pantallas OLED en otros dispositivos.

*Credits: N/A

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-07-28 CVE Reserved
2019-08-08 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-203: Observable Discrepancy

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://blog.trezor.io/details-of-the-oled-vulnerability-and-its-mitigation-d331c4e2001a	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Trezor Search vendor "Trezor"	One Firmware Search vendor "Trezor" for product "One Firmware"	< 1.8.2 Search vendor "Trezor" for product "One Firmware" and version " < 1.8.2"	-	Affected	in	Trezor Search vendor "Trezor"	One Search vendor "Trezor" for product "One"	-	-	Safe