CVEvulnerability

CVE-2019-18673

4.6 MEDIUM Published 2019-11-02 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-11-02
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
1.9 LOW — AV:L/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-203

Description

On SHIFT BitBox02 devices, 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. Note: BIP39 secrets are not displayed by default on this device. 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.

Affected configurations

• shiftcrypto bitbox02

Related

Weakness · CWE (1)

  • CWE-203 Observable Discrepancy weakness

Referenced by CWE · observed example (1)

  • CWE-1300 Improper Protection of Physical Side Channels weakness

References