CVE-2019-18673
Last modified
CVE-2019-18673 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Shiftcrypto | Bitbox02 | All versions |
References
- https://blog.inhq.net/posts/oled-side-channel-status-summary/Exploit, Third Party Advisory
- https://blog.inhq.net/posts/oled-side-channel-status-summary/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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