CVE-2019-18673 — MEDIUM (4.6)

Vulnerability 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.

CVSS Score

4.6

MEDIUM

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

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Shiftcrypto	Bitbox02	-

Related Weaknesses (CWE)

CWE-203

References

https://blog.inhq.net/posts/oled-side-channel-status-summary/ExploitThird Party Advisory
https://blog.inhq.net/posts/oled-side-channel-status-summary/ExploitThird Party Advisory

FAQ

What is CVE-2019-18673?

CVE-2019-18673 is a vulnerability with a CVSS score of 4.6 (MEDIUM). 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 partia...

How severe is CVE-2019-18673?

CVE-2019-18673 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-18673?

Check the references section above for vendor advisories and patch information. Affected products include: Shiftcrypto Bitbox02.