CVE-2019-18673

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.

• CVE ID
• CVE-2019-18673

• Assigner
• cve@mitre.org

• Vulnerability Status
• Analyzed

• Published Version
• 2019-11-02T17:15:10

• Last Modified Date
• 2021-07-21T11:39:23

• Version
• 2.0

• Vector String
• AV:L/AC:M/Au:N/C:P/I:N/A:N

• Access Vector
• LOCAL

• Access Compatibility
• MEDIUM

• Authentication
• NONE

• Confidentiality Impact
• PARTIAL

• Integrity Impact
• NONE

• Availability Impact
• NONE

• Base Score
• 1.9

• Severity
• LOW

• Exploitability Score
• 3.4

• Impact Score
• 2.9

• Version
• 3.1

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

• Attack Vector
• PHYSICAL

• Attack Compatibility
• LOW

• Privileges Required
• NONE

• User Interaction
• NONE

• Scope
• UNCHANGED

• Confidentiality Impact
• HIGH

• Availability Impact
• NONE

• Base Score
• 4.6

• Base Severity
• MEDIUM

• Exploitability Score
• 0.9

• Impact Score
• 3.6