CVE-2023-27892
5.7 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
5.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.4%
Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages. Flaws in cf_confirmExecTx() in ethereum_contracts.c can be used to reveal arbitrary microcontroller memory on the device screen or crash the device. With physical access to a PIN-unlocked device, attackers can extract the BIP39 mnemonic secret from the hardware wallet.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| shapeshift:keepkey_firmware | shapeshift keepkey firmware | lt | 7.7.0 |
Related
5.7 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
5.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
25.4%