CVE-2023-27892

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.

CVSS v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 5.2

Attack Vector PHYSICAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://blog.inhq.net/posts/keepkey-CVE-2023-27892/	Exploit Third Party Advisory
https://github.com/keepkey/keepkey-firmware/pull/337	Patch

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:shapeshift:keepkey_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:shapeshift:keepkey:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-05-02 21:15

Updated : 2024-02-28 20:13

NVD link : CVE-2023-27892

Mitre link : CVE-2023-27892

CVE.ORG link : CVE-2023-27892

JSON object : View

Products Affected

shapeshift

keepkey
keepkey_firmware

CWE

CWE-125

Out-of-bounds Read

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