Executive Summary

Informations
Name CVE-2023-27892 First vendor Publication 2023-05-02
Vendor Cve Last vendor Modification 2023-05-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Overall CVSS Score 5.7
Base Score 5.7 Environmental Score 5.7
impact SubScore 5.2 Temporal Score 5.7
Exploitabality Sub Score 0.5
 
Attack Vector Physical Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-27892

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3

Sources (Detail)

Source Url
MISC https://blog.inhq.net/posts/keepkey-CVE-2023-27892/
https://github.com/keepkey/keepkey-firmware/pull/337

Alert History

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0
1
2
Date Informations
2023-05-10 21:27:25
  • Multiple Updates
2023-05-03 17:27:17
  • Multiple Updates
2023-05-03 00:27:16
  • First insertion