CVE-2021-46145 Information

Description

The keyfob subsystem in Honda Civic 2012 vehicles allows a replay attack for unlocking. This is related to a non-expiring rolling code and counter resynchronization.

CVSS Vector

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

Reference

https://twitter.com/Kevin2600/status/1475482656871571459?s=20 http://starvlab.qianxin.com/?p=409 https://twitter.com/Kevin2600/status/1472070749208780804?s=20 https://tiger-team-1337.blogspot.com/2022/01/honda-civic-keyfob-system-affected-by.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.3