CVE Vulnerabilities

CVE-2021-46145

Authentication Bypass by Capture-replay

Published: Jan 06, 2022 | Modified: Jan 18, 2022
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
2.9 LOW
AV:A/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

Affected Software

Name Vendor Start Version End Version
Civic_2012 Honda - (including) - (including)

Potential Mitigations

References