Unauthorized door unlocking via static RF replay
Published Mar 23, 2020 · Updated Aug 5, 2024
Authentication bypass in the Honda HR-V 2017 remote keyless system allows physically proximate attackers to unlock doors by replaying RF commands. The receiver accepts a previously captured door-open transmission because the key fob emits the same static RF command for every request instead of a fresh, one-time code. Exploitation requires radio proximity when a legitimate command is captured, after which retransmission grants unauthorized vehicle entry.
Summary
What happened
Authentication bypass in the Honda HR-V 2017 remote keyless system allows physically proximate attackers to unlock doors by replaying RF commands. The receiver accepts a previously captured door-open transmission because the key fob emits the same static RF command for every request instead of a fresh, one-time code. Exploitation requires radio proximity when a legitimate command is captured, after which retransmission grants unauthorized vehicle entry.
The record
- CVE
- CVE-2019-20626
- Published
- Mar 23, 2020
- Updated
- Aug 5, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-294
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 23, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Unoriginal-Rice-Patty replay demonstrationfunctional · demonstrated
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Technologies
Your stack
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Your stack
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