Cleartext data access via keypad controller replacement
Published Jun 10, 2022 · Updated Aug 3, 2024
Authentication bypass in Lepin EP-KP001 through KP001_V19 allows physically proximate attackers to read encrypted data in cleartext. The keypad microcontroller alone validates the passcode, so replacing it with one from a device whose code is known unlocks the target partition. Exploitation requires physical possession, controller desoldering and resoldering, and a second EP-KP001 with a known passcode; it exposes stored data without modifying it.
Summary
What happened
Authentication bypass in Lepin EP-KP001 through KP001_V19 allows physically proximate attackers to read encrypted data in cleartext. The keypad microcontroller alone validates the passcode, so replacing it with one from a device whose code is known unlocks the target partition. Exploitation requires physical possession, controller desoldering and resoldering, and a second EP-KP001 with a known passcode; it exposes stored data without modifying it.
The record
- CVE
- CVE-2022-29948
- Published
- Jun 10, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-657
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 10, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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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
- EP-KP001 microcontroller-swap proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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