Unauthorized garage opening via replayed commands
Published Oct 7, 2021 · Updated Aug 4, 2024
Authentication bypass in Meross MSG100 before 3.2.3 allows remote attackers to open a garage door by replaying captured command data. The device's command-message validation accepts previously observed data and allows a captured Close message to be altered into an accepted Open message. Exploitation requires access sufficient to sniff a legitimate command; the bounded consequence is unauthorized physical opening rather than device compromise.
Summary
What happened
Authentication bypass in Meross MSG100 before 3.2.3 allows remote attackers to open a garage door by replaying captured command data. The device's command-message validation accepts previously observed data and allows a captured Close message to be altered into an accepted Open message. Exploitation requires access sufficient to sniff a legitimate command; the bounded consequence is unauthorized physical opening rather than device compromise.
The record
- CVE
- CVE-2021-35067
- Published
- Oct 7, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-294, T1557
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 7, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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
- Meross Smart Wi-Fi Garage Door Opener Analysisproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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