Guest-to-host desktop access via authentication logic error
Published Jan 9, 2020 · Updated Aug 4, 2024
Improper authentication in Huawei Mate 20 before 9.1.0.139 allows local users with guest privilege to access the host user's desktop. The system contains a logic error in a guest-to-host authentication path that grants desktop access without validating the host user's screen-lock state. Exploitation requires obtaining guest-user privilege and physical interaction with the smartphone; the documented consequence is unauthorized access to the host desktop.
Summary
What happened
Improper authentication in Huawei Mate 20 before 9.1.0.139 allows local users with guest privilege to access the host user's desktop. The system contains a logic error in a guest-to-host authentication path that grants desktop access without validating the host user's screen-lock state. Exploitation requires obtaining guest-user privilege and physical interaction with the smartphone; the documented consequence is unauthorized access to the host desktop.
The record
- CVE
- CVE-2020-1787
- Published
- Jan 9, 2020
- Updated
- Aug 4, 2024
- Vendor
- MindSpore
- Product
- Huawei Mate 20
- Classifications
- CWE-287, T1078.001
- Attack vector
- physical
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 9, 2020CVE 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Versions earlier than 9.1.0.139(C00E133R3P1)
What conditions does exploitation require?
What is affected?
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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