Local privilege escalation via missing VOW permission check
Published Jul 4, 2023 · Updated Dec 4, 2024
Improper authentication in MediaTek VOW on Android 12.0 and 13.0 allows local users to gain elevated privileges without interaction. The VOW component omits a permission check before performing a privileged operation, but MediaTek has not disclosed the operation or entry point. Exploitation requires local access but no additional execution privileges; successful exploitation elevates the attacking process beyond its existing permissions.
Summary
What happened
Improper authentication in MediaTek VOW on Android 12.0 and 13.0 allows local users to gain elevated privileges without interaction. The VOW component omits a permission check before performing a privileged operation, but MediaTek has not disclosed the operation or entry point. Exploitation requires local access but no additional execution privileges; successful exploitation elevates the attacking process beyond its existing permissions.
The record
- CVE
- CVE-2023-20773
- Published
- Jul 4, 2023
- Updated
- Dec 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-287, T1404
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 4, 2023CVE publishedPublication date reported by the CVE source.
- Dec 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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