Local privilege escalation via Companion input validation
Published Aug 11, 2022 · Updated Aug 3, 2024
Improper input validation in Android 13 Companion allows local users to gain privilege by keeping a service important without notification. Companion accepts crafted input that keeps a service running at elevated importance while suppressing the required foreground-service notification. Exploitation requires user interaction and local access; the documented consequence is elevation of privilege with no added execution privileges.
Summary
What happened
Improper input validation in Android 13 Companion allows local users to gain privilege by keeping a service important without notification. Companion accepts crafted input that keeps a service running at elevated importance while suppressing the required foreground-service notification. Exploitation requires user interaction and local access; the documented consequence is elevation of privilege with no added execution privileges.
The record
- CVE
- CVE-2022-20266
- Published
- Aug 11, 2022
- Updated
- Aug 3, 2024
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-20, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 11, 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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Is a vulnerable build present?
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- Affected versionversion=Android-13
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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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