Local privilege escalation via WLAN out-of-bounds write
Published Aug 7, 2023 · Updated Oct 22, 2024
Out-of-bounds write in MediaTek WLAN service on Android 12.0 and 13.0 allows local users to escalate privileges. The service writes beyond a buffer boundary because it inadequately validates input; MediaTek has not disclosed the affected function or input field. Exploitation requires existing System execution privileges but no user interaction, and can obtain further local privilege.
Summary
What happened
Out-of-bounds write in MediaTek WLAN service on Android 12.0 and 13.0 allows local users to escalate privileges. The service writes beyond a buffer boundary because it inadequately validates input; MediaTek has not disclosed the affected function or input field. Exploitation requires existing System execution privileges but no user interaction, and can obtain further local privilege.
The record
- CVE
- CVE-2023-20814
- Published
- Aug 7, 2023
- Updated
- Oct 22, 2024
- Vendor
- MediaTek
- Product
- MT6889
- Classifications
- CWE-787, T1404
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Aug 7, 2023CVE publishedPublication date reported by the CVE source.
- Oct 22, 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=0 <=*
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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