Privilege escalation via firmware out-of-bounds write
Published Nov 17, 2021 · Updated Aug 3, 2024
An out-of-bounds write in Intel Ethernet 700 Series Controllers firmware before 8.2 allows privileged local users to escalate privileges. The controller firmware writes beyond a permitted buffer boundary when processing locally supplied input, corrupting adjacent memory. Exploitation requires a privileged user with local access to the controller; impact includes integrity and availability compromise, while confidentiality is not affected.
Summary
What happened
An out-of-bounds write in Intel Ethernet 700 Series Controllers firmware before 8.2 allows privileged local users to escalate privileges. The controller firmware writes beyond a permitted buffer boundary when processing locally supplied input, corrupting adjacent memory. Exploitation requires a privileged user with local access to the controller; impact includes integrity and availability compromise, while confidentiality is not affected.
The record
- CVE
- CVE-2021-0200
- Published
- Nov 17, 2021
- Updated
- Aug 3, 2024
- Vendor
- Intel Corporation
- Product
- Intel Ethernet 700 Series Controllers
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Nov 17, 2021CVE 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=before version 8.2
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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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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