Administrator modification of UEFI variables
Published Jun 23, 2023 · Updated Nov 8, 2024
Improper input validation in Dell Client Platform BIOS allows local users with administrator privileges to modify a UEFI variable. Dell has not disclosed the affected input path, the UEFI variable involved, or the validation operation that accepts improper data. Exploitation requires authenticated local administrator access and permits firmware-state changes with integrity and limited availability impact, while Dell reports no confidentiality impact.
Summary
What happened
Improper input validation in Dell Client Platform BIOS allows local users with administrator privileges to modify a UEFI variable. Dell has not disclosed the affected input path, the UEFI variable involved, or the validation operation that accepts improper data. Exploitation requires authenticated local administrator access and permits firmware-state changes with integrity and limited availability impact, while Dell reports no confidentiality impact.
The record
- CVE
- CVE-2023-28036
- Published
- Jun 23, 2023
- Updated
- Nov 8, 2024
- Vendor
- Dell
- Product
- Dell Client Platform BIOS
- Classifications
- CWE-20, T1565.001
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jun 23, 2023CVE publishedPublication date reported by the CVE source.
- Nov 8, 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=All Versions
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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