Privilege escalation via AddUser policy-field injection
Published Dec 27, 2021 · Updated Aug 4, 2024
Privilege escalation in MinIO before RELEASE.2021-12-27T07-23-18Z allows remote authenticated users to gain higher privileges through the AddUser API. The handler decodes a password-update body as UserInfo and applies its attacker-supplied policy field while updating the caller's secret key or status. Valid MinIO credentials and knowledge of the Admin API are required, and successful exploitation changes the user's effective authorization policy.
Summary
What happened
Privilege escalation in MinIO before RELEASE.2021-12-27T07-23-18Z allows remote authenticated users to gain higher privileges through the AddUser API. The handler decodes a password-update body as UserInfo and applies its attacker-supplied policy field while updating the caller's secret key or status. Valid MinIO credentials and knowledge of the Admin API are required, and successful exploitation changes the user's effective authorization policy.
The record
- CVE
- CVE-2021-43858
- Published
- Dec 27, 2021
- Updated
- Aug 4, 2024
- Vendor
- MinIO
- Product
- MinIO
- Classifications
- CWE-269, T1098
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 27, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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=< RELEASE.2021-12-27T07-23-18Z
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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