CVE-2021-43858
MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious client can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges. The patch in version `RELEASE.2021-12-27T07-23-18Z` changes the accepted request body type and removes the ability to apply policy changes through this API. There is a workaround for this vulnerability: Changing passwords can be disabled by adding an explicit `Deny` rule to disable the API for users.
Vulnerability Summary
CVSS v3 Score
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2 Score
AV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS Score (Exploitation Probability)
This vulnerability has a 53.12% probability of being exploited in the next 30 days, ranking higher than 98% of all scored CVEs.
CWE Classification
Related Vulnerabilities
Same Weakness Type(CWE-269)
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Similar SeverityHIGH
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