Vulnerabilities > CVE-2021-43858 - Incorrect Authorization vulnerability in Minio
Attack vector
NETWORK Attack complexity
LOW Privileges required
SINGLE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf
- https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z
- https://github.com/minio/minio/pull/13976
- https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx
- https://github.com/minio/minio/pull/7949