User privilege escalation in MinIO
33Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.8epss 35%
exploitation probability
35%top 2% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
minio · minioReferences
https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abfhttps://github.com/minio/minio/pull/13976https://github.com/minio/minio/pull/7949https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Zhttps://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx