CVE-2021-43858

high

Description

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.

References

https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx

https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z

https://github.com/minio/minio/pull/7949

https://github.com/minio/minio/pull/13976

https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf

Details

Source: Mitre, NVD

Published: 2021-12-27

Updated: 2022-08-09

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High