Home/CVE/MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious
CVE

CVE-2021-43858

MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious

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.

HIGH · CVSS 8.8 EPSS 0.53117
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
CWE-863Incorrect Authorization
▤

Affected Products & Versions

1
minio< 2021-12-27t07-23-18z
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Dec 2021 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
rhsaRHSA-2022:4956Moderate
rhsaRHSA-2022:0735Important
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abfPatchThird Party Advisory
https://github.com/minio/minio/pull/13976PatchThird Party Advisory
https://github.com/minio/minio/pull/7949PatchThird Party Advisory
https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18ZRelease NotesThird Party Advisory
https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cxPatchThird Party Advisory
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