Privilege escalation in Minio
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 p…
Vulnerability class: Privilege Escalation
EPSS: 0.531 (98.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Minio — versions < RELEASE.2021-12-27T07-23-18Z
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx (x_refsource_CONFIRM)
- github.com/minio/minio/pull/13976 (x_refsource_MISC)
- github.com/minio/minio/pull/7949 (x_refsource_MISC)
- github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf (x_refsource_MISC)
- github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-43858?
- CVE-2021-43858 is a high-severity vulnerability in Minio, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2021-12-27.
- How severe is CVE-2021-43858?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-43858 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.