Auth bypass in Min Minio Console
CVE-2021-41266
Minio console is a graphical user interface for the for MinIO operator. Minio itself is a multi-cloud object storage project. Affected versions are subject to an authentication bypass issue in the Operator Console when an external IDP is enabled. All users on release v0.12.2 and before are affected and are advised to update to 0.12.3 or newer. Users unable to upgrade should add automountServiceAccountToken: false to the operator-console deployment in Kubernetes so no service account token will get mounted inside the pod, then disable the external identity provider authentication by unset the CONSOLE_IDP_URL, CONSOLE_IDP_CLIENT_ID, CONSOLE_IDP_SECRET and CONSOLE_IDP_CALLBACK environment variable and instead use the Kubernetes service account token.
Vulnerability class: Broken Authentication
EPSS: 0.484 (98.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.
Affected products
- Min Minio_console
- Minio Console — versions < 0.12.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
- security-advisories@github.com (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-41266?
- CVE-2021-41266 is a high-severity vulnerability in Min Minio Console, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2021-11-15.
- How severe is CVE-2021-41266?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2021-41266 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.