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CVE-2021-41266— Authentication bypass issue in the Operator Console

Quick assessment

Affected
minio console
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Minio MinIO是美国MinIO（Minio）公司的一款开源的对象存储服务器。该产品支持构建用于机器学习、分析和应用程序数据工作负载的基础架构。 Minio 0.12.2及其之前版本存在访问控制错误漏洞，该漏洞源于软件启用外部IDP时，受影响的版本会在操作员控制台中遇到身份验证绕过问题。

CVSS 8.6 · High EPSS 48.13% · P99

Public Exploits 1

Nuclei · 1 CVE-2021-41266.yaml [template]

Possible ATT&CK Techniques 1 AI

T1199 · Trusted Relationship
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I. Basic Information for CVE-2021-41266

Vulnerability Information
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Vulnerability Title
Authentication bypass issue in the Operator Console
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Minio 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Minio MinIO是美国MinIO（Minio）公司的一款开源的对象存储服务器。该产品支持构建用于机器学习、分析和应用程序数据工作负载的基础架构。 Minio 0.12.2及其之前版本存在访问控制错误漏洞，该漏洞源于软件启用外部IDP时，受影响的版本会在操作员控制台中遇到身份验证绕过问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
minio console < 0.12.3 -

II. Public POCs for CVE-2021-41266

# POC Description Source Link Shenlong Link
1 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. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41266.yaml POC Details
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III. Intelligence Information for CVE-2021-41266

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Patches & Fixes for CVE-2021-41266 (1)

Vendor Advisories for CVE-2021-41266 (1)

IV. Related Vulnerabilities

Same product: console
Same vendor: minio
Same weakness: CWE-306

V. Comments for CVE-2021-41266

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