Bypassing readOnly policy by creating a temporary 'mc share upload' URL

{
  "id": "0c5382a4e11202af16a2546db9e827ff3885d2c68f409aed4fc0668e517de9b3",
  "url": "https://osv.dev/vulnerability/BIT-minio-2021-21362",
  "method": "structured",
  "payload": {
    "kind": "withdrawal",
    "title": "Bypassing readOnly policy by creating a temporary 'mc share upload' URL",
    "summary": "MinIO is an open-source high performance object storage service and it is API compatible with Amazon S3 cloud storage service. In MinIO before version RELEASE.2021-03-04T00-53-13Z it is possible to bypass a readOnly policy by creating a temporary 'mc share upload' URL. Everyone is impacted who uses MinIO multi-users. This is fixed in version RELEASE.2021-03-04T00-53-13Z. As a workaround, one can disable uploads with `Content-Type: multipart/form-data` as mentioned in the S3 API RESTObjectPOST docs by using a proxy in front of MinIO.",
    "evidence": "osv:BIT-minio-2021-21362",
    "products": [
      {
        "name": {
          "value": "minio",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2021.03.04",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "BIT-minio-2021-21362",
      "aliases": [
        "BIT-minio-2021-21362"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2021.03.04"
                }
              ]
            }
          ],
          "package": {
            "name": "minio",
            "purl": "pkg:bitnami/minio",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V3",
              "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/minio/BIT-minio-2021-21362.json"
          }
        }
      ],
      "modified": "2026-10-08T08:11:02.807613153Z",
      "provider": "osv",
      "references": [
        "https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482",
        "https://github.com/minio/minio/pull/11682",
        "https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13Z",
        "https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v",
        "https://nvd.nist.gov/vuln/detail/CVE-2021-21362"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:minio:minio:*:*:*:*:*:*:*:*"
        ],
        "severity": "High"
      }
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 98774,
  "published_at": "2024-03-06T10:58:10.992+00:00"
}