{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-21362",
        "STATE": "PUBLIC",
        "TITLE": "Bypassing readOnly policy by creating a temporary 'mc share upload' URL"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "minio",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< RELEASE.2021-03-04T00-53-13Z"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "minio"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-285: Improper Authorization"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v",
                "refsource": "CONFIRM",
                "url": "https://github.com/minio/minio/security/advisories/GHSA-hq5j-6r98-9m8v"
            },
            {
                "name": "https://github.com/minio/minio/pull/11682",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/pull/11682"
            },
            {
                "name": "https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/commit/039f59b552319fcc2f83631bb421a7d4b82bc482"
            },
            {
                "name": "https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13Z",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/releases/tag/RELEASE.2021-03-04T00-53-13Z"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-hq5j-6r98-9m8v",
        "discovery": "UNKNOWN"
    }
}