{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-43858",
        "STATE": "PUBLIC",
        "TITLE": "User privilege escalation in MinIO"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "minio",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< RELEASE.2021-12-27T07-23-18Z"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "minio"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "MinIO is a Kubernetes native application for cloud storage. Prior to version `RELEASE.2021-12-27T07-23-18Z`, a malicious client can hand-craft an HTTP API call that allows for updating policy for a user and gaining higher privileges. The patch in version `RELEASE.2021-12-27T07-23-18Z` changes the accepted request body type and removes the ability to apply policy changes through this API. There is a workaround for this vulnerability: Changing passwords can be disabled by adding an explicit `Deny` rule to disable the API for users."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-269: Improper Privilege Management"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx",
                "refsource": "CONFIRM",
                "url": "https://github.com/minio/minio/security/advisories/GHSA-j6jc-jqqc-p6cx"
            },
            {
                "name": "https://github.com/minio/minio/pull/13976",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/pull/13976"
            },
            {
                "name": "https://github.com/minio/minio/pull/7949",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/pull/7949"
            },
            {
                "name": "https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/commit/5a96cbbeaabd0a82b0fe881378e7c21c85091abf"
            },
            {
                "name": "https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z",
                "refsource": "MISC",
                "url": "https://github.com/minio/minio/releases/tag/RELEASE.2021-12-27T07-23-18Z"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-j6jc-jqqc-p6cx",
        "discovery": "UNKNOWN"
    }
}