cvelist/2021/23xxx/CVE-2021-23436.json

{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "report@snyk.io",
        "DATE_PUBLIC": "2021-09-01T17:28:18.037848Z",
        "ID": "CVE-2021-23436",
        "STATE": "PUBLIC",
        "TITLE": "Prototype Pollution"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "immer",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "9.0.6"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Prototype Pollution"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://snyk.io/vuln/SNYK-JS-IMMER-1540542",
                "name": "https://snyk.io/vuln/SNYK-JS-IMMER-1540542"
            },
            {
                "refsource": "MISC",
                "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266",
                "name": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1579266"
            },
            {
                "refsource": "MISC",
                "url": "https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237",
                "name": "https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "This affects the package immer before 9.0.6. A type confusion vulnerability can lead to a bypass of CVE-2020-28477 when the user-provided keys used in the path parameter are arrays. In particular, this bypass is possible because the condition (p === \"__proto__\" || p === \"constructor\") in applyPatches_ returns false if p is ['__proto__'] (or ['constructor']). The === operator (strict equality operator) returns false if the operands have different type."
            }
        ]
    },
    "impact": {
        "cvss": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "attackVector": "NETWORK",
            "attackComplexity": "HIGH",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "availabilityImpact": "LOW"
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Alessio Della Libera of Snyk Research Team"
        }
    ]
}