cvelist/2020/7xxx/CVE-2020-7777.json

{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ASSIGNER": "report@snyk.io",
        "DATE_PUBLIC": "2020-11-23T15:39:43.075632Z",
        "ID": "CVE-2020-7777",
        "STATE": "PUBLIC",
        "TITLE": "Arbitrary Code Execution"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "jsen",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": ">=",
                                            "version_value": "0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Arbitrary Code Execution"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "CONFIRM",
                "url": "https://snyk.io/vuln/SNYK-JS-JSEN-1014670"
            },
            {
                "refsource": "CONFIRM",
                "url": "https://github.com/bugventure/jsen/blob/master/lib/jsen.js%23L875"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "This affects all versions of package jsen.\n If an attacker can control the schema file, it could run arbitrary JavaScript code on the victim machine.\r\nIn the module description and README file there is no mention about the risks of untrusted schema files, so I assume that this is applicable.\r\n\r\nIn particular the required field of the schema is not properly sanitized.\r\nThe resulting string that is build based on the schema definition is then passed to a Function.apply();, leading to an Arbitrary Code Execution.\r\n\r\n"
            }
        ]
    },
    "impact": {
        "cvss": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "HIGH",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "availabilityImpact": "HIGH"
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Alessio Della Libera (d3lla)"
        }
    ]
}