{
    "CVE_data_meta": {
        "ASSIGNER": "security@php.net",
        "DATE_PUBLIC": "2021-09-21T11:32:00.000Z",
        "ID": "CVE-2021-21706",
        "STATE": "PUBLIC",
        "TITLE": "ZipArchive::extractTo may extract outside of destination dir"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "PHP",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "Windows",
                                            "version_affected": "<",
                                            "version_name": "7.3.x",
                                            "version_value": "7.3.31"
                                        },
                                        {
                                            "platform": "Windows",
                                            "version_affected": "<",
                                            "version_name": "7.4.x",
                                            "version_value": "7.4.24"
                                        },
                                        {
                                            "platform": "Windows",
                                            "version_affected": "<",
                                            "version_name": "8.0.X",
                                            "version_value": "8.0.11"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "PHP Group"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "reported by vi at hackberry dot xyz"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In PHP versions 7.3.x below 7.3.31, 7.4.x below 7.4.24 and 8.0.x below 8.0.11, in Microsoft Windows environment, ZipArchive::extractTo may be tricked into writing a file outside target directory when extracting a ZIP file, thus potentially causing files to be created or overwritten, subject to OS permissions."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-24 Path Traversal: '../filedir'"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://bugs.php.net/bug.php?id=81420",
                "name": "https://bugs.php.net/bug.php?id=81420"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20211029-0007/",
                "url": "https://security.netapp.com/advisory/ntap-20211029-0007/"
            }
        ]
    },
    "source": {
        "defect": [
            "https://bugs.php.net/bug.php?id=81420"
        ],
        "discovery": "EXTERNAL"
    }
}