{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-5205",
        "STATE": "PUBLIC",
        "TITLE": "Session fixation attack in Pow (Hex package)"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Pow",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 1.0.16"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "danschultzer"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In Pow (Hex package) before 1.0.16, the use of Plug.Session in Pow.Plug.Session is susceptible to session fixation attacks if a persistent session store is used for Plug.Session, such as Redis or a database. Cookie store, which is used in most Phoenix apps, doesn't have this vulnerability."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-384 Session Fixation"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/danschultzer/pow/security/advisories/GHSA-v2wf-c3j6-wpvw",
                "refsource": "CONFIRM",
                "url": "https://github.com/danschultzer/pow/security/advisories/GHSA-v2wf-c3j6-wpvw"
            },
            {
                "name": "https://github.com/danschultzer/pow/commit/578ffd3d8bb8e8a26077b644222186b108da474f",
                "refsource": "MISC",
                "url": "https://github.com/danschultzer/pow/commit/578ffd3d8bb8e8a26077b644222186b108da474f"
            },
            {
                "name": "https://github.com/danschultzer/pow/blob/master/CHANGELOG.md#v1016-2020-01-07",
                "refsource": "MISC",
                "url": "https://github.com/danschultzer/pow/blob/master/CHANGELOG.md#v1016-2020-01-07"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-v2wf-c3j6-wpvw",
        "discovery": "UNKNOWN"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "Call Plug.Conn.configure_session(conn, renew: true) periodically and after privilege change. A custom authorization plug can be written where the create/3 method should return the conn only after Plug.Conn.configure_session/2 have been called on it."
        }
    ]
}