{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-43777",
        "STATE": "PUBLIC",
        "TITLE": "Vulnerability in Redash OAuth2 flows due to misuse of state field (should be a nonce)"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "redash",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "<= 10.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "getredash"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Redash is a package for data visualization and sharing. In Redash version 10.0 and prior, the implementation of Google Login (via OAuth) incorrectly uses the `state` parameter to pass the next URL to redirect the user to after login. The `state` parameter should be used for a Cross-Site Request Forgery (CSRF) token, not a static and easily predicted value. This vulnerability does not affect users who do not use Google Login for their instance of Redash. A patch in the `master` and `release/10.x.x` branches addresses this by replacing `Flask-Oauthlib` with `Authlib` which automatically provides and validates a CSRF token for the state variable. The new implementation stores the next URL on the user session object. As a workaround, one may disable Google Login to mitigate the vulnerability."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-352: Cross-Site Request Forgery (CSRF)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/getredash/redash/security/advisories/GHSA-vhc7-w7r8-8m34",
                "refsource": "CONFIRM",
                "url": "https://github.com/getredash/redash/security/advisories/GHSA-vhc7-w7r8-8m34"
            },
            {
                "name": "https://github.com/getredash/redash/commit/da696ff7f84787cbf85967460fac52886cbe063e",
                "refsource": "MISC",
                "url": "https://github.com/getredash/redash/commit/da696ff7f84787cbf85967460fac52886cbe063e"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-vhc7-w7r8-8m34",
        "discovery": "UNKNOWN"
    }
}