{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-56140",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2024-12-16T17:30:30.068Z",
        "datePublished": "2024-12-18T20:41:06.806Z",
        "dateUpdated": "2024-12-18T21:03:36.201Z"
    },
    "containers": {
        "cna": {
            "title": "Bypass of CSRF Middleware in Astro",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-352",
                            "lang": "en",
                            "description": "CWE-352: Cross-Site Request Forgery (CSRF)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/withastro/astro/security/advisories/GHSA-c4pw-33h3-35xw",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/withastro/astro/security/advisories/GHSA-c4pw-33h3-35xw"
                },
                {
                    "name": "https://github.com/withastro/astro/commit/e7d14c374b9d45e27089994a4eb72186d05514de",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/withastro/astro/commit/e7d14c374b9d45e27089994a4eb72186d05514de"
                },
                {
                    "name": "https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests"
                },
                {
                    "name": "https://github.com/withastro/astro/blob/6031962ab5f56457de986eb82bd24807e926ba1b/packages/astro/src/core/app/middlewares.ts",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/withastro/astro/blob/6031962ab5f56457de986eb82bd24807e926ba1b/packages/astro/src/core/app/middlewares.ts"
                }
            ],
            "affected": [
                {
                    "vendor": "withastro",
                    "product": "astro",
                    "versions": [
                        {
                            "version": "< 4.16.17",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2024-12-18T20:41:06.806Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Astro is a web framework for content-driven websites. In affected versions a bug in Astro’s CSRF-protection middleware allows requests to bypass CSRF checks. When the `security.checkOrigin` configuration option is set to `true`, Astro middleware will perform a CSRF check. However, a vulnerability exists that can bypass this security. A semicolon-delimited parameter is allowed after the type in `Content-Type`. Web browsers will treat a `Content-Type` such as `application/x-www-form-urlencoded; abc` as a `simple request` and will not perform preflight validation. In this case, CSRF is not blocked as expected. Additionally, the `Content-Type` header is not required for a request. This issue has been addressed in version 4.16.17 and all users are advised to upgrade. There are no known workarounds for this vulnerability."
                }
            ],
            "source": {
                "advisory": "GHSA-c4pw-33h3-35xw",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-12-18T21:03:26.338528Z",
                                "id": "CVE-2024-56140",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-12-18T21:03:36.201Z"
                }
            }
        ]
    }
}