CVE-2021-21359

{"containers": {"cna": {"affected": [{"product": "TYPO3.CMS", "vendor": "TYPO3", "versions": [{"status": "affected", "version": ">= 9.0.0, <= 9.5.24"}, {"status": "affected", "version": ">= 10.0.0, <= 10.4.13"}, {"status": "affected", "version": ">= 11.0.0, <= 11.1.0"}]}], "descriptions": [{"lang": "en", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This is fixed in versions 9.5.25, 10.4.14, 11.1.1."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-674", "description": "CWE-674 Uncontrolled Recursion", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-405", "description": "CWE-405 Asymmetric Resource Consumption (Amplification)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-03-23T01:55:19.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://packagist.org/packages/typo3/cms-core"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p"}, {"tags": ["x_refsource_MISC"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-005"}], "source": {"advisory": "GHSA-4p9g-qgx9-397p", "discovery": "UNKNOWN"}, "title": "Denial of Service in Page Error Handling", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-21359", "STATE": "PUBLIC", "TITLE": "Denial of Service in Page Error Handling"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "TYPO3.CMS", "version": {"version_data": [{"version_value": ">= 9.0.0, <= 9.5.24"}, {"version_value": ">= 10.0.0, <= 10.4.13"}, {"version_value": ">= 11.0.0, <= 11.1.0"}]}}]}, "vendor_name": "TYPO3"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This is fixed in versions 9.5.25, 10.4.14, 11.1.1."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-674 Uncontrolled Recursion"}]}, {"description": [{"lang": "eng", "value": "CWE-405 Asymmetric Resource Consumption (Amplification)"}]}]}, "references": {"reference_data": [{"name": "https://packagist.org/packages/typo3/cms-core", "refsource": "MISC", "url": "https://packagist.org/packages/typo3/cms-core"}, {"name": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p", "refsource": "CONFIRM", "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p"}, {"name": "https://typo3.org/security/advisory/typo3-core-sa-2021-005", "refsource": "MISC", "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-005"}]}, "source": {"advisory": "GHSA-4p9g-qgx9-397p", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:09:15.893Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://packagist.org/packages/typo3/cms-core"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-005"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-21359", "datePublished": "2021-03-23T01:55:19.000Z", "dateReserved": "2020-12-22T00:00:00.000Z", "dateUpdated": "2024-08-03T18:09:15.893Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "TYPO3.CMS", "vendor": "TYPO3", "versions": [{"status": "affected", "version": ">= 9.0.0, <= 9.5.24"}, {"status": "affected", "version": ">= 10.0.0, <= 10.4.13"}, {"status": "affected", "version": ">= 11.0.0, <= 11.1.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "matchCriteriaId": "8CB3125B-114D-4991-BD60-9535D97DD348", "versionEndExcluding": "9.5.25", "versionStartIncluding": "9.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "matchCriteriaId": "C031A87F-5A82-48F8-AB02-FED0CDFE08A2", "versionEndExcluding": "10.4.14", "versionStartIncluding": "10.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*", "matchCriteriaId": "F696292E-3CC6-416B-9F99-6C1287B1D78D", "versionEndExcluding": "11.1.1", "versionStartIncluding": "11.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This is fixed in versions 9.5.25, 10.4.14, 11.1.1."}, {"lang": "es", "value": "TYPO3 es un sistema de gesti\u00f3n de contenidos web de c\u00f3digo abierto basado en PHP. En TYPO3 versiones anteriores a la 9.5.25, 10.4.14, 11.1.1 la solicitud de recursos inv\u00e1lidos o inexistentes a trav\u00e9s de HTTP desencadena el manejador de errores de la p\u00e1gina que de nuevo podr\u00eda recuperar el contenido que se muestra como mensaje de error de otra p\u00e1gina. Esto lleva a un escenario en el que la aplicaci\u00f3n se llama a s\u00ed misma de forma recursiva, amplificando el impacto del ataque inicial hasta que se superan los l\u00edmites del servidor web. Esto se ha corregido en las versiones 9.5.25, 10.4.14 y 11.1.1"}], "id": "CVE-2021-21359", "lastModified": "2026-06-17T03:35:23.133", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-23T02:15:12.893", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p"}, {"source": "security-advisories@github.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://packagist.org/packages/typo3/cms-core"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-005"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://packagist.org/packages/typo3/cms-core"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://typo3.org/security/advisory/typo3-core-sa-2021-005"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-405"}, {"lang": "en", "value": "CWE-674"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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