{
    "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",
                "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",
        "dateReserved": "2020-12-22T00:00:00",
        "dateUpdated": "2024-08-03T18:09:15.893Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}