GSD-2021-21359
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
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.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-21359",
"description": "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.",
"id": "GSD-2021-21359"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-21359"
],
"details": "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.",
"id": "GSD-2021-21359",
"modified": "2023-12-13T01:23:11.211456Z",
"schema_version": "1.4.0"
}
},
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"STATE": "PUBLIC",
"TITLE": "Denial of Service in Page Error Handling"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "TYPO3.CMS",
"version": {
"version_data": [
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"version_value": "\u003e= 9.0.0, \u003c= 9.5.24"
},
{
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"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"
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"problemtype": {
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"description": [
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"lang": "eng",
"value": "CWE-674 Uncontrolled Recursion"
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},
{
"description": [
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"value": "CWE-405 Asymmetric Resource Consumption (Amplification)"
}
]
}
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"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"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=9.0.0,\u003c9.5.25||\u003e=10.0.0,\u003c10.4.14||\u003e=11.0.0,\u003c11.1.1",
"affected_versions": "All versions starting from 9.0.0 before 9.5.25, all versions starting from 10.0.0 before 10.4.14, all versions starting from 11.0.0 before 11.1.1",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-405",
"CWE-674",
"CWE-937"
],
"date": "2021-03-26",
"description": "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.",
"fixed_versions": [
"9.5.25",
"10.4.14",
"11.1.1"
],
"identifier": "CVE-2021-21359",
"identifiers": [
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"GHSA-4p9g-qgx9-397p"
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"not_impacted": "All versions before 9.0.0, all versions starting from 9.5.25 before 10.0.0, all versions starting from 10.4.14 before 11.0.0, all versions starting from 11.1.1",
"package_slug": "packagist/typo3/cms-core",
"pubdate": "2021-03-23",
"solution": "Upgrade to versions 9.5.25, 10.4.14, 11.1.1 or above.",
"title": "Asymmetric Resource Consumption (Amplification)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-21359",
"https://typo3.org/security/advisory/typo3-core-sa-2021-005"
],
"uuid": "53606c34-6763-49a8-aa93-5454041d977b"
},
{
"affected_range": "\u003e=9.0.0,\u003c9.5.25||\u003e=10.0.0,\u003c10.4.14||\u003e=11.0.0,\u003c11.1.1",
"affected_versions": "All versions starting from 9.0.0 before 9.5.25, all versions starting from 10.0.0 before 10.4.14, all versions starting from 11.0.0 before 11.1.1",
"cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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"cwe_ids": [
"CWE-1035",
"CWE-405",
"CWE-674",
"CWE-937"
],
"date": "2021-03-26",
"description": "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.",
"fixed_versions": [
"9.5.25",
"10.4.14",
"11.1.1"
],
"identifier": "CVE-2021-21359",
"identifiers": [
"CVE-2021-21359",
"GHSA-4p9g-qgx9-397p"
],
"not_impacted": "All versions before 9.0.0, all versions starting from 9.5.25 before 10.0.0, all versions starting from 10.4.14 before 11.0.0, all versions starting from 11.1.1",
"package_slug": "packagist/typo3/cms",
"pubdate": "2021-03-23",
"solution": "Upgrade to versions 9.5.25, 10.4.14, 11.1.1 or above.",
"title": "Asymmetric Resource Consumption (Amplification)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-21359",
"https://typo3.org/security/advisory/typo3-core-sa-2021-005"
],
"uuid": "5028d403-ff8f-4af9-b1a6-8b11ec5ed2be"
}
]
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"versionStartIncluding": "9.0.0",
"vulnerable": true
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"name": "https://typo3.org/security/advisory/typo3-core-sa-2021-005",
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"url": "https://typo3.org/security/advisory/typo3-core-sa-2021-005"
},
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"name": "https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p",
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"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,
"severity": "MEDIUM",
"userInteractionRequired": false
},
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"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
}
},
"lastModifiedDate": "2021-03-26T17:54Z",
"publishedDate": "2021-03-23T02:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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