fkie_cve-2020-26121
Vulnerability from fkie_nvd
Published
2020-09-27 21:15
Modified
2024-11-21 05:19
Severity ?
Summary
An issue was discovered in the FileImporter extension for MediaWiki before 1.34.4. An attacker can import a file even when the target page is protected against "page creation" and the attacker should not be able to create it. This occurs because of a mishandled distinction between an upload restriction and a create restriction. An attacker cannot leverage this to overwrite anything, but can leverage this to force a wiki to have a page with a disallowed title.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mediawiki | mediawiki | * | |
| fedoraproject | fedora | 33 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"matchCriteriaId": "036C9229-D482-46F2-BA8C-A6800E5CFD1C",
"versionEndExcluding": "1.34.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in the FileImporter extension for MediaWiki before 1.34.4. An attacker can import a file even when the target page is protected against \"page creation\" and the attacker should not be able to create it. This occurs because of a mishandled distinction between an upload restriction and a create restriction. An attacker cannot leverage this to overwrite anything, but can leverage this to force a wiki to have a page with a disallowed title."
},
{
"lang": "es",
"value": "Se detect\u00f3 un problema en la extensi\u00f3n FileImporter para MediaWiki versiones anteriores a 1.34.4.\u0026#xa0;Un atacante puede importar un archivo incluso cuando la p\u00e1gina de destino est\u00e1 protegida contra \"page creation\" y el atacante no deber\u00eda poder crearlo.\u0026#xa0;Esto ocurre debido a una distinci\u00f3n manejada inapropiadamente entre una restricci\u00f3n de carga y una restricci\u00f3n de creaci\u00f3n.\u0026#xa0;Un atacante no puede aprovechar esto para sobrescribir cualquier cosa, pero puede aprovechar esto para obligar a un wiki a tener una p\u00e1gina con un t\u00edtulo no permitido"
}
],
"id": "CVE-2020-26121",
"lastModified": "2024-11-21T05:19:17.477",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"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": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-09-27T21:15:13.063",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://commons.wikimedia.org/w/index.php?oldid=454609892#File:Wiki.png"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://gerrit.wikimedia.org/r/q/Ib852a96afc4dca10516d0510e69c10f9892b351b"
},
{
"source": "cve@mitre.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/"
},
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"url": "https://phabricator.wikimedia.org/T262628"
},
{
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"tags": [
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"url": "https://commons.wikimedia.org/w/index.php?oldid=454609892#File:Wiki.png"
},
{
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"tags": [
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"url": "https://gerrit.wikimedia.org/r/q/Ib852a96afc4dca10516d0510e69c10f9892b351b"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RTTPZ7XMDS66I442OLLHXBDNP2LCBJU6/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Vendor Advisory"
],
"url": "https://phabricator.wikimedia.org/T262628"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-863"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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