fkie_cve-2021-30159
Vulnerability from fkie_nvd
Published
2021-04-09 07:15
Modified
2024-11-21 06:03
Severity ?
Summary
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Users can bypass intended restrictions on deleting pages in certain "fast double move" situations. MovePage::isValidMoveTarget() uses FOR UPDATE, but it's only called if Title::getArticleID() returns non-zero with no special flags. Next, MovePage::moveToInternal() will delete the page if getArticleID(READ_LATEST) is non-zero. Therefore, if the page is missing in the replica DB, isValidMove() will return true, and then moveToInternal() will unconditionally delete the page if it can be found in the master.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mediawiki | mediawiki | * | |
| mediawiki | mediawiki | * | |
| debian | debian_linux | 9.0 | |
| debian | debian_linux | 10.0 | |
| fedoraproject | fedora | 33 | |
| fedoraproject | fedora | 34 |
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Users can bypass intended restrictions on deleting pages in certain \"fast double move\" situations. MovePage::isValidMoveTarget() uses FOR UPDATE, but it\u0027s only called if Title::getArticleID() returns non-zero with no special flags. Next, MovePage::moveToInternal() will delete the page if getArticleID(READ_LATEST) is non-zero. Therefore, if the page is missing in the replica DB, isValidMove() will return true, and then moveToInternal() will unconditionally delete the page if it can be found in the master."
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"lang": "es",
"value": "Se detect\u00f3 un problema en MediaWiki versiones anteriores a 1.31.12 y versiones 1.32.x hasta 1.35.x versiones anteriores a 1.35.2.\u0026#xa0;Unos usuarios pueden omitir unas restricciones previstas sobre la eliminaci\u00f3n de p\u00e1ginas en determinadas situaciones de \"fast double move\".\u0026#xa0;La funci\u00f3n MovePage::isValidMoveTarget() usa FOR UPDATE, pero solo es llamada si la funci\u00f3n Title::getArticleID() devuelve un valor distinto de cero sin indicadores especiales.\u0026#xa0;A continuaci\u00f3n, MovePage::moveToInternal() eliminar\u00e1 la p\u00e1gina si getArticleID(READ_LATEST) no es cero.\u0026#xa0;Por lo tanto, si la p\u00e1gina falta en la r\u00e9plica de la base de datos, la funci\u00f3n isValidMove() devolver\u00e1 verdadero, y luego moveToInternal() eliminar\u00e1 incondicionalmente la p\u00e1gina si se puede encontrar en el maestro"
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"id": "CVE-2021-30159",
"lastModified": "2024-11-21T06:03:25.443",
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"published": "2021-04-09T07:15:16.277",
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}
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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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