fkie_cve-2018-13405
Vulnerability from fkie_nvd
Published
2018-07-06 14:29
Modified
2024-11-21 03:47
Severity ?
Summary
The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.
References
Impacted products
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],
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"descriptions": [
{
"lang": "en",
"value": "The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID."
},
{
"lang": "es",
"value": "La funci\u00f3n inode_init_owner en fs/inode.c en el kernel de Linux hasta la versi\u00f3n 3.16 permite a los usuarios locales crear archivos con una propiedad de grupo no deseada, en un escenario donde un directorio es SGID a un cierto grupo y es escribible por un usuario que no es miembro de ese grupo. En este caso, el no miembro puede desencadenar la creaci\u00f3n de un archivo simple cuya propiedad de grupo sea ese grupo. El comportamiento previsto era que el no miembro puede activar la creaci\u00f3n de un directorio (pero no un archivo plano) cuya propiedad de grupo sea ese grupo. El no miembro puede aumentar sus privilegios haciendo el archivo plano ejecutable y el SGID"
}
],
"id": "CVE-2018-13405",
"lastModified": "2024-11-21T03:47:02.490",
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"version": "2.0"
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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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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