fkie_cve-2017-18078
Vulnerability from fkie_nvd
Published
2018-01-29 05:29
Modified
2024-11-21 03:19
Severity ?
Summary
systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| systemd_project | systemd | * | |
| debian | debian_linux | 8.0 | |
| opensuse | leap | 42.3 |
{
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"versionEndExcluding": "237",
"vulnerable": true
}
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"cveTags": [],
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{
"lang": "en",
"value": "systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protected_hardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks write access, as demonstrated by changing the ownership of the /etc/passwd file."
},
{
"lang": "es",
"value": "systemd-tmpfiles en systemd en versiones anteriores a la 237 intenta soportar cambios de propiedad/permisos en archivos con v\u00ednculos permanentes incluso aunque el sysctl fs.protected_hardlinks est\u00e9 apagado. Esto permite que usuarios locales omitan las restricciones de acceso planeadas mediante vectores relacionados con un enlace permanente a un archivo para el que el usuario no tiene acceso de escritura, tal y como demuestra el cambio de propiedad del archivo /etc/passwd."
}
],
"id": "CVE-2017-18078",
"lastModified": "2024-11-21T03:19:18.847",
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"value": "CWE-59"
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],
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"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.