{
  "id": "CVE-2017-18078",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-01-29T05:29:00.213",
  "lastModified": "2023-11-07T02:41:50.057",
  "vulnStatus": "Modified",
  "descriptions": [
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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."
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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