CVE-2024-6759 (GCVE-0-2024-6759)

Vulnerability from cvelistv5 – Published: 2024-08-11 02:45 – Updated: 2024-08-16 17:02
VLAI
Title
NFS client accepts file names containing path separators
Summary
When mounting a remote filesystem using NFS, the kernel did not sanitize remotely provided filenames for the path separator character, "/". This allows readdir(3) and related functions to return filesystem entries with names containing additional path components. The lack of validation described above gives rise to a confused deputy problem. For example, a program copying files from an NFS mount could be tricked into copying from outside the intended source directory, and/or to a location outside the intended destination directory.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-12 14:14 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Impacted products
Vendor Product Version CPE status
FreeBSD FreeBSD Affected: 14.1-RELEASE , < p3 (release)
Affected: 14.0-RELEASE , < p9 (release)
Affected: 13.3-RELEASE , < p5 (release)
guessed Create a notification for this product.
freebsd freebsd Affected: 14.1 , < 14.1p3 (custom)
    cpe:2.3:o:freebsd:freebsd:14.1:*:*:*:*:*:*:*
Create a notification for this product.
freebsd freebsd Affected: 14.0 , < 14.0p9 (custom)
    cpe:2.3:o:freebsd:freebsd:13.3:*:*:*:*:*:*:*
Create a notification for this product.
freebsd freebsd Affected: 13.3 , < 13.3p5 (custom)
    cpe:2.3:o:freebsd:freebsd:13.3:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2024-08-07 15:00
Show details on NVD website

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            "lang": "es",
            "value": "Al montar un sistema de archivos remoto usando NFS, el kernel no desinfect\u00f3 los nombres de archivos proporcionados de forma remota para el car\u00e1cter separador de ruta, \"/\". Esto permite que readdir(3) y funciones relacionadas devuelvan entradas del sistema de archivos con nombres que contienen componentes de ruta adicionales. La falta de validaci\u00f3n descrita anteriormente da lugar a un confuso problema de diputados. Por ejemplo, se podr\u00eda enga\u00f1ar a un programa que copia archivos desde un montaje NFS para que los copie desde fuera del directorio de origen previsto y/o a una ubicaci\u00f3n fuera del directorio de destino previsto."
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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