CVE-2022-27779 (GCVE-0-2022-27779)

Vulnerability from cvelistv5 – Published: 2022-06-01 00:00 – Updated: 2024-08-03 05:33
VLAI
Summary
libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without [Public Suffix List](https://publicsuffix.org/)awareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-201 - Information Exposure Through Sent Data (CWE-201)
Assigner
References
Impacted products
Vendor Product Version
n/a https://github.com/curl/curl Affected: Fixed in 7.83.1
Show details on NVD website
To clipboard 

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            "value": "libcurl permite err\u00f3neamente que se establezcan cookies para Dominios de Alto Nivel (TLDs) si el nombre de host es proporcionado con un punto al final. curl puede recibir y enviar cookies. \"cookie engine\" de curl puede construirse con o sin conocimiento de la [Lista de Sufijos P\u00fablicos] (https://publicsuffix.org/). Si no es proporcionado soporte de PSL, se presenta una comprobaci\u00f3n m\u00e1s rudimentaria para al menos evitar que sean establecidas cookies en los TLD. Esta comprobaci\u00f3n no funcionaba si el nombre del host en la URL usaba un punto al final, lo que pod\u00eda permitir que sitios arbitrarios establecieran cookies que sean enviadas a un sitio o dominio diferente y no relacionado"
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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.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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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