CVE-2022-31081 (GCVE-0-2022-31081)

Vulnerability from cvelistv5 – Published: 2022-06-27 00:00 – Updated: 2025-04-22 17:54
VLAI?
Title
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in HTTP::Daemon
Summary
HTTP::Daemon is a simple http server class written in perl. Versions prior to 6.15 are subject to a vulnerability which could potentially be exploited to gain privileged access to APIs or poison intermediate caches. It is uncertain how large the risks are, most Perl based applications are served on top of Nginx or Apache, not on the `HTTP::Daemon`. This library is commonly used for local development and tests. Users are advised to update to resolve this issue. Users unable to upgrade may add additional request handling logic as a mitigation. After calling `my $rqst = $conn->get_request()` one could inspect the returned `HTTP::Request` object. Querying the 'Content-Length' (`my $cl = $rqst->header('Content-Length')`) will show any abnormalities that should be dealt with by a `400` response. Expected strings of 'Content-Length' SHOULD consist of either a single non-negative integer, or, a comma separated repetition of that number. (that is `42` or `42, 42, 42`). Anything else MUST be rejected.
Severity ?
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Assigner
References
Impacted products
Vendor Product Version
libwww-perl HTTP-Daemon Affected: < 6.15
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Los usuarios que no puedan actualizar pueden a\u00f1adir una l\u00f3gica de administraci\u00f3n de peticiones adicional como mitigaci\u00f3n. Tras llamar a \\\"my $rqst = $conn-)get_request()\\\" pod\u00eda inspeccionarse el objeto \\\"HTTP::Request\\\" devuelto. Consultando el \\\"Content-Length\\\" (\\\"my $cl = $rqst-)header(\\\"Content-Length\\\")\\\") mostrar\u00e1 cualquier anormalidad que deba ser tratada con una respuesta \\\"400\\\". Las cadenas esperadas de \\\"Content-Length\\\" DEBER\u00cdAN consistir en un \u00fanico n\u00famero entero no negativo, o bien, una repetici\u00f3n separada por comas de ese n\u00famero. (es decir, \\\"42\\\" o \\\"42, 42, 42\\\"). 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Versions prior to 6.15 are subject to a vulnerability which could potentially be exploited to gain privileged access to APIs or poison intermediate caches. It is uncertain how large the risks are, most Perl based applications are served on top of Nginx or Apache, not on the `HTTP::Daemon`. This library is commonly used for local development and tests. Users are advised to update to resolve this issue. Users unable to upgrade may add additional request handling logic as a mitigation. After calling `my $rqst = $conn-\u003eget_request()` one could inspect the returned `HTTP::Request` object. Querying the \u0027Content-Length\u0027 (`my $cl = $rqst-\u003eheader(\u0027Content-Length\u0027)`) will show any abnormalities that should be dealt with by a `400` response. Expected strings of \u0027Content-Length\u0027 SHOULD consist of either a single non-negative integer, or, a comma separated repetition of that number. (that is `42` or `42, 42, 42`). 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      "cveMetadata": "{\"cveId\": \"CVE-2022-31081\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-22T17:54:07.967Z\", \"dateReserved\": \"2022-05-18T00:00:00.000Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2022-06-27T00:00:00.000Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.




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

Author Source Type Date Other

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.
  • 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.



Detection rules are retrieved from Rulezet.