FKIE_CVE-2025-4600

Vulnerability from fkie_nvd - Published: 2025-05-16 14:15 - Updated: 2025-09-26 17:18
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
A request smuggling vulnerability existed in the Google Cloud Classic Application Load Balancer due to improper handling of chunked-encoded HTTP requests. This allowed attackers to craft requests that could be misinterpreted by backend servers. The issue was fixed by disallowing stray data after a chunk, and is no longer exploitable. No action is required as Classic Application Load Balancer service after 2025-04-26 is not vulnerable.
References
cve-coordination@google.comhttps://cloud.google.com/support/bulletins#gcp-2025-027Vendor Advisory
Impacted products
Vendor Product Version
google application_load_balancer *
To clipboard 

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      "value": "Exist\u00eda una vulnerabilidad de contrabando de solicitudes en Google Cloud Classic Application Load Balancer debido a la gesti\u00f3n incorrecta de solicitudes HTTP con codificaci\u00f3n fragmentada. Esto permit\u00eda a los atacantes manipular solicitudes que los servidores backend pod\u00edan malinterpretar. El problema se solucion\u00f3 deshabilitando los datos dispersos despu\u00e9s de un fragmento y ya no es explotable. No se requiere ninguna acci\u00f3n, ya que el servicio del balanceador de carga de aplicaciones cl\u00e1sico despu\u00e9s del 26/04/2025 no es vulnerable."
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  "id": "CVE-2025-4600",
  "lastModified": "2025-09-26T17:18:42.847",
  "metrics": {
    "cvssMetricV31": [
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          "Recovery": "NOT_DEFINED",
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          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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          "providerUrgency": "NOT_DEFINED",
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          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
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  "published": "2025-05-16T14:15:32.580",
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  • 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 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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