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CVE-2024-52804

Estado: ModificadaAlta (7.5)—

Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de complejidad cuadrática en parsing de cookies HTTP sin autenticación (AV:N, PR:N, UI:N) que causa consumo excesivo de CPU, bloqueando el procesamiento de solicitudes legítimas en una aplicación web expuesta (T1190). El impacto es DoS de aplicación basado en recursos (T1499.004).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Tornadoweb — Tornado

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2024-52804",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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          "id": "CVE-2024-52804",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
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              "technicalImpact": "partial"
            }
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          "version": "2.0.3",
          "timestamp": "2024-11-25T17:54:41.084248Z"
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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    },
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    }
  ],
  "lastModified": "2026-06-17T08:07:39.533",
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