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CVE-2022-4262

Estado: AnalizadaAlta (8.8)⚠ Explotación activa💥 PoC

La confusión de tipos en V8 en Google Chrome anterior a 108.0.5359.94 permitía a un atacante remoto explotar potencialmente la corrupción del heap a través de una página HTML manipulada. (Severidad de seguridad de Chrome: Alta)

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).

CISA KEV — explotada activamente

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

🎯 Técnicas ATT&CK

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

Requiere interacción del usuario (UI:R) con página HTML malformada. Type confusion en V8 permite ejecución de código arbitrario; activamente explotado en ransomware según KEV.

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

Restrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or Program

Tecnologías afectadas (1)

Google — Chrome

CWE

Referencias

JSON original (NVD)

Mostrar
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      "value": "Type confusion in V8 in Google Chrome prior to 108.0.5359.94 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)"
    },
    {
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    }
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  "cisaActionDue": "2022-12-26",
  "cisaExploitAdd": "2022-12-05",
  "configurations": [
    {
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  "sourceIdentifier": "chrome-cve-admin@google.com",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
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}