CVE-2024-8935

Estado: AplazadaAlta (7.7)—

CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss of confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the controller and the engineering workstation while a valid user is establishing a communication session. This vulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 7.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.50%
Percentil entre todas las CVEs puntuadas: 41
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1557 Adversary-in-the-Middlecredential access · collection90 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access85 %
Impacto secundarioT1499 Endpoint Denial of Serviceimpact75 %

MITM attack (AV:N, AT:P) intercepts Diffie-Hellman without authentication protection. Attackers spoof controller identity to bypass auth (CWE-290) and deny service; UI:P reflects user interaction during session establishment. VC:H/VI:H/VA:H confirm confidentiality, integrity, availability impacts.

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

User Training Filter Network Traffic Application Developer Guidance Active Directory Configuration User Account Management Privileged Account Management

CWE

CWE-290

Referencias

https://download.schneider-electric.com/doc/SEVD-2024-317-02/SEVD-2024-317-02.pdf

JSON original (NVD)

Mostrar

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          "options": [
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      "value": "CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss\nof confidentiality and integrity of controllers when conducting a Man-In-The-Middle attack between the\ncontroller and the engineering workstation while a valid user is establishing a communication session. This\nvulnerability is inherent to Diffie Hellman algorithm which does not protect against Man-In-The-Middle attacks."
    },
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      "lang": "es",
      "value": "CWE-290: Existe una vulnerabilidad de omisión de autenticación por suplantación de identidad que podría provocar una denegación de servicio y pérdida de confidencialidad e integridad de los controladores al realizar un ataque Man-In-The-Middle entre el controlador y la estación de trabajo de ingeniería mientras un usuario válido está estableciendo una sesión de comunicación. Esta vulnerabilidad es inherente al algoritmo Diffie Hellman, que no protege contra ataques Man-In-The-Middle."
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  "sourceIdentifier": "cybersecurity@se.com"
}