CVE-2020-15415

Estado: AnalizadaCrítica (9.8)⚠ Explotación activa

On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 84%
Percentil entre todas las CVEs puntuadas: 100
Fecha de la puntuación: 3/10/2026

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).

CISA KEV — explotada activamente

Añadida al catálogo: 30/9/2024
Plazo de remediación: 21/10/2024
Uso conocido en ransomware: Unknown

🎯 Técnicas ATT&CK

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

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access95 %
Impacto principalT1059 Command and Scripting Interpreterexecution95 %
Impacto secundarioT1565.001 Stored Data Manipulationimpact75 %

Vulnerabilidad en aplicación web expuesta (cgi-bin/mainfunction.cgi) sin autenticación (PR:N) permite RCE mediante metacaracteres en nombre de archivo. CWE-78 (command injection) confirma ejecución de comandos; impacto confidencialidad, integridad y disponibilidad críticos (C:H/I:H/A:H).

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

Privileged Account Management Vulnerability Scanning Restrict Web-Based Content Restrict File and Directory Permissions Remote Data Storage Network Segmentation

Tecnologías afectadas (3)

Draytek — Vigor2960 Firmware Draytek — Vigor300b Firmware Draytek — Vigor3900 Firmware

CWE

CWE-78
CWE-78

Referencias

JSON original (NVD)

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