CVE-2021-3129

Estado: AnalizadaCrítica (9.8)⚠ Explotación activa

Ignition before 2.5.2, as used in Laravel and other products, allows unauthenticated remote attackers to execute arbitrary code because of insecure usage of file_get_contents() and file_put_contents(). This is exploitable on sites using debug mode with Laravel before 8.4.2.

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: 100%
Percentil entre todas las CVEs puntuadas: 100
Fecha de la puntuación: 29/9/2026

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: 18/9/2023
Plazo de remediación: 9/10/2023
Uso conocido en ransomware: Known

🎯 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 principalT1059.007 JavaScriptexecution90 %
Impacto secundarioT1005 Data from Local Systemcollection70 %
Impacto secundarioT1565.001 Stored Data Manipulationimpact75 %

AV:N/PR:N/UI:N permite ejecución remota sin autenticación en aplicación expuesta (Ignition/Laravel). file_get_contents/file_put_contents permiten lectura/escritura/ejecución de código arbitrario en debug mode.

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

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

Tecnologías afectadas (1)

Facade — Ignition

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

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