CVE-2019-16759
vBulletin 5.x through 5.5.4 allows remote command execution via the widgetConfig[code] parameter in an ajax/render/widget_php routestring request.
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: 3/11/2021
- Plazo de remediación: 3/5/2022
- 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.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1059Command and Scripting Interpreterexecution95 %
Vector AV:N/PR:N/UI:N indica exposición pública sin autenticación. Parámetro widgetConfig[code] permite ejecución remota de comandos directamente (CWE-94: improper control of generation of code).
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
Tecnologías afectadas (1)
CWE
- CWE-94
- CWE-94
Referencias
- http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2020/Aug/5
- https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/
- https://seclists.org/fulldisclosure/2019/Sep/31
- https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/
- http://packetstormsecurity.com/files/154623/vBulletin-5.x-0-Day-Pre-Auth-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/154648/vBulletin-5.x-Pre-Auth-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/155633/vBulletin-5.5.4-Remote-Command-Execution.html
- http://packetstormsecurity.com/files/158829/vBulletin-5.x-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158830/vBulletin-5.x-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/158866/vBulletin-5.x-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2020/Aug/5
- https://arstechnica.com/information-technology/2019/09/public-exploit-code-spawns-mass-attacks-against-high-severity-vbulletin-bug/
- https://seclists.org/fulldisclosure/2019/Sep/31
- https://www.theregister.co.uk/2019/09/24/vbulletin_vbug_zeroday/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-16759
JSON original (NVD)
Mostrar
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