CVE-2020-5722
The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.
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: 7/10/2026
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: 28/1/2022
- Plazo de remediación: 28/7/2022
- Uso conocido en ransomware: Unknown
💥 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.
- Módulo de Metasploit (exploit fiable y al alcance de cualquiera) · Grandstream UCM62xx IP PBX sendPasswordEmail RCE
- Publicado en Exploit-DB · UCM6202 1.0.18.13 - Remote Command Injection (24/3/2020)
- Plantilla de Nuclei (detección automática y masiva) · Grandstream UCM6200 - SQL Injection
🎯 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 secundario
T1005Data from Local Systemcollection85 % - Impacto secundario
T1565.001Stored Data Manipulationimpact80 %
SQL injection remota sin autenticación (CWE-89) en interfaz HTTP permite ejecución de comandos shell como root. Vector CVSS AV:N/PR:N/UI:N confirma explotabilidad remota directa (T1190). Impactos: ejecución de comandos (T1059.007), lectura de datos SQL (T1005), modificación de correos de recuperació
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-89
- CWE-89
Referencias
- http://packetstormsecurity.com/files/156876/UCM6202-1.0.18.13-Remote-Command-Injection.html
- http://packetstormsecurity.com/files/165708/Grandstream-UCM62xx-IP-PBX-sendPasswordEmail-Remote-Code-Execution.html
- https://www.tenable.com/security/research/tra-2020-15
- http://packetstormsecurity.com/files/156876/UCM6202-1.0.18.13-Remote-Command-Injection.html
- http://packetstormsecurity.com/files/165708/Grandstream-UCM62xx-IP-PBX-sendPasswordEmail-Remote-Code-Execution.html
- https://www.tenable.com/security/research/tra-2020-15
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5722
JSON original (NVD)
Mostrar
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