CVE-2018-25114
A remote code execution vulnerability exists within osCommerce Online Merchant version 2.3.4.1 due to insecure default configuration and missing authentication in the installer workflow. By default, the /install/ directory remains accessible after installation. An unauthenticated attacker can invoke install_4.php, submit crafted POST data, and inject arbitrary PHP code into the configure.php file. When the application later includes this file, the injected payload is executed, resulting in full server-side compromise.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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: 9.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 4.15%
- Percentil entre todas las CVEs puntuadas: 91
- 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.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1505.003Web Shellpersistence85 %
Aplicación expuesta (/install/) sin autenticación permite inyección de PHP en configure.php (CWE-94). Ejecución remota de código en servidor web.
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-94, CWE-434
Referencias
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/oscommerce_installer_unauth_code_exec.rb
- https://www.exploit-db.com/exploits/44374
- https://www.oscommerce.com/
- https://www.vulncheck.com/advisories/oscommerce-installer-unauth-config-file-injection-php-code-execution
JSON original (NVD)
Mostrar
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"affected": [
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"published": "2025-07-23T14:15:32.447",
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"value": "Existe una vulnerabilidad de ejecución remota de código en osCommerce Online Merchant versión 2.3.4.1 debido a una configuración predeterminada insegura y a la falta de autenticación en el flujo de trabajo del instalador. Por defecto, el directorio /install/ permanece accesible después de la instalación. Un atacante no autenticado puede invocar install_4.php, enviar datos POST manipulados e inyectar código PHP arbitrario en el archivo configure.php. Cuando la aplicación incluye posteriormente este archivo, se ejecuta el payload inyectado, lo que resulta en una vulnerabilidad completa del servidor."
}
],
"lastModified": "2026-06-17T01:54:44.963",
"sourceIdentifier": "disclosure@vulncheck.com"
}