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CVE-2025-47812

Estado: AnalizadaCrítica (10)⚠ Explotación activa

In Wing FTP Server before 7.4.4. the user and admin web interfaces mishandle '\0' bytes, ultimately allowing injection of arbitrary Lua code into user session files. This can be used to execute arbitrary system commands with the privileges of the FTP service (root or SYSTEM by default). This is thus a remote code execution vulnerability that guarantees a total server compromise. This is also exploitable via anonymous FTP accounts.

CVSS

Probabilidad de explotación (EPSS)

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

🎯 Técnicas ATT&CK

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

AV:N/PR:N permite T1190. Inyección de código Lua en sesiones FTP logra ejecución de comandos del sistema con privilegios del servicio (root/SYSTEM). Impacto de RCE total y compromiso del servidor.

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 ManagementBehavior Prevention on EndpointCode SigningAuditVulnerability ScanningUser Account Management

Tecnologías afectadas (1)

Wftpserver — Wing FTP Server

CWE

Referencias

JSON original (NVD)

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          "version": "2.0.3",
          "timestamp": "2025-07-17T03:55:37.528015Z"
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          "integrityImpact": "HIGH",
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  "published": "2025-07-10T17:15:47.210",
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      "value": "In Wing FTP Server before 7.4.4. the user and admin web interfaces mishandle '\\0' bytes, ultimately allowing injection of arbitrary Lua code into user session files. This can be used to execute arbitrary system commands with the privileges of the FTP service (root or SYSTEM by default). This is thus a remote code execution vulnerability that guarantees a total server compromise. This is also exploitable via anonymous FTP accounts."
    },
    {
      "lang": "es",
      "value": "En Wing FTP Server anterior a la versión 7.4.4, las interfaces web de usuario y administrador gestionan incorrectamente los bytes '\\0', lo que permite la inyección de código Lua arbitrario en los archivos de sesión del usuario. Esto puede usarse para ejecutar comandos de sistema arbitrarios con los privilegios del servicio FTP (root o SYSTEM por defecto). Por lo tanto, se trata de una vulnerabilidad de ejecución remota de código que garantiza la vulneración total del servidor. Esto también es explotable mediante cuentas FTP anónimas."
    }
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  "lastModified": "2026-06-17T09:28:43.200",
  "cisaActionDue": "2025-08-04",
  "cisaExploitAdd": "2025-07-14",
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  "cisaVulnerabilityName": "Wing FTP Server Improper Neutralization of Null Byte or NUL Character Vulnerability"
}