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CVE-2019-25470

Estado: AplazadaAlta (8.7)—

eWON Firmware versions 12.2 to 13.0 contain an authentication bypass vulnerability that allows attackers with minimal privileges to retrieve sensitive user data by exploiting the wsdReadForm endpoint. Attackers can send POST requests to /wrcgi.bin/wsdReadForm with base64-encoded partial credentials and a crafted wsdList parameter to extract encrypted passwords for all users, which can be decrypted using a hardcoded XOR key.

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad de autenticación en endpoint web expuesto sin autenticación (AV:N, PR:N). El atacante extrae credenciales encriptadas y contraseñas mediante XOR hardcodeado, permitiendo acceso con credenciales válidas.

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 ManagementNetwork SegmentationLimit Access to Resource Over NetworkVulnerability ScanningUser Account ManagementPassword Policies

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Ewon — EwonAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-25470",
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          "id": "CVE-2019-25470",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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            {
              "automatable": "yes"
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            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "NOT_DEFINED",
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          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "affectedData": [
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          "product": "eWON",
          "versions": [
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  "published": "2026-03-11T19:16:00.613",
  "references": [
    {
      "url": "https://www.ewon.biz",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.exploit-db.com/exploits/47380",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.vulncheck.com/advisories/ewon-firmware-authentication-bypass-via-wsdreadform",
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
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          "value": "CWE-798"
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      "lang": "en",
      "value": "eWON Firmware versions 12.2 to 13.0 contain an authentication bypass vulnerability that allows attackers with minimal privileges to retrieve sensitive user data by exploiting the wsdReadForm endpoint. Attackers can send POST requests to /wrcgi.bin/wsdReadForm with base64-encoded partial credentials and a crafted wsdList parameter to extract encrypted passwords for all users, which can be decrypted using a hardcoded XOR key."
    },
    {
      "lang": "es",
      "value": "Las versiones de firmware de eWON 12.2 a 13.0 contienen una vulnerabilidad de omisión de autenticación que permite a atacantes con privilegios mínimos recuperar datos de usuario sensibles explotando el endpoint wsdReadForm. Los atacantes pueden enviar solicitudes POST a /wrcgi.bin/wsdReadForm con credenciales parciales codificadas en base64 y un parámetro wsdList manipulado para extraer contraseñas cifradas de todos los usuarios, las cuales pueden ser descifradas utilizando una clave XOR codificada de forma fija."
    }
  ],
  "lastModified": "2026-06-17T02:32:27.203",
  "sourceIdentifier": "disclosure@vulncheck.com"
}