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CVE-2020-35756

Estado: ModificadaAlta (7.5)—

An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices. There is a luci_service GETPASS Configuration Password Information Leak. The luci_service daemon running on port 7777 does not require authentication to return the device configuration password in cleartext when using the GETPASS command. As such, any unauthenticated person with access to port 7777 on the device will be able to leak the user's personal device configuration password by issuing the GETPASS command.

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).

Tecnologías afectadas (1)

Librewireless — LS9 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-35756",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  "published": "2021-05-03T21:15:07.243",
  "references": [
    {
      "url": "https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.iot-inspector.com/blog/advisory-multiple-issues-libre-wireless-ls9/",
      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on Libre Wireless LS9 LS1.5/p7040 devices. There is a luci_service GETPASS Configuration Password Information Leak. The luci_service daemon running on port 7777 does not require authentication to return the device configuration password in cleartext when using the GETPASS command. As such, any unauthenticated person with access to port 7777 on the device will be able to leak the user's personal device configuration password by issuing the GETPASS command."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en los dispositivos Libre Wireless LS9 versión LS1.5/p7040. Se presenta un filtrado de información de contraseña de configuración de luci_service GETPASS. El demonio luci_service que se ejecuta en el puerto 7777 no requiere autenticación para devolver la contraseña de configuración del dispositivo en texto sin cifrar cuando se usa el comando GETPASS. Como tal, cualquier persona no autenticada con acceso al puerto 7777 en el dispositivo podrá filtrar la contraseña de configuración del dispositivo personal del usuario al emitir el comando GETPASS."
    }
  ],
  "lastModified": "2026-06-17T03:14:14.810",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "cve@mitre.org"
}