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CVE-2018-10252

Estado: ModificadaAlta (8.1)—

An issue was discovered on Actiontec WCB6200Q before 1.1.10.20a devices. The admin login session cookie is insecurely generated making admin session hijacking possible. When an admin logs in, a session cookie is generated using the time of day rounded to 10ms. Since the web server returns its current time of day in responses, it is possible to step backward through possible session values until a working one is found. Once a working session ID is found, an attacker then has admin control of the device and can add a secondary SSID to create a backdoor to the network.

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)

Actiontec — Wcb6200q Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-10252",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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        "userInteractionRequired": false
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        "cvssData": {
          "scope": "UNCHANGED",
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          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 2.2
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  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
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  "published": "2018-05-14T14:29:00.240",
  "references": [
    {
      "url": "https://actiontecsupport.zendesk.com/hc/en-us/articles/115000432163-WCB6200Q-Firmware-Upgrade",
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        "Issue Tracking",
        "Vendor Advisory"
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      "url": "https://actiontecsupport.zendesk.com/hc/en-us/articles/115000432163-WCB6200Q-Firmware-Upgrade",
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  "vulnStatus": "Modified",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-384"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on Actiontec WCB6200Q before 1.1.10.20a devices. The admin login session cookie is insecurely generated making admin session hijacking possible. When an admin logs in, a session cookie is generated using the time of day rounded to 10ms. Since the web server returns its current time of day in responses, it is possible to step backward through possible session values until a working one is found. Once a working session ID is found, an attacker then has admin control of the device and can add a secondary SSID to create a backdoor to the network."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en dispositivos Actiontec WCB6200Q anteriores a 1.1.10.20a. La cookie de sesión de inicio de sesión de administrador se genera de manera no segura haciendo que sea posible secuestrar la sesión de administrador. Cuando un administrador inicia sesión, se genera una cookie de sesión que marca la hora del día con una sensibilidad de 10 milisegundos. Dado que el servidor web devuelve su hora actual en las respuestas, es posible probar posibles valores de sesión hasta que se encuentre uno que funcione. Cuando se encuentre un ID de sesión válido, un atacante podría entonces obtener control de administración del dispositivo y añadir un SSID secundario para crear una puerta trasera de la red."
    }
  ],
  "lastModified": "2026-06-17T01:33:46.157",
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              "versionEndExcluding": "1.1.10.20a"
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