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CVE-2019-20215

Estado: ModificadaCrítica (9.8)—

D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via a urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because HTTP_ST is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.

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)

Dlink — Dir-859 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-20215",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
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          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  "published": "2020-01-29T03:15:14.127",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html",
      "source": "cve@mitre.org"
    },
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      "url": "https://medium.com/%40s1kr10s/d-link-dir-859-unauthenticated-rce-in-ssdpcgi-http-st-cve-2019-20215-en-2e799acb8a73",
      "source": "cve@mitre.org"
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      "source": "cve@mitre.org"
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    {
      "url": "http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147",
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        "Vendor 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-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via a urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because HTTP_ST is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters."
    },
    {
      "lang": "es",
      "value": "Los dispositivos D-Link DIR-859 versiones 1.05 y 1.06B01 Beta01, permiten a atacantes remotos ejecutar comandos arbitrarios del Sistema Operativo por medio de una urn: en el método M-SEARCH en la función ssdpcgi() en el archivo /htdocs/cgibin, porque HTTP_ST se maneja inapropiadamente. El valor de la urn: service/device es verificado con la función strstr, lo que permite a un atacante concatenar comandos arbitrarios separados por metacaracteres de shell."
    }
  ],
  "lastModified": "2026-06-17T02:30:12.943",
  "configurations": [
    {
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  "sourceIdentifier": "cve@mitre.org"
}