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CVE-2021-29379

Estado: ModificadaAlta (8.8)—

** NO COMPATIBLE CUANDO SE ASIGNÓ ** Se detectó un problema en los dispositivos D-Link DIR-802 A1 versiones hasta 1.00b05. Universal Plug and Play (UPnP) está habilitado por defecto en el puerto 1900. Un atacante puede llevar a cabo una inyección de comandos al inyectar una carga útil en el campo Search Target (ST) del paquete de descubrimiento SSDP M-SEARCH. NOTA: Esta vulnerabilidad solo afecta a los productos que ya no son compatibles por el mantenedor

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-802 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-29379",
  "cveTags": [
    {
      "tags": [
        "unsupported-when-assigned"
      ],
      "sourceIdentifier": "cve@mitre.org"
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/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"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-12T05:15:12.503",
  "references": [
    {
      "url": "https://cool-y.github.io/2021/03/02/DIR-802-OS-Command-Injection",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10206",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.dlink.com/en/security-bulletin/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://cool-y.github.io/2021/03/02/DIR-802-OS-Command-Injection",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10206",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.dlink.com/en/security-bulletin/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on D-Link DIR-802 A1 devices through 1.00b05. Universal Plug and Play (UPnP) is enabled by default on port 1900. An attacker can perform command injection by injecting a payload into the Search Target (ST) field of the SSDP M-SEARCH discover packet. NOTE: This vulnerability only affects products that are no longer supported by the maintainer"
    },
    {
      "lang": "es",
      "value": "** NO COMPATIBLE CUANDO SE ASIGNÓ ** Se detectó un problema en los dispositivos D-Link DIR-802 A1 versiones hasta 1.00b05. Universal Plug and Play (UPnP) está habilitado por defecto en el puerto 1900. Un atacante puede llevar a cabo una inyección de comandos al inyectar una carga útil en el campo Search Target (ST) del paquete de descubrimiento SSDP M-SEARCH. NOTA: Esta vulnerabilidad solo afecta a los productos que ya no son compatibles por el mantenedor"
    }
  ],
  "lastModified": "2026-06-17T03:47:34.340",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:dlink:dir-802_firmware:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "462AF67F-63BA-49A9-99AD-81BA65F9B7CD",
              "versionEndIncluding": "1.00b05"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:dlink:dir-802:a1:*:*:*:*:*:*:*",
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              "matchCriteriaId": "1838D76E-EA30-4D22-9F05-1C97E7F9512A"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}