FKIE_CVE-2021-20150

Vulnerability from fkie_nvd - Published: 2021-12-30 22:15 - Updated: 2026-06-17 03:33
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
Trendnet AC2600 TEW-827DRU version 2.08B01 improperly discloses information via redirection from the setup wizard. Authentication can be bypassed and a user may view information as Admin by manually browsing to the setup wizard and forcing it to redirect to the desired page.
References
vulnreport@tenable.comhttps://www.tenable.com/security/research/tra-2021-54Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/research/tra-2021-54Mitigation, Third Party Advisory
Impacted products
Vendor Product Version
trendnet tew-827dru_firmware 2.08b01
trendnet tew-827dru 2.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Trendnet AC2600 TEW-827DRU",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "2.08B01"
            }
          ]
        }
      ],
      "source": "vulnreport@tenable.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:*:*:*:*:*:*:*",
              "matchCriteriaId": "9C008C1E-18D3-4A0C-97A1-89009310C55B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:trendnet:tew-827dru:2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "FA6A79A7-46A7-446F-B512-4C75B5C214CE",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Trendnet AC2600 TEW-827DRU version 2.08B01 improperly discloses information via redirection from the setup wizard. Authentication can be bypassed and a user may view information as Admin by manually browsing to the setup wizard and forcing it to redirect to the desired page."
    },
    {
      "lang": "es",
      "value": "Trendnet AC2600 TEW-827DRU versi\u00f3n 2.08B01, revela inapropiadamente informaci\u00f3n por medio de la redirecci\u00f3n del asistente de configuraci\u00f3n. La autenticaci\u00f3n puede ser omitida y un usuario puede visualizar la informaci\u00f3n como administrador al navegar manualmente al asistente de configuraci\u00f3n y forzarlo a redirigir a la p\u00e1gina deseada."
    }
  ],
  "id": "CVE-2021-20150",
  "lastModified": "2026-06-17T03:33:21.460",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-12-30T22:15:08.623",
  "references": [
    {
      "source": "vulnreport@tenable.com",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2021-54"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2021-54"
    }
  ],
  "sourceIdentifier": "vulnreport@tenable.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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