fkie_cve-2021-20220
Vulnerability from fkie_nvd
Published
2021-02-23 18:15
Modified
2024-11-21 05:46
Summary
A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.



{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo en Undertow.\u0026#xa0;Se encontr\u00f3 una regresi\u00f3n en la correcci\u00f3n para CVE-2020-10687.\u0026#xa0;El trafico no autorizado de peticiones HTTP relacionado con CVE-2017-2666 es posible contra HTTP/1.x y HTTP/2 debido a que se permiten caracteres no v\u00e1lidos en una petici\u00f3n HTTP.\u0026#xa0;Este fallo permite a un atacante envenenar un cach\u00e9 web, llevar a cabo un ataque XSS y obtener informaci\u00f3n confidencial de una petici\u00f3n distinta a la suya.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos"
    }
  ],
  "id": "CVE-2021-20220",
  "lastModified": "2024-11-21T05:46:09.377",
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        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "version": "2.0"
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        "exploitabilityScore": 8.6,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
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          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
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  "published": "2021-02-23T18:15:13.397",
  "references": [
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      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1923133"
    },
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      "source": "secalert@redhat.com",
      "tags": [
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-444"
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      "source": "secalert@redhat.com",
      "type": "Secondary"
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    {
      "description": [
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          "lang": "en",
          "value": "CWE-444"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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