« Volver al listado

CVE-2021-34433

Estado: ModificadaAlta (7.5)—

In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.

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)

Eclipse — Californium

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-34433",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "emo@eclipse.org",
      "affectedData": [
        {
          "vendor": "The Eclipse Foundation",
          "product": "Eclipse Californium",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "2.6.4"
            },
            {
              "status": "affected",
              "version": "3.0.0-M1",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "3.0.0-M3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-08-20T17:15:07.687",
  "references": [
    {
      "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "emo@eclipse.org"
    },
    {
      "url": "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "emo@eclipse.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-322"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange."
    },
    {
      "lang": "es",
      "value": "En Eclipse Californium versiones 2.0.0 a 2.6.4 y 3.0.0-M1 a 3.0.0-M3, los handshakes DTLS basados en certificados (x509 y RPK) presentan éxito accidentalmente sin verificar la firma del lado del servidor en el lado del cliente, si esa firma no está incluida en el ServerKeyExchange del servidor."
    }
  ],
  "lastModified": "2026-06-17T03:55:51.527",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "65A08A46-AE52-493B-BD3B-06B7F33A6199",
              "versionEndExcluding": "2.6.5",
              "versionStartIncluding": "2.0.0"
            },
            {
              "criteria": "cpe:2.3:a:eclipse:californium:3.0.0:m1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9664425C-0BC8-42FA-A128-4888792AABD6"
            },
            {
              "criteria": "cpe:2.3:a:eclipse:californium:3.0.0:m2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5BAEC5E6-CADE-402A-8741-C6962C051A16"
            },
            {
              "criteria": "cpe:2.3:a:eclipse:californium:3.0.0:m3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "72226029-FA1A-41D5-BF95-A60C830C394A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "emo@eclipse.org"
}