{
  "GSD": {
    "alias": "CVE-2021-34433",
    "description": "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\u0027s signature on the client side, if that signature is not included in the server\u0027s ServerKeyExchange.",
    "id": "GSD-2021-34433"
  },
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    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "details": "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\u0027s signature on the client side, if that signature is not included in the server\u0027s ServerKeyExchange.",
      "id": "GSD-2021-34433",
      "modified": "2023-12-13T01:23:14.567416Z",
      "schema_version": "1.4.0"
    }
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        {
          "affected_range": "[2.0.0,2.6.5),[3.0.0]",
          "affected_versions": "All versions starting from 2.0.0 before 2.6.5, version 3.0.0",
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          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2021-08-26",
          "description": "In Eclipse Californium the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side\u0027s signature on the client side, if that signature is not included in the server\u0027s `ServerKeyExchange`.",
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          "package_slug": "maven/org.eclipse.californium/californium-core",
          "pubdate": "2021-08-20",
          "solution": "Upgrade to version 2.6.5 or above.",
          "title": "Improper Verification of Cryptographic Signature",
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            "https://nvd.nist.gov/vuln/detail/CVE-2021-34433",
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      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
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          "obtainOtherPrivilege": false,
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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      "lastModifiedDate": "2021-08-26T14:02Z",
      "publishedDate": "2021-08-20T17:15Z"
    }
  }
}