gsd-2021-34433
Vulnerability from gsd
Modified
2023-12-13 01:23
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's signature on the client side, if that signature is not included in the server's ServerKeyExchange.
Aliases
Aliases
CVE-2021-34433


To clipboard 

{
   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's signature on the client side, if that signature is not included in the server's ServerKeyExchange.",
      id: "GSD-2021-34433",
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-34433",
         ],
         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's signature on the client side, if that signature is not included in the server's ServerKeyExchange.",
         id: "GSD-2021-34433",
         modified: "2023-12-13T01:23:14.567416Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "security@eclipse.org",
            ID: "CVE-2021-34433",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "Eclipse Californium",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: ">=",
                                       version_value: "2.0.0",
                                    },
                                    {
                                       version_affected: "<=",
                                       version_value: "2.6.4",
                                    },
                                    {
                                       version_affected: ">=",
                                       version_value: "3.0.0-M1",
                                    },
                                    {
                                       version_affected: "<=",
                                       version_value: "3.0.0-M3",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "The Eclipse Foundation",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  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.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-322: Key Exchange without Entity Authentication",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
                  refsource: "CONFIRM",
                  url: "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
               },
            ],
         },
      },
      "gitlab.com": {
         advisories: [
            {
               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",
               cvss_v2: "AV:N/AC:L/Au:N/C:N/I:P/A:N",
               cvss_v3: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
               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's signature on the client side, if that signature is not included in the server's `ServerKeyExchange`.",
               fixed_versions: [
                  "2.6.5",
               ],
               identifier: "CVE-2021-34433",
               identifiers: [
                  "CVE-2021-34433",
               ],
               not_impacted: "All versions before 2.0.0, all versions starting from 2.6.5 before 3.0.0, all versions after 3.0.0",
               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",
               urls: [
                  "https://nvd.nist.gov/vuln/detail/CVE-2021-34433",
                  "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
               ],
               uuid: "30130b29-0ebe-49eb-89fd-bf7f8ced0503",
            },
         ],
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "2.6.5",
                        versionStartIncluding: "2.0.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:eclipse:californium:3.0.0:m1:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:eclipse:californium:3.0.0:m2:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:eclipse:californium:3.0.0:m3:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "security@eclipse.org",
               ID: "CVE-2021-34433",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     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.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-347",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
                     refsource: "CONFIRM",
                     tags: [
                        "Issue Tracking",
                        "Vendor Advisory",
                     ],
                     url: "https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "NONE",
                  baseScore: 5,
                  confidentialityImpact: "NONE",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:L/Au:N/C:N/I:P/A:N",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "NONE",
                  baseScore: 7.5,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "NONE",
                  integrityImpact: "HIGH",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2021-08-26T14:02Z",
         publishedDate: "2021-08-20T17:15Z",
      },
   },
}


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