gsd-2021-22160
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to "none". This allows an attacker to connect to Pulsar instances as any user (incl. admins).
Aliases
Aliases
CVE-2021-22160


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-22160",
    "description": "If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to \"none\". This allows an attacker to connect to Pulsar instances as any user (incl. admins).",
    "id": "GSD-2021-22160"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-22160"
      ],
      "details": "If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to \"none\". This allows an attacker to connect to Pulsar instances as any user (incl. admins).",
      "id": "GSD-2021-22160",
      "modified": "2023-12-13T01:23:24.698968Z",
      "schema_version": "1.4.0"
    }
  },
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        "STATE": "PUBLIC",
        "TITLE": "Authentication with JWT allows use of \u201cnone\u201d-algorithm"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Apache Pulsar",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "Apache Pulsar",
                          "version_value": "2.7.1"
                        }
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          }
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                "value": "token not validated"
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            "name": "[pulsar-dev] 20210527 Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of \"none\"-algorithm",
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          {
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          },
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            "name": "[pulsar-dev] 20210604 Re: [DISCUSS] Propose More Formal Policy for Security Patches and EOL of Versions",
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          }
        ]
      },
      "source": {
        "discovery": "UNKNOWN"
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          "affected_range": "(,2.7.1)",
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          "cwe_ids": [
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            "CWE-347",
            "CWE-937"
          ],
          "date": "2022-06-04",
          "description": "If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to \"none\". This allows an attacker to connect to Pulsar instances as any user (incl. admins).",
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          "package_slug": "maven/org.apache.pulsar/pulsar-broker-common",
          "pubdate": "2021-05-26",
          "solution": "Upgrade to version 2.7.1 or above.",
          "title": "Improper Verification of Cryptographic Signature",
          "urls": [
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          "date": "2022-06-04",
          "description": "If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to \"none\". This allows an attacker to connect to Pulsar instances as any user (incl. admins).",
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          "package_slug": "maven/org.apache.pulsar/pulsar-broker",
          "pubdate": "2021-05-26",
          "solution": "Upgrade to version 2.7.1 or above.",
          "title": "Improper Verification of Cryptographic Signature",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22160",
            "https://lists.apache.org/thread.html/r347650d15a3e9c5f58b83e918b6ad6dedc2a63d3eb63da8e6a7be87e%40%3Cusers.pulsar.apache.org%3E",
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          "date": "2021-06-07",
          "description": "If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to \"none\". This allows an attacker to connect to Pulsar instances as any user (incl. admins).",
          "fixed_versions": [
            "2.7.2"
          ],
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          "package_slug": "maven/org.apache.pulsar/pulsar",
          "pubdate": "2021-06-01",
          "solution": "Upgrade to version 2.7.2 or above.",
          "title": "Improper Verification of Cryptographic Signature",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22160",
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          ],
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            },
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-06-04T02:49Z",
      "publishedDate": "2021-05-26T13:15Z"
    }
  }
}


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