GSD-2021-22160

Vulnerability from gsd - Updated: 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
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{
  "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"
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      "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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      },
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                          "version_affected": "\u003c",
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            "name": "https://lists.apache.org/thread.html/r347650d15a3e9c5f58b83e918b6ad6dedc2a63d3eb63da8e6a7be87e%40%3Cusers.pulsar.apache.org%3E",
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            "name": "[pulsar-dev] 20210527 Cutting 2.6.4 release to address CVE-2021-22160",
            "refsource": "MLIST",
            "url": "https://lists.apache.org/thread.html/rf2e90942996dceebac8296abf39257cfeb5ae918f82f7af3d37a48c5@%3Cdev.pulsar.apache.org%3E"
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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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            "name": "[pulsar-dev] 20210527 Re: Cutting 2.6.4 release to address CVE-2021-22160",
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          {
            "name": "[pulsar-dev] 20210531 Re: [DISCUSS] Propose More Formal Policy for Security Patches and EOL of Versions",
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            "url": "https://lists.apache.org/thread.html/rbe845aa1573a61769b9c5916c62971f4b10de87c2ea5f38a97f0cf84@%3Cdev.pulsar.apache.org%3E"
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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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          }
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      },
      "source": {
        "discovery": "UNKNOWN"
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        {
          "affected_range": "(,2.7.1)",
          "affected_versions": "All versions before 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).",
          "fixed_versions": [
            "2.7.1"
          ],
          "identifier": "CVE-2021-22160",
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          ],
          "not_impacted": "All versions starting from 2.7.1",
          "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": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22160"
          ],
          "uuid": "9e22a94a-5a81-4d7e-b4ad-914ddb039abb"
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            "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",
          "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",
            "https://lists.apache.org/thread.html/rf2e90942996dceebac8296abf39257cfeb5ae918f82f7af3d37a48c5@%3Cdev.pulsar.apache.org%3E",
            "https://lists.apache.org/thread.html/ra49cb62105154e4795b259c79a6b27d63bfa2ab5787ff8529b089550@%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",
            "https://github.com/apache/pulsar/releases/tag/v2.7.2",
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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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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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