CVE-2021-22160

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://lists.apache.org/thread.html/r347650d15a3e9c5f58b83e918b6ad6dedc2a63d3eb63da8e6a7be87e%40%3Cusers.pulsar.apache.org%3E", "name": "https://lists.apache.org/thread.html/r347650d15a3e9c5f58b83e918b6ad6dedc2a63d3eb63da8e6a7be87e%40%3Cusers.pulsar.apache.org%3E", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://lists.apache.org/thread.html/rf2e90942996dceebac8296abf39257cfeb5ae918f82f7af3d37a48c5@%3Cdev.pulsar.apache.org%3E", "name": "[pulsar-dev] 20210527 Cutting 2.6.4 release to address CVE-2021-22160", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/ra49cb62105154e4795b259c79a6b27d63bfa2ab5787ff8529b089550@%3Cusers.pulsar.apache.org%3E", "name": "[pulsar-users] 20210527 Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of \"none\"-algorithm", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/r8e545559781231a83bf0644548c660255859e52feb86bbfcd42590da@%3Cdev.pulsar.apache.org%3E", "name": "[pulsar-dev] 20210527 Re: Cutting 2.6.4 release to address CVE-2021-22160", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/ra49cb62105154e4795b259c79a6b27d63bfa2ab5787ff8529b089550@%3Cdev.pulsar.apache.org%3E", "name": "[pulsar-dev] 20210527 Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of \"none\"-algorithm", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/rbe845aa1573a61769b9c5916c62971f4b10de87c2ea5f38a97f0cf84@%3Cdev.pulsar.apache.org%3E", "name": "[pulsar-dev] 20210531 Re: [DISCUSS] Propose More Formal Policy for Security Patches and EOL of Versions", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/r9a12b4da2f26ce9b8f7e7117a879efaa973dab7e54717bbc7923fab1%40%3Cdev.pulsar.apache.org%3E", "name": "Re: [SECURITY] [CVE-2021-22160] Authentication with JWT allows use of \u201cnone\u201d-algorithm", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.apache.org/thread.html/rca54f4b26ba5e6f2e39732b47ec51640e89f57e3b6a38ac3bab314df@%3Cdev.pulsar.apache.org%3E", "name": "[pulsar-dev] 20210604 Re: [DISCUSS] Propose More Formal Policy for Security Patches and EOL of Versions", "tags": ["Mailing List", "Vendor Advisory"], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "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)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-347"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-22160", "ASSIGNER": "security@apache.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2021-05-26T13:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.7.1"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-06-04T02:49Z"}