{"containers": {"cna": {"affected": [{"product": "Atlassian Connect Express (ACE)", "vendor": "Atlassian", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "3.0.2", "versionType": "custom"}, {"lessThan": "6.6.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2021-04-13T00:00:00", "descriptions": [{"lang": "en", "value": "Broken Authentication in Atlassian Connect Express (ACE) from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Express versions from 3.0.2 before 6.6.0 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app."}], "problemTypes": [{"descriptions": [{"description": "Broken Authentication", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-02-23T03:45:13", "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "shortName": "atlassian"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099"}, {"tags": ["x_refsource_MISC"], "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a%5B%E2%80%A6%5Dypass-of-app-qsh-verification-via-context-jwts/47072"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://security.netapp.com/advisory/ntap-20210604-0004/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@atlassian.com", "DATE_PUBLIC": "2021-04-13T00:00:00", "ID": "CVE-2021-26073", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Atlassian Connect Express (ACE)", "version": {"version_data": [{"version_affected": ">=", "version_value": "3.0.2"}, {"version_affected": "<", "version_value": "6.6.0"}]}}]}, "vendor_name": "Atlassian"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Broken Authentication in Atlassian Connect Express (ACE) from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Express versions from 3.0.2 before 6.6.0 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Broken Authentication"}]}]}, "references": {"reference_data": [{"name": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099", "refsource": "MISC", "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099"}, {"name": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a[\u2026]ypass-of-app-qsh-verification-via-context-jwts/47072", "refsource": "MISC", "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a[\u2026]ypass-of-app-qsh-verification-via-context-jwts/47072"}, {"name": "https://security.netapp.com/advisory/ntap-20210604-0004/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210604-0004/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:19:19.387Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a%5B%E2%80%A6%5Dypass-of-app-qsh-verification-via-context-jwts/47072"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://security.netapp.com/advisory/ntap-20210604-0004/"}]}]}, "cveMetadata": {"assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "assignerShortName": "atlassian", "cveId": "CVE-2021-26073", "datePublished": "2021-04-16T03:00:19.147283Z", "dateReserved": "2021-01-25T00:00:00", "dateUpdated": "2024-09-17T01:15:39.396Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:atlassian:connect_express:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "AB2C8D0B-0934-4D8E-86D9-BCEB48094866", "versionEndExcluding": "6.6.0", "versionStartIncluding": "3.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Broken Authentication in Atlassian Connect Express (ACE) from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Express versions from 3.0.2 before 6.6.0 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app."}, {"lang": "es", "value": "Autenticaci\u00f3n rota en Atlassian Connect Express (ACE) desde la versi\u00f3n 3.0.2 versiones anteriores a 6.6.0: Atlassian Connect Express es un paquete Node.js para construir aplicaciones de Atlassian Connect. La autenticaci\u00f3n entre los productos de Atlassian y la aplicaci\u00f3n Atlassian Connect Express se produce con un JWT de servidor a servidor o un JWT de contexto. Las versiones de Atlassian Connect Express desde la 3.0.2 versiones anteriores a 6.6.0 aceptan err\u00f3neamente JWTs de contexto en los puntos finales del ciclo de vida (como la instalaci\u00f3n) cuando solo deber\u00edan aceptarse JWTs de servidor a servidor, lo que permite a un atacante enviar eventos de reinstalaci\u00f3n autenticados a una aplicaci\u00f3n"}], "id": "CVE-2021-26073", "lastModified": "2024-11-21T05:55:49.020", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-16T03:15:12.033", "references": [{"source": "security@atlassian.com", "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a%5B%E2%80%A6%5Dypass-of-app-qsh-verification-via-context-jwts/47072"}, {"source": "security@atlassian.com", "tags": ["Vendor Advisory"], "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099"}, {"source": "security@atlassian.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210604-0004/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a%5B%E2%80%A6%5Dypass-of-app-qsh-verification-via-context-jwts/47072"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210604-0004/"}], "sourceIdentifier": "security@atlassian.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}