CVE-2021-26074

{"id": "CVE-2021-26074", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-04-16T03:15:12.113", "references": [{"url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072", "tags": ["Vendor Advisory"], "source": "security@atlassian.com"}, {"url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986106", "tags": ["Vendor Advisory"], "source": "security@atlassian.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "Broken Authentication in Atlassian Connect Spring Boot (ACSB) from version 1.1.0 before version 2.1.3: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Spring Boot app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Spring Boot versions from version 1.1.0 before version 2.1.3 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 Spring Boot (ACSB) desde la versi\u00f3n 1.1.0 versiones anteriores a 2.1.3: Atlassian Connect Spring Boot es un paquete Java Spring Boot para crear aplicaciones de Atlassian Connect. La autenticaci\u00f3n entre los productos de Atlassian y la aplicaci\u00f3n Atlassian Connect Spring Boot se produce con un JWT de servidor a servidor o un JWT de contexto. Las versiones de Atlassian Connect Spring Boot desde la versi\u00f3n 1.1.0 versiones anteriores a 2.1.3 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"}], "lastModified": "2022-03-01T16:25:40.350", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:atlassian:connect_spring_boot:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2AA2CBC2-F9F4-4F3C-8446-D995F1D8AE2E", "versionEndExcluding": "2.1.3", "versionStartIncluding": "1.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@atlassian.com"}