{ "containers": { "cna": { "affected": [ { "product": "Atlassian Connect Spring Boot (ACSB)", "vendor": "Atlassian", "versions": [ { "lessThan": "unspecified", "status": "affected", "version": "1.1.0", "versionType": "custom" }, { "lessThan": "2.1.3", "status": "affected", "version": "unspecified", "versionType": "custom" }, { "lessThan": "unspecified", "status": "affected", "version": "2.1.4", "versionType": "custom" }, { "lessThan": "2.1.5", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "datePublic": "2021-05-07T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "Broken Authentication in Atlassian Connect Spring Boot (ACSB) in version 1.1.0 before 2.1.3 and from version 2.1.4 before 2.1.5: 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 1.1.0 before 2.1.3 and versions 2.1.4 before 2.1.5 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": "2021-05-09T23:55:09.000Z", "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "shortName": "atlassian" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072" }, { "tags": [ "x_refsource_MISC" ], "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1063555147" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security@atlassian.com", "DATE_PUBLIC": "2021-05-07T12:00:00", "ID": "CVE-2021-26077", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Atlassian Connect Spring Boot (ACSB)", "version": { "version_data": [ { "version_affected": ">=", "version_value": "1.1.0" }, { "version_affected": "<", "version_value": "2.1.3" }, { "version_affected": ">=", "version_value": "2.1.4" }, { "version_affected": "<", "version_value": "2.1.5" } ] } } ] }, "vendor_name": "Atlassian" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Broken Authentication in Atlassian Connect Spring Boot (ACSB) in version 1.1.0 before 2.1.3 and from version 2.1.4 before 2.1.5: 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 1.1.0 before 2.1.3 and versions 2.1.4 before 2.1.5 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://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072", "refsource": "MISC", "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072" }, { "name": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1063555147", "refsource": "MISC", "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1063555147" } ] } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:19:19.375Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1063555147" } ] }, { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-287", "lang": "en", "description": "CWE-287 Improper Authentication" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2025-02-12T20:57:46.523916Z", "id": "CVE-2021-26077", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-12T20:57:51.249Z" } } ] }, "cveMetadata": { "assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "assignerShortName": "atlassian", "cveId": "CVE-2021-26077", "datePublished": "2021-05-09T23:55:09.616Z", "dateReserved": "2021-01-25T00:00:00.000Z", "dateUpdated": "2025-02-12T20:57:51.249Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }