Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Atlassian | Connect Spring Boot | >= 1.1.0, < 2.1.3 |
Related Weaknesses (CWE)
References
- https://community.developer.atlassian.com/t/action-required-atlassian-connect-vuExploitIssue TrackingVendor Advisory
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1063555147Vendor Advisory
- https://community.developer.atlassian.com/t/action-required-atlassian-connect-vuExploitIssue TrackingVendor Advisory
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1063555147Vendor Advisory
FAQ
What is CVE-2021-26077?
CVE-2021-26077 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 buildin...
How severe is CVE-2021-26077?
CVE-2021-26077 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-26077?
Check the references section above for vendor advisories and patch information. Affected products include: Atlassian Connect Spring Boot.