CVE-2021-26074
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
com.atlassian.connect:atlassian-connect-spring-boot-starterMaven | >= 1.1.0, < 2.1.3 | 2.1.3 |
Affected products
2- ghsa-coordsRange: >= 1.1.0, < 2.1.3
- Range: 1.1.0
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-cpcr-74q9-74gpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-26074ghsaADVISORY
- community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-allows-bypass-of-app-qsh-verification-via-context-jwts/47072ghsax_refsource_MISCWEB
- confluence.atlassian.com/pages/viewpage.actionghsax_refsource_MISCWEB
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