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CVE-2021-26077GHSA-2X7V-W2MV-F3RX

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 C

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.1.3, 2.1.5
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Atlassian Atlassian Connect Spring Boot (ACSB)

    From 1.1.0; fixed in 2.1.3; From 2.1.4; fixed in 2.1.5

  • com.atlassian.connect:atlassian-connect-spring-bootMaven

    From 1.1.0 · fixed in 2.1.3

  • com.atlassian.connect:atlassian-connect-spring-bootMaven

    From 2.1.4 · fixed in 2.1.5

References 2

community.developer.atlassian.com

confluence.atlassian.com