CVE-2021-26074

6.5MEDIUM

Key Information:

Vendor
Atlassian
Status
Atlassian Connect Spring Boot (acsb)
Vendor
CVE Published:
16 April 2021

Summary

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.

Affected Version(s)

Atlassian Connect Spring Boot (ACSB) 1.1.0

Atlassian Connect Spring Boot (ACSB) < 2.1.3

References

https://confluence.atlassian.com/pages/viewpage.action?pa...
x_refsource_MISC
https://community.developer.atlassian.com/t/action-requir...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.