CVE Vulnerability

CVE-2021-26073

Broken Authentication in Atlassian Connect Express (ACE) from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Express versions from 3.0.2 before 6.6.0 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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.7 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.1 / Impact : 4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099 Vendor Advisory
https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a[…]ypass-of-app-qsh-verification-via-context-jwts/47072 Issue Tracking Vendor Advisory
https://security.netapp.com/advisory/ntap-20210604-0004/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:atlassian:connect_express:*:*:*:*:*:node.js:*:*
Information

Published : 2021-04-16 03:15

Updated : 2022-03-01 04:23

NVD link : CVE-2021-26073

Mitre link : CVE-2021-26073

Products Affected
No products.
CWE
CWE-287