high7.7
CVE-2021-26073
Broken Authentication in Atlassian Connect Express
Impact
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 between 3.0.2 - 6.5.0 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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | atlassian-connect-express | >= 3.0.2, < 6.6.0 | 6.6.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Atlassian | Connect Express | from 3.0.2 before 6.6.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://community.developer.atlassian.com/t/action-required-atlassian-connect-vulnerability-a%5B%E2%80%A6%5Dypass-of-app-qsh-verification-via-context-jwts/47072
- https://confluence.atlassian.com/pages/viewpage.action?pageId=1051986099
- https://security.netapp.com/advisory/ntap-20210604-0004/
- https://github.com/advisories/GHSA-4v96-m8xv-x83v
- https://nvd.nist.gov/vuln/detail/CVE-2021-26073
- https://security.netapp.com/advisory/ntap-20210604-0004