Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, ordinary authenticated users can access /api/nodes and /api/nodes/:id, whose responses serialize the node token field. The same token is accepted as X-Node-Secret by AuthRequired and maps the request to initUser, allowing the user to impersonate a trusted node against a reachable cluster member.
This cross-node authentication bypass can expose sensitive management operations, including configuration synchronization and service restart. This issue is fixed in version 2.5.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Nginxui Nginx_Ui
cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*
|
2.0.0
|
2.5.0
|
References 3
https://github.com/0xJacky/nginx-ui/commit/0ecbd106c37b5143be14880c9447a6613515…
security-advisories@github.com
https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0
security-advisories@github.com
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-32gc-wf3m-78w9
security-advisories@github.com