Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.3, the /api/backup endpoint is accessible without authentication and discloses the encryption keys required to decrypt the backup in the X-Backup-Security response header. This allows an unauthenticated attacker to download a full system backup containing sensitive data (user credentials, session tokens, SSL private keys, Nginx configurations) and decrypt it immediately. This issue has been patched in version 2.3.3.
| Vendor | Product | Versions |
|---|---|---|
| nginxui | nginx_ui | < 2.3.3, < 2.3.4 |
Updated description with new technical details, changed affected versions to < 2.3.4, and updated patch version to 2.3.4.
Initial creation
