An issue was discovered in Grafana 5.4.0. Passwords for data sources used by Grafana (e.g., MySQL) are not encrypted. An admin user can reveal passwords for any data source by pressing the Save and test button within a data sources settings menu. When watching the transaction with Burp Proxy, the password for the data source is revealed and sent to the server. From a browser, a prompt to save the credentials is generated, and the password can be revealed by simply checking the Show password box.
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Grafana | Grafana | 5.4.0 (including) | 5.4.0 (including) |
| Grafana | Ubuntu | esm-apps/xenial | * |
| Grafana | Ubuntu | trusty | * |
| Grafana | Ubuntu | xenial | * |