Description
The Alertmanager in Grafana Enterprise Metrics before 1.2.1 and Metrics Enterprise 1.2.1 has a local file disclosure vulnerability when experimental.alertmanager.enable-api is used. The HTTP basic auth password_file can be used as an attack vector to send any file content via a webhook. The alertmanager templates can be used as an attack vector to send any file content because the alertmanager can load any text file specified in the templates list.
References
- https://grafana.com/docs/metrics-enterprise/
- https://community.grafana.com/c/security-announcements
- https://grafana.com/docs/metrics-enterprise/latest/downloads/#v113----april-27-2021
- https://grafana.com/docs/metrics-enterprise/latest/downloads/#v121----april-27-2021
- https://security.netapp.com/advisory/ntap-20210611-0001/