Grafana Improper Access Control Information Disclosure Vulnerability

The German Federal Office for Information Security (BSI) has reported a vulnerability in Grafana that allows a remote, authenticated attacker to disclose sensitive information. The flaw, tracked as CVE-2024-9264, stems from improper access control mechanisms within the application. This vulnerability enables an attacker who already possesses valid authentication credentials to access data or system information that they are not authorized to view. Because this requires an authenticated session, the primary threat involves users or compromised accounts escalating their access to read data outside their intended scope. Defenders should review access logs and internal permissions for Grafana installations to identify potential exploitation patterns or unusual data access requests by existing users.

Impact

Successful exploitation allows unauthorized disclosure of sensitive data within the Grafana environment. This can lead to the exposure of dashboard configurations, data source connection details, or internal system metrics, depending on the scope of the affected user's session and the target resources.

Recommendation

• Review security patches provided by Grafana Labs for all internal and cloud-hosted Grafana instances.
• Audit current user roles and permissions in the Grafana administrative console to minimize the potential impact of an account being used for unauthorized data access.
• Monitor Grafana access logs for anomalous patterns, specifically looking for high-frequency requests or attempts to access directories and API endpoints outside of the user's assigned dashboard scope.