Authenticated User Access to Unauthorized Alert Rules in Grafana

Executive Summary

This vulnerability allows an authenticated user to list alert rules in folders they are not permitted to access through the alert rules API. When a user has no readable folders, the restriction is removed, granting access to all alert rules in the organization. Starting from Grafana 13.1.0, any user can exploit this by applying a folder filter.

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Detection Guidance

To detect this vulnerability, check Grafana logs for unauthorized access attempts to the alert rules API list endpoint. Look for requests with folder filters that return more rules than expected. Verify user permissions and folder access restrictions in Grafana's configuration.

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Impact Analysis

An attacker could gain unauthorized access to sensitive alert rule configurations, potentially exposing internal monitoring setups or business logic. However, data source credentials are not exposed, limiting the immediate impact.

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Compliance Impact

This vulnerability allows unauthorized access to alert rule configurations, which may include sensitive metadata about monitoring setups. While it does not expose data source credentials, the exposed rule configurations could potentially reveal information about data collection practices. This may impact compliance by violating principles of data minimization and access control required by standards like GDPR and HIPAA, depending on the nature of the alert rules and the data they reference.

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Mitigation Strategies

Upgrade Grafana to a fixed version (12.3.0, 12.4.12, 13.0.10, 13.1.7, or 13.2.3). Review and restrict user permissions to ensure only authorized users can access alert rules. Monitor API access logs for suspicious activity.

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