Vulnerabilities > CVE-2023-23629 - Improper Privilege Management vulnerability in Metabase
Summary
Metabase is an open source data analytics platform. Affected versions are subject to Improper Privilege Management. As intended, recipients of dashboards subscriptions can view the data as seen by the creator of that subscription. This allows someone with greater access to data to create a dashboard subscription, add people with fewer data privileges, and all recipients of that subscription receive the same data: the charts shown in the email would abide by the privileges of the user who created the subscription. The issue is users with fewer privileges who can view a dashboard are able to add themselves to a dashboard subscription created by someone with additional data privileges, and thus get access to more data via email. This issue is patched in versions 0.43.7.1, 1.43.7.1, 0.44.6.1, 1.44.6.1, 0.45.2.1, and 1.45.2.1. On Metabase instances running Enterprise Edition, admins can disable the "Subscriptions and Alerts" permission for groups that have restricted data permissions, as a workaround.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Restful Privilege Elevation Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.