CVE-2024-22031: Rancher users who can create Projects can gain access to arbitrary projects

A vulnerability has been identified within Rancher where a user with the ability to create a project, on a certain cluster, can create a project with the same name as an existing project in a different cluster. This results in the user gaining access to the other project in the different cluster, resulting in a privilege escalation. This happens because the namespace used on the local cluster to store related resources (PRTBs and secrets) is the name of the project.

Please consult the associated MITRE ATT&CK - Technique - Privilege Escalation for further information about this category of attack.