In Garden versions 0.22.0-0.329.0, a vulnerability has been discovered in the garden-linux nstar executable that allows access to files on the host system. By staging an application on Cloud Foundry using Diego and Garden installations with a malicious custom buildpack an end user could read files on the host system that the BOSH-created vcap user has permissions to read and then package them into their app droplet.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Garden | Cloudfoundry | * | 0.330.0 (excluding) |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: