Description
Prior to 3385, the user-controlled role parameter enters the application in the Kubernetes::RoleVerificationsController. The role parameter flows into the RoleConfigFile initializer and then into the Kubernetes::Util.parse_file method where it is unsafely deserialized using the YAML.load_stream method. This issue may lead to Remote Code Execution (RCE). This vulnerability is fixed in 3385.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Zendesk Samson
< 3385affected
References
- https://securitylab.github.com/advisories/GHSL-2023-136_Samson/ ↗
- https://github.com/zendesk/samson/pull/4071 ↗
- https://github.com/zendesk/samson/blob/107efb4a252425966aac5e77d0c3670f9b5d7229/plugins/kubernetes/app/controllers/kubernetes/role_verifications_controller.rb#L10 ↗
- https://github.com/zendesk/samson/blob/107efb4a252425966aac5e77d0c3670f9b5d7229/plugins/kubernetes/app/controllers/kubernetes/role_verifications_controller.rb#L7 ↗
- https://github.com/zendesk/samson/blob/107efb4a252425966aac5e77d0c3670f9b5d7229/plugins/kubernetes/app/models/kubernetes/role_config_file.rb#L80 ↗
- https://github.com/zendesk/samson/blob/107efb4a252425966aac5e77d0c3670f9b5d7229/plugins/kubernetes/app/models/kubernetes/util.rb#L9 ↗