GHSA-gqf8-rvrh-g7w6
Rancher cloud credentials can be used through proxy API by users without access
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/rancher/rancher | >= 2.2.0, < 2.4.16 | 2.4.16 |
| Go | github.com/rancher/rancher | >= 2.5.0, < 2.5.9 | 2.5.9 |
Details
As written in the advisory (Markdown source, shown as plain text).
A vulnerability was discovered in Rancher 2.2.0 through the aforementioned patched versions, where cloud credentials weren't being properly validated through the Rancher API. Specifically through a proxy designed to communicate with cloud providers. Any Rancher user that was logged-in and aware of a cloud-credential ID that was valid for a given cloud provider, could call that cloud provider's API through the proxy API, and the cloud-credential would be attached. The exploit is limited to valid Rancher users. There is not a direct mitigation outside of upgrading to the patched Rancher versions.
References
External links from the advisory. They lead to third-party sites.