GHSA-9qq2-xhmc-h9qr
Access Control Bypass
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/rancher/rancher | >= 2.0.0, < 2.1.6 | 2.1.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
An issue was discovered in Rancher 2 through 2.1.5. Any project member with access to the default namespace can mount the netes-default service account in a pod, and then use that pod to execute administrative privileged commands against the k8s cluster. This could be mitigated by isolating the default namespace in a separate project, where only cluster admins can be given permissions to access. As of 2018-12-20, this bug affected ALL clusters created or imported by Rancher.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2018-20321
- https://github.com/rancher/rancher/commit/6ea187fcc2309d5a7a14ed47de5688bf6573f448
- https://forums.rancher.com/c/announcements
- https://github.com/rancher/rancher
- https://github.com/rancher/rancher/releases/tag/v2.1.6
- https://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11