CVEvulnerability
CVE-2018-20321
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-04-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 8.8 HIGH — CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C
- Weaknesses
- CWE-668
Description
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.
Affected configurations
• suse rancher (>= 2.0.0 <= 2.1.5)
Related
Weakness · CWE (1)
- CWE-668 Exposure of Resource to Wrong Sphere weakness
References
- https://forums.rancher.com/c/announcements Vendor Advisory
- https://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11/ Mitigation, Vendor Advisory
- https://forums.rancher.com/c/announcements Vendor Advisory
- https://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11/ Mitigation, Vendor Advisory