CVE-2018-20321
8.8 · HIGHOverview
CVE-2018-20321 is a high-severity vulnerability affecting suse rancher. It was published on April 10, 2019 and has a CVSS 3.0 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from suse. Update rancher to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| suse | rancher | 2.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2018-20321?
CVE-2018-20321 is a high-severity vulnerability affecting suse rancher. It was published on April 10, 2019 and has a CVSS 3.0 base score of 8.8 (HIGH).
How severe is CVE-2018-20321?
This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2018-20321?
Check the references section for vendor advisories and patches from suse. Update rancher to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-20321?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-20321 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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