Vulnerability in SUSE Rancher
CVE-2018-20321
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
References
- rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-… (Mitigation, Vendor Advisory)
- forums.rancher.com/c/announcements (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-20321?
- CVE-2018-20321 is a high-severity vulnerability in SUSE Rancher, classified under Exposure of Resource to Wrong Sphere. CVSS score: 8.8/10. Published 2019-04-10.
- How severe is CVE-2018-20321?
- High severity. CVSS v3 base score is 8.8 out of 10.