Vulnerability in Kubernetes
CVE-2018-1002105
In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.870 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.870 · newest: 0.870 · change: 0.000
Affected products
- Kubernetes — versions v1.8.x, v1.6.x, v1.4.x
- NetApp Trident
- Red Hat Openshift Container Platform — versions 3.2, 3.3, 3.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/forum/
- www.exploit-db.com/exploits/46053/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- access.redhat.com/errata/RHSA-2018:3549 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3752 (vendor-advisory, Third Party Advisory)
- www.exploit-db.com/exploits/46052/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- access.redhat.com/errata/RHSA-2018:3624 (vendor-advisory, Third Party Advisory)
- www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-… (Third Party Advisory, Mitigation)
- github.com/kubernetes/kubernetes/issues/71411 (Patch, Third Party Advisory, Mitigation, Issue Tracking)
- access.redhat.com/errata/RHSA-2018:3742 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3754 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1002105?
- CVE-2018-1002105 is a critical-severity vulnerability in Kubernetes, classified under CWE-388. CVSS score: 9.8/10. Published 2018-12-05.
- How severe is CVE-2018-1002105?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-1002105 known to be exploited?
- 57 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.