CVE-2018-1002105
Privilege Escalation in Kubernetes in github.com/kubernetes/kubernetes
9.8
CRITICAL
CVSS 3.1
EPSS 90.1%
Description
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.
How to fix CVE-2018-1002105
To remediate CVE-2018-1002105, upgrade the affected package to a fixed version below.
- —upgrade to 1.17.4-1 or later
- —upgrade to 1.10.11 or later
- —upgrade to 1.10.11 or later
Is CVE-2018-1002105 being exploited?
Likely — EPSS is 90.1%, placing CVE-2018-1002105 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (3)
- from 0, < 1.17.4-1
- from 0, < 1.10.11
- from 0, < 1.10.11, >= 1.11.0, < 1.11.5, >= 1.12.0, < 1.12.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |