CVE-2018-1002105 EXPLOIT
9.8
CRITICAL · CVSS 3.0 · EPSS 87% (pctl 100)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 86.98% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-388 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-12-05 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| kubernetes | kubernetes |
| netapp | trident |
| redhat | openshift container platform |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Kubernetes - (Unauthenticated) Arbitrary Requests | 2018-12-10 |
| exploit-db | Kubernetes - (Authenticated) Arbitrary Requests | 2018-12-10 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
- http://www.openwall.com/lists/oss-security/2019/06/28/2
- http://www.openwall.com/lists/oss-security/2019/07/06/3
- http://www.openwall.com/lists/oss-security/2019/07/06/4
- http://www.securityfocus.com/bid/106068
- https://access.redhat.com/errata/RHSA-2018:3537
- https://access.redhat.com/errata/RHSA-2018:3549
- https://access.redhat.com/errata/RHSA-2018:3551
- https://access.redhat.com/errata/RHSA-2018:3598
- https://access.redhat.com/errata/RHSA-2018:3624
- https://access.redhat.com/errata/RHSA-2018:3742
- https://access.redhat.com/errata/RHSA-2018:3752
- https://access.redhat.com/errata/RHSA-2018:3754
- https://github.com/evict/poc_CVE-2018-1002105
- https://github.com/kubernetes/kubernetes/issues/71411
- https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88
- https://security.netapp.com/advisory/ntap-20190416-0001/
- https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do
- https://www.exploit-db.com/exploits/46052/
- https://www.exploit-db.com/exploits/46053/
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