CVE-2019-11251
Last modified
CVE-2019-11251 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.. EPSS estimates a 2.31% chance of exploitation in the next 30 days.
Description
The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Kubernetes | >= 1.13.0, < 1.13.11 |
| Kubernetes | Kubernetes | >= 1.14.0, < 1.14.7 |
| Kubernetes | Kubernetes | >= 1.15.0, < 1.15.4 |
| Kubernetes | Kubernetes | 1.1-1.12 |
References
- https://github.com/kubernetes/kubernetes/issues/87773Third Party Advisory
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJMailing List, Third Party Advisory
- https://github.com/kubernetes/kubernetes/issues/87773Third Party Advisory
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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