CVE-2019-11251
4.8
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Kubernetes | Kubernetes | prior to 1.13.11 | affected |
| Kubernetes | Kubernetes | prior to 1.14.7 | affected |
| Kubernetes | Kubernetes | prior to 1.15.4 | affected |
| Kubernetes | Kubernetes | 1.1 | affected |
| Kubernetes | Kubernetes | 1.2 | affected |
| Kubernetes | Kubernetes | 1.3 | affected |
| Kubernetes | Kubernetes | 1.4 | affected |
| Kubernetes | Kubernetes | 1.5 | affected |
| Kubernetes | Kubernetes | 1.6 | affected |
| Kubernetes | Kubernetes | 1.7 | affected |
| Kubernetes | Kubernetes | 1.8 | affected |
| Kubernetes | Kubernetes | 1.9 | affected |
| Kubernetes | Kubernetes | 1.10 | affected |
| Kubernetes | Kubernetes | 1.11 | affected |
| Kubernetes | Kubernetes | 1.12 | affected |
Weaknesses
- CWE-61: CWE-61: UNIX Symbolic Link (Symlink) Following
ADP Enrichment
CVE Program Container
Additional References
- https://github.com/kubernetes/kubernetes/issues/87773
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJ
References
- https://github.com/kubernetes/kubernetes/issues/87773
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJ
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