GHSA-6qfg-8799-r575
Kubernetes kubectl cp Vulnerable to Symlink Attack
At a glance
- Published
- Updated
- CVE
- CVE-2019-11251
- Aliases
- GO-2022-0802
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
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.
Affected packages
| Package | Versions |
|---|---|
| Go · k8s.io/kubernetes | introduced 1.13.10, fixed 1.13.11 |
| Go · k8s.io/kubernetes | introduced 1.14.6, fixed 1.14.7 |
| Go · k8s.io/kubernetes | introduced 1.15.3, fixed 1.16.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-11251 ADVISORY
- https://github.com/kubernetes/kubernetes/issues/87773 WEB
- https://github.com/kubernetes/kubernetes/pull/82143 WEB
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJ WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |