CVE-2017-1002101
Vulnerability Summary
Timeline
Description
In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with any volume type (including non-privileged pods, subject to file permissions) can access files/directories outside of the volume, including the host's filesystem.
CVSS Metrics
- v3.0•HIGH•Score: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- v3.0•CRITICAL•Score: 9.6CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- v2.0•MEDIUM•Score: 5.5AV:N/AC:L/Au:S/C:P/I:P/A:N
EPSS Trends
Current EPSS score: 33.51%• Percentile: 97%
Techniques & Countermeasures
- CWE-59•Improper Link Resolution Before File Access ('Link Following')
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
Affected Systems
- kubernetes•kubernetes
≥ 1.3.0, ≤ 1.3.10 | ≥ 1.4.0, ≤ 1.4.12 | ≥ 1.5.0, ≤ 1.5.8 | ≥ 1.6.0, ≤ 1.6.13 | ≥ 1.7.0, < 1.7.14 | ≥ 1.8.0, < 1.8.9 | ≥ 1.9.0, < 1.9.4 | v1.3.x | v1.4.x | v1.5.x | v1.6.x | ≥ unspecified, < v1.7.14 | ≥ unspecified, < v1.8.9 | ≥ unspecified, < v1.9.4