CVE-2019-11249

Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 29 Aug 2019, 00:26
Last modified:16 Sept 2024, 18:19

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
2.85% LOW
3% probability -0.67%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 Aug 2019, 00:26
Published
Vulnerability first disclosed
16 Sept 2024, 18:19
Last Modified
Vulnerability information updated

Description

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.13.9, versions prior to 1.14.5, versions prior to 1.15.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11, 1.12.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
  • v3.0•MEDIUM•Score: 4.8CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N
  • v2.0•MEDIUM•Score: 5.8AV:N/AC:M/Au:N/C:N/I:P/A:P

EPSS Trends

Current EPSS score: 2.85%• Percentile: 86%

Techniques & Countermeasures

  • CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

  • CWE-61•UNIX Symbolic Link (Symlink) Following

    The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.

Affected Systems

  • kubernetes•kubernetes

    ≥ 1.0.0, ≤ 1.12.10 | ≥ 1.13.0, < 1.13.9 | ≥ 1.14.0, < 1.14.5 | ≥ 1.15.0, < 1.15.2 | 1.12.11:beta0 | prior to 1.13.9 | prior to 1.14.5 | prior to 1.15.2 | 1.1 | 1.2 | 1.4 | 1.5 | 1.6 | 1.7 | 1.8 | 1.9 | 1.10 | 1.11 | 1.12

  • redhat•openshift_container_platform

    3.9 | 3.10 | 3.11 | 4.1

References (8)