Home/CVE/In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles
CVE

CVE-2018-1002100

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

MEDIUM · CVSS 4.2 EPSS 0.0051
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

5
kubernetes>= 1.5.0 and <= 1.5.9
kubernetes>= 1.6.0 and <= 1.6.14
kubernetes>= 1.7.0 and <= 1.7.17
kubernetes>= 1.8.0 and <= 1.8.15
kubernetes>= 1.9.0 and <= 1.9.5
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go k8s.io/kubernetes MODERATE fixed in 1.9.6
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumKubernetes Events Deleted
productmediumKubernetes Admission Controller Modification
productmediumKubernetes CronJob/Job Modification
productmediumKubernetes Potential Enumeration Activity
productmediumKubernetes Secrets Modified or Deleted
productmediumKubernetes Rolebinding Modification
▣

Scoring & Timeline

4.2
MEDIUM · CVSS v3.0 · jordan@liggitt.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Jun 2018 · 01:29 AM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

2
suse-csafopenSUSE-SU-2025:15424-1
rhsaRHBA-2018:1796Moderate
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1564305Issue TrackingThird Party Advisory
https://github.com/kubernetes/kubernetes/issues/61297Third Party Advisory
https://hansmi.ch/articles/2018-04-openshift-s2i-securityThird Party Advisory
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