CVE-2019-1002101
high-risk
Published 2019-04-01
The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes creates a tar inside the container, 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. The untar function can both create and follow symbolic links. The issue is resolved in kubectl v1.11.9, v1.12.7, v1.13.5, and v1.14.0.
Do I need to act?
!
49.3% chance of exploitation in next 30 days
EPSS score — higher than 51% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.4/10
Medium
NETWORK
/ HIGH complexity
Affected Products (5)
Affected Vendors
References (21)
Third Party Advisory
http://www.securityfocus.com/bid/107652
Third Party Advisory
https://access.redhat.com/security/cve/cve-2019-1002101
Third Party Advisory
http://www.securityfocus.com/bid/107652
and 1 more references
50
/ 100
high-risk
Severity
20/34 · Moderate
Exploitability
18/34 · Moderate
Exposure
12/34 · Low