Kubernetes Java client libraries unvalidated path traversal in Copy implementation
CVE-2020-8570

9.1CRITICAL

Key Information:

Vendor

Kubernetes
Status
Kubernetes Java Client
Vendor
CVE Published:
21 January 2021

What is CVE-2020-8570?

Kubernetes Java client libraries in version 10.0.0 and versions prior to 9.0.1 allow writes to paths outside of the current directory when copying multiple files from a remote pod which sends a maliciously crafted archive. This can potentially overwrite any files on the system of the process executing the client code.

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Affected Version(s)

Kubernetes Java Client all versions prior to 9.0

Kubernetes Java Client 9.0 < 9.0.2

Kubernetes Java Client 10.0 < 10.0.1

References

https://groups.google.com/g/kubernetes-security-announce/...
x_refsource_MISC
https://github.com/kubernetes-client/java/issues/1491
x_refsource_MISC
https://lists.apache.org/thread.html/rcafa485d63550657f06...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Discovered via CodeQL automated scanning on GitHub
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