CVE-2020-8570 vulnerability in Kubernetes Products
Published on January 21, 2021
Kubernetes Java client libraries unvalidated path traversal in Copy implementation
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.
Weakness Type
Relative Path Traversal
The software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. This allows attackers to traverse the file system to access files or directories that are outside of the restricted directory.
Products Associated with CVE-2020-8570
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Affected Versions
Kubernetes Java Client:- Version all versions prior to 9.0 is affected.
- Version 9.0 and below 9.0.2 is affected.
- Version 10.0 and below 10.0.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.