CVE-2020-4053: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
(updated )
In Helm greater than or equal to 3.0.0 and less than 3.2.4, a path traversal attack is possible when installing Helm plugins from a tar archive over HTTP. It is possible for a malicious plugin author to inject a relative path into a plugin archive, and copy a file outside of the intended directory. This has been fixed in 3.2.4.
References
- github.com/advisories/GHSA-qq3j-xp49-j73f
- github.com/helm/helm/commit/0ad800ef43d3b826f31a5ad8dfbb4fe05d143688
- github.com/helm/helm/commit/b6bbe4f08bbb98eadd6c9cd726b08a5c639908b3
- github.com/helm/helm/pull/8317
- github.com/helm/helm/releases/tag/v3.2.4
- github.com/helm/helm/security/advisories/GHSA-qq3j-xp49-j73f
- nvd.nist.gov/vuln/detail/CVE-2020-4053
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