CVE-2020-4053: Path Traversal in Helm Plugin Archive
First published: Tue Jun 16 2020(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.
Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/helm.sh/helm/v3 | >=3.0.0<3.2.4 | 3.2.4 |
| Helm Helm | >=3.0.0<3.2.4 |
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Reference Links
- https://github.com/helm/helm/security/advisories/GHSA-qq3j-xp49-j73f
- https://nvd.nist.gov/vuln/detail/CVE-2020-4053
- https://github.com/helm/helm/pull/8317
- https://github.com/helm/helm/commit/0ad800ef43d3b826f31a5ad8dfbb4fe05d143688
- https://github.com/helm/helm/commit/b6bbe4f08bbb98eadd6c9cd726b08a5c639908b3
- https://github.com/helm/helm/releases/tag/v3.2.4
- https://github.com/advisories/GHSA-qq3j-xp49-j73f (Advisory)
Frequently Asked Questions
What is CVE-2020-4053?
CVE-2020-4053 is an information disclosure vulnerability in Helm 3.0.0-3.2.3 that allows for a traversal attack when installing Helm plugins from a tar archive over HTTP.
How does CVE-2020-4053 impact Helm?
CVE-2020-4053 allows a malicious plugin author to inject a relative path into a plugin archive, potentially leading to a path traversal attack.
What is the severity of CVE-2020-4053?
CVE-2020-4053 has a severity level of high, with a CVSS score of 6.8.
Which versions of Helm are affected by CVE-2020-4053?
Helm versions greater than or equal to 3.0.0 and less than 3.2.4 are affected by CVE-2020-4053.
How can I fix CVE-2020-4053?
To fix CVE-2020-4053, update Helm to version 3.2.4 or later.
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