Improper Sanitizing of plugin names in helm
### Impact Security researchers at Trail of Bits discovered that plugin names are not sanitized properly. As a result, a malicious plugin author could use characters in a plugin name that would result in unexpected behavior, such as duplicating the name of another plugin or spoofing the output to `helm --help`. ### Specific Go Packages Affected helm.sh/helm/v3/pkg/plugin ### Patches This issue has been patched in Helm 3.3.2. ### Workarounds Do not install untrusted Helm plugins. Examine the `name` field in the `plugin.yaml` file for a plugin, looking for characters outside of the [a-zA-Z0-9._-] range.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-15186US | low2.7 | — | ||
In Helm before versions 2.16.11 and 3.3.2 plugin names are not sanitized properly. As a result, a malicious plugin author could use characters in a plugin name that would result in… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/helm/helmPACKAGE
- https://github.com/helm/helm/commit/809e2d999e2c33e20e77f6bff30652d79c287542WEB
- https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499WEB
- https://github.com/helm/helm/security/advisories/GHSA-m54r-vrmv-hw33WEB
- https://nvd.nist.gov/vuln/detail/CVE-2020-15186ADVISORY
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