GHSA-6jqw-jwf5-rp8h: Path Traversal
First published: Wed Sep 27 2023(Updated: )
### Impact In Argo CD versions prior to 2.3 (starting at least in v0.1.0, but likely in any version using Helm before 2.3), using a specifically-crafted Helm file could reference external Helm charts handled by the same repo-server to leak values, or files from the referenced Helm Chart. This was possible because Helm paths were predictable. The vulnerability worked by adding a Helm chart that referenced Helm resources from predictable paths. Because the paths of Helm charts were predictable and available on an instance of repo-server, it was possible to reference and then render the values and resources from other existing Helm charts regardless of permissions. While generally, secrets are not stored in these files, it was nevertheless possible to reference any values from these charts. ### Patches This issue was fixed in Argo CD 2.3 and subsequent versions by randomizing Helm paths. ### Workarounds User's still using Argo CD 2.3 or below are advised to update to a [supported version](https://argo-cd.readthedocs.io/en/stable/operator-manual/installation/#supported-versions). If this is not possible, disabling Helm chart rendering, or using an additional repo-server for each Helm chart would prevent possible exploitation. ### References https://github.com/argoproj/argo-cd/security/advisories/GHSA-63qx-x74g-jcr7 ### For more information If you have any questions or comments about this advisory: * Open an issue in [example link to repo](http://example.com) * Email us at [example email address](mailto:example@example.com)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/github.com/argoproj/argo-cd/v2 | <2.3.0 | 2.3.0 |
| go/github.com/argoproj/argo-cd | <=1.8.7 |
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Reference Links
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-63qx-x74g-jcr7
- https://github.com/argoproj/argo-cd/security/advisories/GHSA-6jqw-jwf5-rp8h
- https://nvd.nist.gov/vuln/detail/CVE-2023-40026
- https://argo-cd.readthedocs.io/en/stable/operator-manual/installation/#supported-versions
- https://github.com/advisories/GHSA-6jqw-jwf5-rp8h (Advisory)
Frequently Asked Questions
What is the vulnerability ID for the Argo CD vulnerability?
The vulnerability ID for the Argo CD vulnerability is GHSA-6jqw-jwf5-rp8h.
What is the impact of the Argo CD vulnerability?
In Argo CD versions prior to 2.3, a specifically-crafted Helm file could reference external Helm charts to leak values or files.
How can I check if my Argo CD version is affected?
Check if your Argo CD version is prior to 2.3, starting from at least v0.1.0 and using Helm before 2.3.
What is the severity level of the Argo CD vulnerability?
The severity level of the Argo CD vulnerability is medium.
How do I fix the Argo CD vulnerability?
Update your Argo CD version to 2.3.0 or above.
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