Helm ChartMuseum up to 0.8.0 HTTP API POST Request path traversal

Summaryinfo

A vulnerability described as critical has been identified in Helm ChartMuseum up to 0.8.0. This issue affects some unknown processing of the component HTTP API. The manipulation as part of POST Request results in path traversal. This vulnerability is cataloged as CVE-2019-1000009. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Helm ChartMuseum up to 0.8.0. Affected is an unknown code block of the component HTTP API. The manipulation as part of a POST Request leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Helm ChartMuseum version >=0.1.0 and < 0.8.1 contains a CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in HTTP API to save charts that can result in a specially crafted chart could be uploaded and saved outside the intended location. This attack appears to be exploitable via A POST request to the HTTP API can save a chart archive outside of the intended directory. If authentication is, optionally, enabled this requires an authorized user to do so. This vulnerability appears to have been fixed in 0.8.1.

The bug was discovered 01/14/2019. The weakness was shared 02/04/2019. This vulnerability is traded as CVE-2019-1000009 since 02/04/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• Helm

Name

• ChartMuseum

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8.0

CPE 2.3info

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CPE 2.2info

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