Helm up to 2.16.10/3.3.1 Plugin Name input validation

Summaryinfo

A vulnerability marked as critical has been reported in Helm up to 2.16.10/3.3.1. This affects an unknown part of the component Plugin Name Handler. This manipulation causes input validation. This vulnerability is registered as CVE-2020-15186. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Helm up to 2.16.10/3.3.1. Affected by this vulnerability is an unknown code of the component Plugin Name Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 unexpected behavior, such as duplicating the name of another plugin or spoofing the output to `helm --help`. This issue has been patched in Helm 3.3.2. A possible workaround is to 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.

The weakness was published 09/17/2020 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-15186 since 06/25/2020. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.16.11 or 3.3.2 eliminates this vulnerability.

Similar entries are available at VDB-161516, VDB-161514 and VDB-161513. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Helm

Version

• 2.16.0
• 2.16.1
• 2.16.2
• 2.16.3
• 2.16.4
• 2.16.5
• 2.16.6
• 2.16.7
• 2.16.8
• 2.16.9
• 2.16.10
• 3.3.0
• 3.3.1

Website

• Product: https://github.com/helm/helm/

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CPE 2.2info

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