CVE-2019-1000009 : Exploit Details and Defense Strategies

Helm ChartMuseum version >=0.1.0 and < 0.8.1 is affected by a Path Traversal vulnerability that allows an attacker to upload a malicious chart to a different directory via the HTTP API. This CVE was assigned on January 22, 2019, and made public on February 4, 2019.

Understanding CVE-2019-1000009

This CVE pertains to a security vulnerability in Helm ChartMuseum versions falling within the range of >=0.1.0 and < 0.8.1.

What is CVE-2019-1000009?

The vulnerability, known as CWE-22, involves improper limitation of a pathname to a restricted directory, enabling an attacker to upload a specially crafted chart to a location different from the intended directory.

The Impact of CVE-2019-1000009

The exploitation of this vulnerability is possible through a POST request to the HTTP API, allowing the chart archive to be saved outside the intended directory. However, if authentication is enabled, an authorized user is required to perform this action. The issue has been resolved in version 0.8.1.

Technical Details of CVE-2019-1000009

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Helm ChartMuseum allows for path traversal, enabling an attacker to save a chart archive outside the intended directory.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: >=0.1.0 and < 0.8.1

Exploitation Mechanism

The vulnerability can be exploited by sending a POST request to the HTTP API, bypassing the intended directory for saving the chart archive.

Mitigation and Prevention

Protecting systems from CVE-2019-1000009 requires immediate actions and long-term security practices.

Immediate Steps to Take

Upgrade Helm ChartMuseum to version 0.8.1 to mitigate the vulnerability.
Implement proper access controls and authentication mechanisms.

Long-Term Security Practices

Regularly update software and apply security patches.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Ensure that all systems are regularly patched and updated to prevent exploitation of known vulnerabilities.