CVE-2020-15187 : Vulnerability Insights and Analysis

In Helm before versions 2.16.11 and 3.3.2, a vulnerability allows a Helm plugin to contain duplicates of the same entry, potentially leading to a local execution attack. This issue has been patched in Helm 2.16.11 and Helm 3.3.2.

Understanding CVE-2020-15187

This CVE involves a vulnerability in Helm that could be exploited by attackers to execute local attacks.

What is CVE-2020-15187?

This vulnerability in Helm allows a compromised plugin to have duplicate entries, enabling attackers to modify a plugin's install hooks and execute local attacks.

The Impact of CVE-2020-15187

CVSS Base Score: 3 (Low)
Attack Vector: Network
Attack Complexity: High
Privileges Required: Low
User Interaction: Required
Scope: Changed
Integrity Impact: Low
Confidentiality Impact: None
Availability Impact: None

Technical Details of CVE-2020-15187

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows Helm plugins to have duplicate entries, which can be exploited by attackers for local execution attacks.

Affected Systems and Versions

Affected Versions: Helm >= 2.0.0, < 2.16.11 and >= 3.0.0, < 3.3.2
Affected Vendor: Helm

Exploitation Mechanism

Attackers can exploit this vulnerability by compromising a plugin and using duplicate entries to modify a plugin's install hooks, leading to local execution attacks.

Mitigation and Prevention

Protecting systems from CVE-2020-15187 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Helm to versions 2.16.11 and 3.3.2 to patch the vulnerability.
Install plugins using secure connection protocols like SSL to prevent attacks.

Long-Term Security Practices

Regularly update Helm and its plugins to the latest versions.
Implement secure coding practices to prevent similar vulnerabilities.
Monitor plugin installations for any suspicious activity.
Educate users on safe plugin installation practices.
Conduct security audits regularly.
Use secure connections for all downloads.
Employ network security measures to detect and prevent attacks.
Stay informed about security advisories and updates.

Patching and Updates

Ensure all Helm installations are updated to versions 2.16.11 and 3.3.2 to mitigate the vulnerability.