CVE-2020-15187

Description

In Helm before versions 2.16.11 and 3.3.2, a Helm plugin can contain duplicates of the same entry, with the last one always used. If a plugin is compromised, this lowers the level of access that an attacker needs to modify a plugin's install hooks, causing a local execution attack. To perform this attack, an attacker must have write access to the git repository or plugin archive (.tgz) while being downloaded (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 2.16.11 and Helm 3.3.2. As a possible workaround make sure to install plugins using a secure connection protocol like SSL.

How to fix CVE-2020-15187

To remediate CVE-2020-15187, upgrade the affected package to a fixed version below.

• —upgrade to 2.16.11 or later
• —upgrade to 2.16.11 or later
• —upgrade to 3.3.2 or later

Is CVE-2020-15187 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (3)

• >= 2.0.0, < 2.16.11, >= 3.0.0, < 3.3.2
• >= 2.0.0, < 2.16.11
• >= 3.0.0, < 3.3.2

CVSS scores

References (9)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-15187
• PATCHgithub.com/helm/helm
• WEBgithub.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946
• WEBgithub.com/helm/helm/commit/ac7c07c37d87e09797f714fb57aa5e9cb99d9450