CVE-2020-15187
Last modified
CVE-2020-15187 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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). EPSS estimates a 1.38% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Helm | Helm | >= 2.0.0, < 2.16.11 |
| Helm | Helm | >= 3.0.0, < 3.3.2 |
References
- https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4bPatch, Third Party Advisory
- https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9jThird Party Advisory
- https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4bPatch, Third Party Advisory
- https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9jThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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