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CVE-2020-15187

LOW
Published 2020-09-17T21:50:12
Actions:

Expert Analysis

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CVSS Score

V3.1
3.0
/10
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.549
Higher than 54.9% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED

Impact Metrics

Confidentiality
NONE
Integrity
LOW
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

helm

helm

Affected Versions:

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

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed LOW

plugin.yaml file allows for duplicate entries in helm

GHSA-c52f-pq47-2r9j

Advisory Details

### Impact During a security audit of Helm's code base, Helm maintainers identified a bug in which 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). ### Patches This issue has been patched in Helm 2.16.11 and Helm 3.3.2. ### Workarounds Make sure to install plugins using a secure connection protocol like SSL.

Affected Packages

Go helm.sh/helm/v3
ECOSYSTEM: ≥3.0.0 <3.3.2
Go helm.sh/helm
ECOSYSTEM: ≥2.0.0 <2.16.11

CVSS Scoring

CVSS Score

2.5

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

References

WEB https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-15187
WEB https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946
WEB https://github.com/helm/helm/commit/ac7c07c37d87e09797f714fb57aa5e9cb99d9450
WEB https://github.com/helm/helm/commit/b0296c0522e837d65f944beefa3fb64fd08ac304
WEB https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499
WEB https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b
WEB https://github.com/helm/helm/commit/f2ede29480b507b7d8bb152dd8b6b86248b00658
PACKAGE https://github.com/helm/helm

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2021, Modified: May 29, 2025

References

https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j
https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946
https://github.com/helm/helm/commit/ac7c07c37d87e09797f714fb57aa5e9cb99d9450
https://github.com/helm/helm/commit/b0296c0522e837d65f944beefa3fb64fd08ac304
https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499
https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b
https://github.com/helm/helm/commit/f2ede29480b507b7d8bb152dd8b6b86248b00658
Published: 2020-09-17T21:50:12
Last Modified: 2025-05-29T22:59:03.267Z
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