Vulnerability Details : CVE-2020-15186
In Helm before versions 2.16.11 and 3.3.2 plugin names are not sanitized properly. As a result, a malicious plugin author could use characters in a plugin name that would result in unexpected behavior, such as duplicating the name of another plugin or spoofing the output to `helm --help`. This issue has been patched in Helm 3.3.2. A possible workaround is to not install untrusted Helm plugins. Examine the `name` field in the `plugin.yaml` file for a plugin, looking for characters outside of the [a-zA-Z0-9._-] range.
Vulnerability category: Input validation
Products affected by CVE-2020-15186
- cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*
- cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15186
0.42%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15186
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:P/A:N |
8.0
|
2.9
|
NIST | |
|
2.7
|
LOW | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
1.2
|
1.4
|
NIST | |
|
3.4
|
LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N |
1.6
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2020-15186
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: security-advisories@github.com (Secondary)
-
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15186
-
https://github.com/helm/helm/security/advisories/GHSA-m54r-vrmv-hw33
Sanitizing plugin names · Advisory · helm/helm · GitHubThird Party Advisory
-
https://github.com/helm/helm/commit/809e2d999e2c33e20e77f6bff30652d79c287542
Merge pull request from GHSA-m54r-vrmv-hw33 · helm/helm@809e2d9 · GitHubPatch;Third Party Advisory
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