Vulnerability · Published Sep 17, 2020 · Assigned by GitHub_M

CVE-2020-15185Duplicated chart entries in Helm

Low 2.2

In plain English

A low-severity injection in helm from helm. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)2.2Low

Exploit odds (30 days)0.9%top 40.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

In Helm before versions 2.16.11 and 3.3.2, a Helm repository can contain duplicates of the same chart, with the last one always used. If a repository is compromised, this lowers the level of access that an attacker needs to inject a bad chart into a repository. To perform this attack, an attacker must have write access to the index file (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 3.3.2 and 2.16.11. A possible workaround is to manually review the index file in the Helm repository cache before installing software.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	helm.sh/helm	2.16.11	GHSA-jm56-5h66-w453
Go	helm.sh/helm/v3	3.3.2	GHSA-jm56-5h66-w453

Affected products (as reported)

Vendor	Product	Versions
helm	helm	>= 2.0.0, < 2.16.11>= 3.0.0, < 3.3.2

Weakness: CWE-694, CWE-74 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

References

https://github.com/helm/helm/security/advisories/GHSA-jm56-5h66-w453 x_refsource_CONFIRM
https://github.com/helm/helm/commit/055dd41cbe53ce131ab0357524a7f6729e6e40dc x_refsource_MISC