QID 982410

QID 982410: Go (go) Security Update for helm.sh/helm/v3/pkg/repo (GHSA-jm56-5h66-w453)

Security update has been released for helm.sh/helm/v3/pkg/repo,helm.sh/helm/v3,helm.sh/helm to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

During a security audit of Helm's code base, security researchers at Trail of Bits identified a bug in which the 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).

CVSS V3 rated as Low - 2.7 severity.

CVSS V2 rated as Medium - 4 severity.

Solution

This issue has been patched in Helm 3.3.2 and 2.16.11Workaround:
- do not install charts from repositories you do not trust
- fetch charts using a secure channel of communication (such as TLS)
- use `helm pull` to fetch the chart, then review the charts content (either manually, or with `helm verify` if it has been signed) to ensure it has not been tampered with
- manually review the index file in the Helm repository cache before installing software.

Vendor References

GHSA-jm56-5h66-w453 - github.com/advisories/GHSA-jm56-5h66-w453

CVEs related to QID 982410

CVE-2020-15185 |

Software Advisories

Advisory ID	Software	Link
GHSA-jm56-5h66-w453	helm.sh/helm	github.com/advisories/GHSA-jm56-5h66-w453
GHSA-jm56-5h66-w453	helm.sh/helm/v3	github.com/advisories/GHSA-jm56-5h66-w453
GHSA-jm56-5h66-w453	helm.sh/helm/v3/pkg/repo	github.com/advisories/GHSA-jm56-5h66-w453

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