Categories
CVE-2020-15185

Vulnerability in helm.sh/helm/v3 (CVE-2020-15185)

Summary

Vulnerability in helm.sh/helm/v3 (CVE-2020-15185). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 3.3.2 or later.

Original description

The description as published by the source.

Impact

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).

Specific Go Packages Affected

helm.sh/helm/v3/pkg/repo

Patches

This issue has been patched in Helm 3.3.2 and 2.16.11

Workarounds

  • 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 chart’s 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.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2020-15185 has been found in helm.sh/helm/v3.
Risk of unauthorized operations or information disclosure.
What to do: upgrade helm.sh/helm/v3 to 3.3.2 or later.
If unsure, ask your IT team or search "helm.sh/helm/v3 CVE-2020-15185" on the vendor's site.

CVE-2020-15185 (helm.sh/helm/v3) — CWE-20
Attack vector: remote (network-reachable) / no user interaction
Patched: 3.3.2 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-20) exists in helm.sh/helm/v3.

📍 Affected scope

Check the vendor advisory for the affected versions of helm.sh/helm/v3.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 3.3.2.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'helm.sh/helm/v3' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    grep -r 'helm.sh/helm/v3' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で helm.sh/helm/v3 を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patch patch
    Upgrade helm.sh/helm/v3 to 3.3.2

    ステージング環境で 3.3.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  3. 3
    Post-deployment verification verify
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Go helm.sh/helm/v3
[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.3.2"}]}]
Go helm.sh/helm
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.16.11"}]}]

References

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