ghsa-c52f-pq47-2r9j
Vulnerability from github
Published
2021-05-24 16:57
Modified
2025-05-29 22:59
Severity ?
3.0 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N
Summary
plugin.yaml file allows for duplicate entries in helm
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.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "helm.sh/helm/v3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "helm.sh/helm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.16.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-15187"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-694",
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-24T12:56:32Z",
    "nvd_published_at": "2020-09-17T22:15:00Z",
    "severity": "LOW"
  },
  "details": "### Impact\n\nDuring a security audit of Helm\u0027s 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\u0027s install hooks, causing a local execution attack.\n\nTo 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).\n\n### Patches\n\nThis issue has been patched in Helm 2.16.11 and Helm 3.3.2.\n\n### Workarounds\n\nMake sure to install plugins using a secure connection protocol like SSL.",
  "id": "GHSA-c52f-pq47-2r9j",
  "modified": "2025-05-29T22:59:16Z",
  "published": "2021-05-24T16:57:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15187"
    },
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946"
    },
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/commit/ac7c07c37d87e09797f714fb57aa5e9cb99d9450"
    },
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/commit/b0296c0522e837d65f944beefa3fb64fd08ac304"
    },
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499"
    },
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/helm/helm/commit/f2ede29480b507b7d8bb152dd8b6b86248b00658"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/helm/helm"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "plugin.yaml file allows for duplicate entries in helm"
}


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