Vulnerability-Lookup

GHSA-C52F-PQ47-2R9J

Vulnerability from github – Published: 2021-05-24 16:57 – Updated: 2025-05-29 22:59

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.

Severity

3.0 (Low)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

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JSON

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{
  "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"
}

CVE-2020-15187 (GCVE-0-2020-15187)

Vulnerability from cvelistv5 – Published: 2020-09-17 21:50 – Updated: 2025-05-29 22:59

Title

Duplicate plugin entries in Helm

Summary

In Helm before versions 2.16.11 and 3.3.2, 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). This issue has been patched in Helm 2.16.11 and Helm 3.3.2. As a possible workaround make sure to install plugins using a secure connection protocol like SSL.

Severity

3 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

CWE

CWE-694 - Use of Multiple Resources with Duplicate Identifier
CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

GitHub_M mitre root Scorecard

References

7 references

URL	Tags
https://github.com/helm/helm/security/advisories/…	x_refsource_CONFIRM
https://github.com/helm/helm/commit/6aab63765f990…	x_refsource_MISC
https://github.com/helm/helm/commit/ac7c07c37d87e…	x_refsource_MISC
https://github.com/helm/helm/commit/b0296c0522e83…	x_refsource_MISC
https://github.com/helm/helm/commit/c8d6b01d72c96…	x_refsource_MISC
https://github.com/helm/helm/commit/d9ef5ce8bad51…	x_refsource_MISC
https://github.com/helm/helm/commit/f2ede29480b50…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
helm	helm	Affected: >= 2.0.0, < 2.16.11 Affected: >= 3.0.0, < 3.3.2

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:08:22.691Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "helm",
          "vendor": "helm",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.16.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.3.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Helm before versions 2.16.11 and 3.3.2, 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.\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). This issue has been patched in Helm 2.16.11 and Helm 3.3.2.\nAs a possible workaround make sure to install plugins using a secure connection protocol like SSL."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-694",
              "description": "CWE-694: Use of Multiple Resources with Duplicate Identifier",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-29T22:59:03.267Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j"
        },
        {
          "name": "https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946"
        },
        {
          "name": "https://github.com/helm/helm/commit/ac7c07c37d87e09797f714fb57aa5e9cb99d9450",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/ac7c07c37d87e09797f714fb57aa5e9cb99d9450"
        },
        {
          "name": "https://github.com/helm/helm/commit/b0296c0522e837d65f944beefa3fb64fd08ac304",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/b0296c0522e837d65f944beefa3fb64fd08ac304"
        },
        {
          "name": "https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/c8d6b01d72c9604e43ee70d0d78fadd54c2d8499"
        },
        {
          "name": "https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b"
        },
        {
          "name": "https://github.com/helm/helm/commit/f2ede29480b507b7d8bb152dd8b6b86248b00658",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/helm/helm/commit/f2ede29480b507b7d8bb152dd8b6b86248b00658"
        }
      ],
      "source": {
        "advisory": "GHSA-c52f-pq47-2r9j",
        "discovery": "UNKNOWN"
      },
      "title": "Duplicate plugin entries in Helm"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-15187",
    "datePublished": "2020-09-17T21:50:12.000Z",
    "dateReserved": "2020-06-25T00:00:00.000Z",
    "dateUpdated": "2025-05-29T22:59:03.267Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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