GHSA-43FF-RR26-8HX4

Vulnerability from github – Published: 2025-10-15 20:09 – Updated: 2025-10-15 20:09
VLAI?
Summary
OpenSearch Data Prepper plugins trust all SSL certificates by default
Details

Impact

The OpenSearch sink and source plugins in Data Prepper are configured to trust all SSL certificates by default when no certificate path was provided, making connections vulnerable to man-in-the-middle attacks.

Prior to this fix, the OpenSearch sink and source plugins would automatically use a trust all SSL strategy when connecting to OpenSearch clusters if no certificate path was explicitly configured. This behavior bypassed SSL certificate validation, potentially allowing attackers to intercept and modify data in transit through man-in-the-middle attacks.

The vulnerability affects connections to OpenSearch when the cert parameter is not explicitly provided.

Patches

Data Prepper 2.12.2

Workarounds

If you cannot immediately upgrade to the fixed version, you can implement the following workaround.

OpenSearch sink

Add the cert parameter to your OpenSearch sink configuration with the path to your cluster's CA certificate. The following example shows how to accomplish this.

sink:
  - opensearch:
      hosts: ["https://your-opensearch-cluster:9200"]
      cert: /path/to/your/ca-certificate.pem

OpenSearch source

Add the cert parameter to your OpenSearch sink configuration with the path to your cluster's CA certificate. The following example shows how to accomplish this.

sink:
  - opensearch:
      hosts: ["https://your-opensearch-cluster:9200"]
      connection:
        cert: /path/to/your/ca-certificate.pem

References

N/A

Severity ?
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.opensearch.dataprepper.plugins:opensearch"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.12.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-62371"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-15T20:09:53Z",
    "nvd_published_at": "2025-10-15T18:15:39Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nThe OpenSearch sink and source plugins in Data Prepper are configured to trust all SSL certificates by default when no certificate path was provided, making connections vulnerable to man-in-the-middle attacks.\n\nPrior to this fix, the OpenSearch sink and source plugins would automatically use a trust all SSL strategy when connecting to OpenSearch clusters if no certificate path was explicitly configured. This behavior bypassed SSL certificate validation, potentially allowing attackers to intercept and modify data in transit through man-in-the-middle attacks.\n\nThe vulnerability affects connections to OpenSearch when the `cert` parameter is not explicitly provided.\n\n### Patches\n\nData Prepper 2.12.2\n\n### Workarounds\n\nIf you cannot immediately upgrade to the fixed version, you can implement the following workaround.\n\n#### OpenSearch sink\n\nAdd the `cert` parameter to your OpenSearch sink configuration with the path to your cluster\u0027s CA certificate. The following example shows how to accomplish this.\n\n```\nsink:\n  - opensearch:\n      hosts: [\"https://your-opensearch-cluster:9200\"]\n      cert: /path/to/your/ca-certificate.pem\n```\n\n#### OpenSearch source\n\nAdd the `cert` parameter to your OpenSearch sink configuration with the path to your cluster\u0027s CA certificate. The following example shows how to accomplish this.\n\n```\nsink:\n  - opensearch:\n      hosts: [\"https://your-opensearch-cluster:9200\"]\n      connection:\n        cert: /path/to/your/ca-certificate.pem\n```\n\n\n### References\n\nN/A",
  "id": "GHSA-43ff-rr26-8hx4",
  "modified": "2025-10-15T20:09:53Z",
  "published": "2025-10-15T20:09:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/opensearch-project/data-prepper/security/advisories/GHSA-43ff-rr26-8hx4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-62371"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opensearch-project/data-prepper/commit/98fcf0d0ff9c18f1f7501e11dbed918814724b99"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opensearch-project/data-prepper/commit/b0386a5af3fb71094ba6c86cd8b2afc783246599"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opensearch-project/data-prepper/commit/db11ce8f27ebca018980b2bca863f7173de9ce56"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opensearch-project/data-prepper"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenSearch Data Prepper plugins trust all SSL certificates by default"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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