GHSA-2MQW-RQ5M-8HC8

Vulnerability from github – Published: 2025-01-29 20:50 – Updated: 2025-01-29 22:00
VLAI?
Summary
Snowflake.Data has weak temporary files permissions
Details

Issue

Snowflake discovered and remediated a vulnerability in the Snowflake Connector for .NET in which files downloaded from stages are temporarily placed in a world-readable local directory, making them accessible to unauthorized users on the same machine.

This vulnerability affects versions 2.0.12 through 4.2.0 on Linux and macOS. Snowflake fixed the issue in version 4.3.0.

Vulnerability Details

When downloading files from stages, the Snowflake Connector for .NET uses the OS temporary directory to save files before copying them to the destination directory. The files in the temporary directory, which are removed once the write to the destination directory concludes, have world-readable permissions on Linux and macOS. This could allow any user on the local machine to access them during their limited lifetime.

Solution

Snowflake released version 4.3.0 of the Snowflake Connector for .NET, which fixes this issue. We recommend users upgrade to version 4.3.0.

Additional Information

If you discover a security vulnerability in one of our products or websites, please report the issue to HackerOne. For more information, please see our Vulnerability Disclosure Policy.

Severity ?
5.0 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.2.0"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Snowflake.Data"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.12"
            },
            {
              "fixed": "4.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-24788"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-29T20:50:55Z",
    "nvd_published_at": "2025-01-29T21:15:21Z",
    "severity": "MODERATE"
  },
  "details": "### Issue\nSnowflake discovered and remediated a vulnerability in the Snowflake Connector for .NET in which files downloaded from stages are temporarily placed in a world-readable local directory, making them accessible to unauthorized users on the same machine.\n\nThis vulnerability affects versions 2.0.12 through 4.2.0 on Linux and macOS. Snowflake fixed the issue in version 4.3.0.\n\n### Vulnerability Details\nWhen downloading files from stages, the Snowflake Connector for .NET uses the OS temporary directory to save files before copying them to the destination directory. The files in the temporary directory, which are removed once the write to the destination directory concludes, have world-readable permissions on Linux and macOS. This could allow any user on the local machine to access them during their limited lifetime.\n\n### Solution\nSnowflake released version 4.3.0 of the Snowflake Connector for .NET, which fixes this issue. We recommend users upgrade to version 4.3.0.\n\n### Additional Information\nIf you discover a security vulnerability in one of our products or websites, please report the issue to HackerOne. For more information, please see our [Vulnerability Disclosure Policy](https://hackerone.com/snowflake?type=team).",
  "id": "GHSA-2mqw-rq5m-8hc8",
  "modified": "2025-01-29T22:00:22Z",
  "published": "2025-01-29T20:50:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/snowflakedb/snowflake-connector-net/security/advisories/GHSA-2mqw-rq5m-8hc8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24788"
    },
    {
      "type": "WEB",
      "url": "https://github.com/snowflakedb/snowflake-connector-net/commit/89d91e8316ca213c5d184bcf469ed93977a5edf9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/snowflakedb/snowflake-connector-net"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Snowflake.Data has weak temporary files permissions"
}


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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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