GHSA-HRF3-622Q-8366

Vulnerability from github – Published: 2022-06-22 21:22 – Updated: 2022-06-22 21:22
VLAI?
Summary
Unsafe yaml deserialization in NVFlare
Details

Impact

NVFLARE contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.safe_load(). The deserialization of Untrusted Data, may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.

All versions before 2.1.2 are affected. CVSS Score = 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Patches

The patch will be included in nvflare==2.1.2

Workarounds

Change yaml.load() to yaml.safe_load()

Additional information

Issue Found by: Oliver Sellwood (@Nintorac)

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "nvflare"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-31605"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-06-22T21:22:46Z",
    "nvd_published_at": "2022-07-01T18:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nNVFLARE contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.safe_load(). The deserialization of Untrusted Data, may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.\n\nAll versions before 2.1.2 are affected.\nCVSS Score = 9.8\n[AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H](https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fnvd.nist.gov%2Fvuln-metrics%2Fcvss%2Fv3-calculator%3Fvector%3DAV%3AN%2FAC%3AL%2FPR%3AN%2FUI%3AN%2FS%3AU%2FC%3AH%2FI%3AH%2FA%3AH\u0026data=05%7C01%7Cchesterc%40nvidia.com%7Ce9600bde16854b0b380008da4fc544f7%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C637910005925574215%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C\u0026sdata=5kBrXEmAbqp8R31JCH%2FG95MUly72UPVihnBwiRFmvBY%3D\u0026reserved=0)\n\n\n### Patches\n\nThe patch will be included in nvflare==2.1.2\n\n\n### Workarounds\nChange yaml.load() to yaml.safe_load()\n\n### Additional information\nIssue Found by: Oliver Sellwood (@Nintorac)\n\n",
  "id": "GHSA-hrf3-622q-8366",
  "modified": "2022-06-22T21:22:46Z",
  "published": "2022-06-22T21:22:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/NVIDIA/NVFlare/security/advisories/GHSA-hrf3-622q-8366"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31605"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NVIDIA/NVFlare/commit/4de9782697ecb12f39bcae83221bd8d3498959be"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/NVIDIA/NVFlare"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/nvflare/PYSEC-2022-232.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unsafe yaml deserialization in NVFlare"
}


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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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