GHSA-4HPJ-8RHV-9X87

Vulnerability from github – Published: 2023-07-05 22:42 – Updated: 2024-10-14 15:28
VLAI?
Summary
Products.CMFCore unauthenticated denial of service and crash via unchecked use of input with Python's marshal module
Details

Impact

The use of Python's marshal module to handle unchecked input in a public method on PortalFolder objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of Products.CMFCore, such as Plone. All deployments are vulnerable.

Patches

The code has been fixed in Products.CMFCore version 3.2.

Workarounds

Users can make the affected decodeFolderFilter method unreachable by editing the PortalFolder.py module in Products.CMFCore by hand and then restarting Zope. Go to line 233 of PortalFolder.py and remove both the @security.public decorator for decodeFolderFilter as well as the method's entire docstring. This is safe because the method is not actually used by current code.

References

Credits

Thanks go to Nicolas VERDIER from onepoint.

For more information

If you have any questions or comments about this advisory:

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Products.CMFCore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0"
            },
            {
              "fixed": "3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "Products.CMFCore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-36814"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-05T22:42:09Z",
    "nvd_published_at": "2023-07-03T17:15:09Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nThe use of Python\u0027s marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable.\n\n### Patches\nThe code has been fixed in `Products.CMFCore` version 3.2.\n\n### Workarounds\nUsers can make the affected `decodeFolderFilter` method unreachable by editing the `PortalFolder.py` module in `Products.CMFCore` by hand and then restarting Zope. Go to line 233 of `PortalFolder.py` and remove both the `@security.public` decorator for `decodeFolderFilter` as well as the method\u0027s entire docstring. This is safe because the method is not actually used by current code.\n\n### References\n- Products.CMFCore security advisory [GHSA-4hpj-8rhv-9x87](https://github.com/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87)\n\n### Credits\nThanks go to Nicolas VERDIER from onepoint.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n- Open an issue in the [Products.CMFCore issue tracker](https://github.com/zopefoundation/Products.CMFCore/issues)\n- Email us at [security@plone.org](mailto:security@plone.org)",
  "id": "GHSA-4hpj-8rhv-9x87",
  "modified": "2024-10-14T15:28:49Z",
  "published": "2023-07-05T22:42:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-36814"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zopefoundation/Products.CMFCore/commit/40f03f43a60f28ca9485c8ef429efef729be54e5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zopefoundation/Products.CMFCore/commit/c1847a9042abe7965271fa73762dfe091b576de"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/products-cmfcore/PYSEC-2023-113.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/zopefoundation/Products.CMFCore"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Products.CMFCore unauthenticated denial of service and crash via unchecked use of input with Python\u0027s marshal module"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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