{"id":"GHSA-4hpj-8rhv-9x87","summary":"Products.CMFCore unauthenticated denial of service and crash via unchecked use of input with Python's marshal module","details":"### Impact\nThe 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.\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's 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)","aliases":["CVE-2023-36814","PYSEC-2023-113"],"modified":"2024-10-14T18:37:27.304146Z","published":"2023-07-05T22:42:09Z","database_specific":{"nvd_published_at":"2023-07-03T17:15:09Z","cwe_ids":["CWE-770"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"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"}],"affected":[{"package":{"name":"products-cmfcore","ecosystem":"PyPI","purl":"pkg:pypi/products-cmfcore"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0"},{"fixed":"3.2"}]}],"versions":["3.0","3.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-4hpj-8rhv-9x87/GHSA-4hpj-8rhv-9x87.json"}},{"package":{"name":"products-cmfcore","ecosystem":"PyPI","purl":"pkg:pypi/products-cmfcore"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.1"}]}],"versions":["2.1.1","2.1.2","2.1.2-beta","2.1.3","2.2.0","2.2.0-alpha","2.2.0-beta","2.2.1","2.2.10","2.2.11","2.2.12","2.2.13","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.0-beta","2.3.0-beta2","2.3.1","2.4.0","2.4.0b1","2.4.0b2","2.4.0b3","2.4.0b4","2.4.0b5","2.4.0b6","2.4.0b7","2.4.0b8","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","2.5.0","2.5.1","2.5.2","2.5.3","2.5.4","2.6.0","2.7.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-4hpj-8rhv-9x87/GHSA-4hpj-8rhv-9x87.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","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"}]}