CVE-2023-40587
Summary
| CVE | CVE-2023-40587 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2023-08-25 21:15:00 UTC |
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| Updated | 2023-09-15 21:15:00 UTC |
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| Description | Pyramid is an open source Python web framework. A path traversal vulnerability in Pyramid versions 2.0.0 and 2.0.1 impacts users of Python 3.11 that are using a Pyramid static view with a full filesystem path and have a `index.html` file that is located exactly one directory above the location of the static view's file system path. No further path traversal exists, and the only file that could be disclosed accidentally is `index.html`. Pyramid version 2.0.2 rejects any path that contains a null-byte out of caution. While valid in directory/file names, we would strongly consider it a mistake to use null-bytes in naming files/directories. Secondly, Python 3.11, and 3.12 has fixed the underlying issue in `os.path.normpath` to no longer truncate on the first `0x00` found, returning the behavior to pre-3.11 Python, un an as of yet unreleased version. Fixes will be available in:Python 3.12.0rc2 and 3.11.5. Some workarounds are available. Use a version of Python 3 that is not affected, downgrade to Python 3.10 series temporarily, or wait until Python 3.11.5 is released and upgrade to the latest version of Python 3.11 series. |
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NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
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| Application |
Agendaless |
Pyramid |
All |
All |
All |
All |
References
| Reference | Source | Link | Tags |
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| gh-106242: Fix path truncation in normpath by finnagin · Pull Request #106816 · python/cpython · GitHub |
MISC |
github.com |
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| [SECURITY] Fedora 39 Update: python-pyramid-2.0.2-1.fc39 - package-announce - Fedora Mailing-Lists |
MISC |
lists.fedoraproject.org |
|
| Pyramid static view path traversal up one directory · Advisory · Pylons/pyramid · GitHub |
MISC |
github.com |
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| os.path.normpath truncates input on null bytes in 3.11, but not 3.10 · Issue #106242 · python/cpython · GitHub |
MISC |
github.com |
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| [SECURITY] Fedora 38 Update: python-pyramid-2.0.2-1.fc38 - package-announce - Fedora Mailing-Lists |
MISC |
lists.fedoraproject.org |
|
| fix: reject NUL character as path element · Pylons/pyramid@347d775 · GitHub |
MISC |
github.com |
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| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 285291 Fedora Security Update for python (FEDORA-2023-70baf5e2fe)
