The module `AccessControl` defines security policies for Python code used in restricted code within Zope applications. Restricted code is any code that resides in Zope's object database, such as the c
The module AccessControl defines security policies for Python code used in restricted code within Zope applications. Restricted code is any code that resides in Zope's object database, such as the contents of Script (Python) objects. The policies defined in AccessControl severely restrict access to Python modules and only exempt a few that are deemed safe, such as Python's string module. However, full access to the string module also allows access to the class Formatter, which can be overridden and extended within Script (Python) in a way that provides access to other unsafe Python libraries. Those unsafe Python libraries can be used for remote code execution. By default, you need to have the admin-level Zope "Manager" role to add or edit Script (Python) objects through the web. Only sites that allow untrusted users to add/edit these scripts through the web - which would be a very unusual configuration to begin with - are at risk. The problem has been fixed in AccessControl 4.3 and 5.2. Only AccessControl versions 4 and 5 are vulnerable, and only on Python 3, not Python 2.7. As a workaround, a site administrator can restrict adding/editing Script (Python) objects through the web using the standard Zope user/role permission mechanisms. Untrusted users should not be assigned the Zope Manager role and adding/editing these scripts through the web should be restricted to trusted users only. This is the default configuration in Zope.
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| Platforma | Paczka | Podatne wersje | Poprawka w wersji |
|---|---|---|---|
| Python (PyPI) | accesscontrol | >= 4.0, < 4.3, >= 5.0, < 5.2 | 4.3, 5.2 |
| Python (PyPI) | zope | >= 4.0, < 4.3, >= 5.0, < 5.2 | 4.3, 5.2 |
Odnośniki
- https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j53g-ccgf
- https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8fr
- https://nvd.nist.gov/vuln/detail/CVE-2021-32807
- https://github.com/zopefoundation/AccessControl/commit/ae2dab0cc34e6dd1561c5b12d4a56cd140f87e1d
- https://github.com/zopefoundation/AccessControl/commit/b42dd4badf803bb9fb71ac34cd9cb0c249262f2c
- https://github.com/zopefoundation/Zope/commit/869f947e586517566509e0ccdd4d99b60704cc02
- https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464a4be988
- https://github.com/pypa/advisory-database/tree/main/vulns/accesscontrol/PYSEC-2021-335.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/accesscontrol/PYSEC-2021-370.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/zope/PYSEC-2021-368.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/zope/PYSEC-2021-875.yaml
- https://github.com/zopefoundation/AccessControl
- https://github.com/zopefoundation/AccessControl/blob/master/CHANGES.rst#51-2021-07-30
- Wektor CVSS
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N- Słabość (CWE)
CWE-1321, CWE-915- Platforma
- Python (PyPI)
- Paczka
accesscontrol, zope- Ujawniono
- 30.07.2021
- Aktualizacja
- 11.10.2026 13:19
Źródła i licencje
OSV / GitHub Advisory Database - PYSEC-2021-335 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-qcx9-j53g-ccgf - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2021-875 - PyPA Advisory Database; CC BY 4.0
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The module `AccessControl` defines security policies for Python code used in restricted code within Zope applications. Restricted code is any code that resides in Zope's object database, such as the c ten wpis
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