CVE-2023-37271

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Summary

CVECVE-2023-37271
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-07-11 18:15:00 UTC
Updated2023-07-19 18:32:00 UTC
DescriptionRestrictedPython is a tool that helps to define a subset of the Python language which allows users to provide a program input into a trusted environment. RestrictedPython does not check access to stack frames and their attributes. Stack frames are accessible within at least generators and generator expressions, which are allowed inside RestrictedPython. Prior to versions 6.1 and 5.3, an attacker with access to a RestrictedPython environment can write code that gets the current stack frame in a generator and then walk the stack all the way beyond the RestrictedPython invocation boundary, thus breaking out of the restricted sandbox and potentially allowing arbitrary code execution in the Python interpreter. All RestrictedPython deployments that allow untrusted users to write Python code in the RestrictedPython environment are at risk. In terms of Zope and Plone, this would mean deployments where the administrator allows untrusted users to create and/or edit objects of type `Script (Python)`, `DTML Method`, `DTML Document` or `Zope Page Template`. This is a non-default configuration and likely to be extremely rare. The problem has been fixed in versions 6.1 and 5.3.

Risk And Classification

Problem Types: CWE-913

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Zope Restrictedpython All All All All
Application Zope Restrictedpython 6.0 - All All
Application Zope Restrictedpython 6.0 a1.dev0 All All

References

ReferenceSourceLinkTags
Arbitrary code execution via stack frame sandbox escape · Advisory · zopefoundation/RestrictedPython · GitHub MISC github.com
Merge pull request from GHSA-wqc8-x2pr-7jqh · zopefoundation/RestrictedPython@c8eca66 · GitHub MISC github.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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