Sandbox escape via various forms of "format" in RestrictedPython
Summary
Sandbox escape via various forms of "format" in RestrictedPython
Original description
The description as published by the source.
RestrictedPython is a restricted execution environment for Python to run untrusted code. Python's "format" functionality allows someone controlling the format string to "read" all objects accessible through recursive attribute lookup and subscription from objects he can access. This can lead to critical information disclosure. With RestrictedPython, the format functionality is available via the format and format_map methods of str (and unicode) (accessed either via the class or its instances) and via string.Formatter. All known versions of RestrictedPython are vulnerable. This issue has been addressed in commit 4134aedcff1 which has been included in the 5.4 and 6.2 releases. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2023-41039 restrictedpython
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com