Sandbox escape via various forms of "format".

CAO 7.7CVE-2023-41039 · GHSA-xjw2-6jm9-rf67 · PYSEC-2023-159 · Công bố 30/08/2023 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2023-41039 là lỗ hổng mức CAO (CVSS 7.7) ảnh hưởng restrictedpython, restrictedpython (zope).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.68%, cao hơn 52.5% các lỗ hổng khác.
Cách xử lý: cập nhật lên 6.2, 5.4 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
restrictedpython PyPI	`≥ 6.0, < 6.2< 5.4`	`6.25.4`
restrictedpython zope	`≥ 6.0, < 6.2< 5.4`	`6.25.4`

Mô tả

Impact

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.

Patches

The issue will be fixed in 5.4 and 6.2.

Workarounds

There are no workarounds to fix the issue without upgrading.

References

For more information

If you have any questions or comments about this advisory:

Open an issue in the RestrictedPython issue tracker
Email us at [email protected]

Credits

Thanks for analysing and reporting the go to:

Abhishek Govindarasu
Ankush Menat
Ward Theunisse

Mô tả của NVD

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.