CVSS: 8.3EPSS: 0%CPEs: 2EXPL: 0CVE-2023-41039 – Sandbox escape via various forms of "format" in RestrictedPython
https://notcve.org/view.php?id=CVE-2023-41039
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. • https://github.com/zopefoundation/RestrictedPython/commit/4134aedcff17c977da7717693ed89ce56d54c120 https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-xjw2-6jm9-rf67 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVSS: 9.9EPSS: 0%CPEs: 3EXPL: 0CVE-2023-37271 – RestrictedPython vulnerable to arbitrary code execution via stack frame sandbox escape
https://notcve.org/view.php?id=CVE-2023-37271
RestrictedPython 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. • https://github.com/zopefoundation/RestrictedPython/commit/c8eca66ae49081f0016d2e1f094c3d72095ef531 https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-wqc8-x2pr-7jqh • CWE-913: Improper Control of Dynamically-Managed Code Resources •