CVE-2023-41050 – zope

Package

Manager: pip
Name: zope
Vulnerable Version: >=0 <4.8.9 || >=5.0.0 <5.8.4

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

EPSS: 0.00235 pctl0.46351

Details

Information disclosure in AccessControl ### Impact Python's "format" functionality allows someone controlling the format string to "read" objects accessible (recursively) via attribute access and subscription from accessible objects. Those attribute accesses and subscriptions use Python's full blown `getattr` and `getitem`, not the policy restricted `AccessControl` variants `_getattr_` and `_getitem_`. This can lead to critical information disclosure. `AccessControl` already provides a safe variant for `str.format` and denies access to `string.Formatter`. However, `str.format_map` is still unsafe. Affected are all users who allow untrusted users to create `AccessControl` controlled Python code and execute it. ### Patches A fix will be introduced in the versions 4.4, 5.8 and 6.2. ### Workarounds There are no workarounds. ### References https://github.com/zopefoundation/RestrictedPython/security/advisories/GHSA-xjw2-6jm9-rf67 describes the corresponding problem for `RestrictedPython`.

Metadata

Created: 2023-09-07T12:56:39Z
Modified: 2023-09-07T12:56:39Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/09/GHSA-8xv7-89vj-q48c/GHSA-8xv7-89vj-q48c.json
CWE IDs: ["CWE-200"]
Alternative ID: GHSA-8xv7-89vj-q48c
Finding: F038
Auto approve: 1