ASA-202009-4: python-django: multiple issues
Arch Linux Security Advisory ASA-202009-4
========================================
Severity: Medium
Date : 2020-09-03
CVE-ID : CVE-2020-24583 CVE-2020-24584
Package : python-django
Type : multiple issues
Remote : Yes
Link : https://security.archlinux.org/AVG-1217
Summary
======
The package python-django before version 3.1.1-1 is vulnerable to
multiple issues including access restriction bypass and insufficient
validation.
Resolution
=========
Upgrade to 3.1.1-1.
# pacman -Syu "python-django>=3.1.1-1"
The problems have been fixed upstream in version 3.1.1.
Workaround
=========
None.
Description
==========
- CVE-2020-24583 (access restriction bypass)
An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10,
and 3.1 before 3.1.1 (when Python 3.7+ is used).
FILE_UPLOAD_DIRECTORY_PERMISSIONS mode was not applied to intermediate-
level directories created in the process of uploading files. It was
also not applied to intermediate-level collected static directories
when using the collectstatic management command.
- CVE-2020-24584 (insufficient validation)
An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10,
and 3.1 before 3.1.1 (when Python 3.7+ is used). The intermediate-level
directories of the filesystem cache had the system's standard umask
rather than 0o077.
Impact
=====
A remote attacker is able to upload and overwrite files.
References
=========
https://bugs.archlinux.org/task/67794
https://www.djangoproject.com/weblog/2020/sep/01/security-releases/
https://github.com/django/django/commit/934430d22aa5d90c2ba33495ff69a6a1d997d584
https://github.com/django/django/commit/2b099caa5923afa8cfb5f1e8c0d56b6e0e81915b
https://security.archlinux.org/CVE-2020-24583
https://security.archlinux.org/CVE-2020-24584
A python-django security update has been released for Arch Linux to address multiple issues.