CVE-2019-14234 PoC — Django SQL注入漏洞

Description

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

介绍

# POC-Django JSONField/HStoreField SQL Injection Vulnerability Exploit (CVE-2019-14234)
Django released a security update on August 1, 2019, which fixes a SQL injection vulnerability in the two model fields of JSONField and HStoreField.

Reference link: 

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

The vulnerability requires the developer to use JSONField/HStoreField; moreover, the field name of the queryset can be controlled. Django's built-in application Django-Admin is affected, which gives us an easy way to reproduce the vulnerability.

## Start Vulnerability Application
Compile and start a vulnerable Django 2.2.3 by executing the following command:


```
docker compose build
docker compose up -d
```

After the environment is started, you can see the home page of Django at http://your-ip:8000.

## Vulnerability Reproduce
First, log in to the Django-Admin `http://your-ip:8000/admin/` with username `admin` and password `a123123123`.

Then go to the list-view `http://your-ip:8000/admin/vuln/collection/` of the model `Collection`:

Add `detail__a'b=123` to the GET parameter, where `detail` is the JSONField:

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

You can see that the single quote has been injected successfully, and the SQL statement reports an error:

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