Main Vulnerability Database Vulnerabilities #VU54490

SQL injection in Django - CVE-2021-35042

Published: July 1, 2021 / Updated: September 25, 2021

Vulnerability identifier: #VU54490

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-35042

CWE-ID: CWE-89

Exploitation vector: Remote access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in "QuerySet.order_by()". A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Affected software

Django
Arch Linux
Gentoo Linux
Fedora
python-django
dev-python/django

How to mitigate CVE-2021-35042

Install updates from vendor's website.

Django - addressed in versions 3.1.13, 3.2.5
python-django - update to 3.1.13-1.fc34
dev-python/django - update to 5.2.1

Links to Public Exploits and PoC-codes

External References

https://www.djangoproject.com/weblog/2021/jul/01/security-releases/