CVE-2019-3498 : Security Advisory and Response

Django versions 1.11.x before 1.11.18, 2.0.x before 2.0.10, and 2.1.x before 2.1.5 are vulnerable to content spoofing through the django.views.defaults.page_not_found() function.

Understanding CVE-2019-3498

This CVE involves a vulnerability in Django versions that could lead to content spoofing in error pages.

What is CVE-2019-3498?

This CVE pertains to a flaw in Django versions 1.11.x, 2.0.x, and 2.1.x that allows for content spoofing in 404 error pages when users are unaware of malicious content in manipulated URLs.

The Impact of CVE-2019-3498

The vulnerability enables attackers to manipulate URLs to display harmful content on error pages, potentially deceiving users.

Technical Details of CVE-2019-3498

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The issue arises from an Improper Neutralization of Special Elements in Output Used by a Downstream Component in the django.views.defaults.page_not_found() function.

Affected Systems and Versions

Django versions 1.11.x before 1.11.18
Django versions 2.0.x before 2.0.10
Django versions 2.1.x before 2.1.5

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting URLs with malicious content, tricking users into viewing harmful information on error pages.

Mitigation and Prevention

Protecting systems from CVE-2019-3498 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Django to versions 1.11.18, 2.0.10, or 2.1.5 to mitigate the vulnerability.
Educate users to be cautious of URLs and report suspicious content.

Long-Term Security Practices

Regularly monitor Django security advisories and apply patches promptly.
Implement URL filtering mechanisms to detect and block malicious URLs.

Patching and Updates

Stay informed about security updates from Django and apply patches as soon as they are released.