CVE-2019-19714 : Exploit Details and Defense Strategies

Contao versions 4.8.4 and 4.8.5 are affected by a vulnerability that allows the injection of insert tags into the login module, leading to potential substitution when the page is displayed.

Understanding CVE-2019-19714

This CVE involves improper encoding or escaping of output in Contao versions 4.8.4 and 4.8.5, enabling the injection of insert tags into the login module.

What is CVE-2019-19714?

The flaw in Contao versions 4.8.4 and 4.8.5 allows attackers to inject insert tags into the login module, which are then substituted upon page rendering.

The Impact of CVE-2019-19714

This vulnerability could be exploited by malicious actors to manipulate the login module content, potentially leading to unauthorized access or other security breaches.

Technical Details of CVE-2019-19714

Contao versions 4.8.4 and 4.8.5 are susceptible to the following:

Vulnerability Description

The flaw in encoding or escaping of output allows for the injection of insert tags into the login module.

Affected Systems and Versions

Product: Contao
Vendor: Contao
Versions: 4.8.4, 4.8.5

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting insert tags into the login module, which are then processed and displayed on the page.

Mitigation and Prevention

To address CVE-2019-19714, consider the following steps:

Immediate Steps to Take

Update Contao to a patched version that addresses the vulnerability.
Monitor login module content for any suspicious insert tags.

Long-Term Security Practices

Regularly review and update security configurations for Contao.
Educate users on safe content practices to prevent injection attacks.

Patching and Updates

Apply patches provided by Contao to fix the encoding or escaping issue in versions 4.8.4 and 4.8.5.