CVE-2020-35612 : Vulnerability Insights and Analysis

An issue was discovered in Joomla! 2.5.0 through 3.9.22 where the folder parameter of mod_random_image lacked input validation, resulting in a path traversal vulnerability.

Understanding CVE-2020-35612

This CVE relates to a path traversal vulnerability in Joomla! CMS versions 2.5.0 through 3.9.22.

What is CVE-2020-35612?

CVE-2020-35612 is a security vulnerability found in Joomla! CMS versions 2.5.0 through 3.9.22 due to inadequate input validation in the folder parameter of mod_random_image, allowing for path traversal attacks.

The Impact of CVE-2020-35612

This vulnerability could be exploited by attackers to traverse directories and access sensitive files on the server, potentially leading to unauthorized data disclosure or system compromise.

Technical Details of CVE-2020-35612

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in mod_random_image in Joomla! CMS versions 2.5.0 through 3.9.22 arises from the lack of proper input validation in the folder parameter, enabling malicious actors to navigate outside the intended directory structure.

Affected Systems and Versions

Product: Joomla! CMS
Vendor: Joomla! Project
Versions Affected: 2.5.0 through 3.9.22

Exploitation Mechanism

By manipulating the folder parameter in mod_random_image, attackers can craft requests to access files outside the intended directory, potentially leading to unauthorized data access or system compromise.

Mitigation and Prevention

Protecting systems from CVE-2020-35612 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply the vendor-provided patches or updates to mitigate the vulnerability.
Implement proper input validation mechanisms in custom Joomla! extensions to prevent similar issues.

Long-Term Security Practices

Regularly update Joomla! CMS and its extensions to ensure the latest security fixes are in place.
Conduct security audits to identify and address any vulnerabilities in the Joomla! environment.

Patching and Updates

Joomla! Project has likely released patches or updates to address the path traversal vulnerability in mod_random_image. Ensure timely application of these fixes to secure the system.