CVE-2019-14654 : Exploit Details and Defense Strategies
Learn about CVE-2019-14654 affecting Joomla! versions 3.9.7 and 3.9.8. Understand the impact, exploitation mechanism, and mitigation steps to prevent remote code execution.
Joomla! versions 3.9.7 and 3.9.8 contain a vulnerability in the filtering mechanism that allows authorized users to manipulate filtering options, leading to remote code execution. The issue is addressed in version 3.9.9.
Understanding CVE-2019-14654
This CVE involves a flaw in Joomla! versions 3.9.7 and 3.9.8 that enables users with specific privileges to exploit the filtering mechanism, potentially resulting in remote code execution.
What is CVE-2019-14654?
The vulnerability in Joomla! versions 3.9.7 and 3.9.8 allows authorized users to tamper with filtering options, specifically in the filter attribute of subform fields, enabling the execution of remote code.
The Impact of CVE-2019-14654
The security flaw permits attackers to execute remote code on affected Joomla! instances, potentially leading to unauthorized access, data breaches, and system compromise.
Technical Details of CVE-2019-14654
Joomla! version 3.9.7 and 3.9.8 are susceptible to the following:
Vulnerability Description
Inadequate filtering in Joomla! versions 3.9.7 and 3.9.8 allows users with custom field creation privileges to manipulate filtering options, introducing unvalidated choices that can lead to remote code execution.
Affected Systems and Versions
- Joomla! 3.9.7
- Joomla! 3.9.8
Exploitation Mechanism
Authorized users with the privilege to create custom fields can exploit the filter attribute in subform fields to execute remote code on the affected Joomla! instances.
Mitigation and Prevention
To address CVE-2019-14654, consider the following steps:
Immediate Steps to Take
- Upgrade Joomla! to version 3.9.9 or later to mitigate the vulnerability.
- Restrict access to the Joomla! admin panel to authorized personnel only.
Long-Term Security Practices
- Regularly monitor Joomla! security advisories for any new vulnerabilities.
- Implement the principle of least privilege to restrict user access rights.
Patching and Updates
- Apply security patches promptly to ensure the Joomla! installation is up to date and protected against known vulnerabilities.