CVE-2020-15699 : Exploit Details and Defense Strategies

An issue was discovered in Joomla! through 3.9.19. Missing validation checks on the usergroups table object can result in a broken site configuration.

Understanding CVE-2020-15699

This CVE identifies a vulnerability in Joomla! versions up to 3.9.19 that can lead to a broken site configuration due to missing validation checks on the usergroups table object.

What is CVE-2020-15699?

CVE-2020-15699 is a security vulnerability found in Joomla! up to version 3.9.19. It stems from inadequate validation checks on the usergroups table object, potentially allowing malicious actors to manipulate site configurations.

The Impact of CVE-2020-15699

The vulnerability can be exploited by attackers to compromise the integrity and functionality of Joomla! websites, leading to a broken site configuration and potential unauthorized access.

Technical Details of CVE-2020-15699

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

Vulnerability Description

The issue arises from missing validation checks on the usergroups table object within Joomla!, which can be exploited by threat actors to disrupt site configurations.

Affected Systems and Versions

Affected versions: Joomla! through 3.9.19
Systems: Joomla! websites running the vulnerable versions

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the usergroups table object, bypassing validation checks, and causing a misconfiguration in Joomla! sites.

Mitigation and Prevention

Protecting systems from CVE-2020-15699 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Joomla! to the latest patched version that addresses the vulnerability.
Implement strict access controls and user permissions to mitigate unauthorized changes.

Long-Term Security Practices

Regularly monitor and audit user permissions and configurations within Joomla!.
Stay informed about security updates and best practices from Joomla! security advisories.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities like CVE-2020-15699 are mitigated.