CVE-2018-10574 : Exploit Details and Defense Strategies

In versions of BigTree before 4.2.22, a vulnerability exists in the site/index.php/admin/trees/add/ functionality, allowing attackers to upload and execute malicious PHP code on the server. The issue stems from inadequate restrictions in the BigTreeStorage class.

Understanding CVE-2018-10574

This CVE pertains to a security flaw in BigTree CMS versions prior to 4.2.22 that enables the upload and execution of arbitrary PHP code by unauthorized individuals.

What is CVE-2018-10574?

BigTree CMS versions before 4.2.22 are susceptible to a vulnerability that permits attackers to upload and run malicious PHP code on the server due to insufficient restrictions in the BigTreeStorage class.

The Impact of CVE-2018-10574

The vulnerability in BigTree CMS can lead to severe consequences:

Unauthorized execution of malicious PHP code on the server
Potential compromise of sensitive data
Risk of server hijacking or control by malicious actors

Technical Details of CVE-2018-10574

This section delves into the technical aspects of the CVE.

Vulnerability Description

The flaw in BigTree CMS versions prior to 4.2.22 allows remote attackers to upload and execute arbitrary PHP code because the BigTreeStorage class in core/inc/bigtree/apis/storage.php does not prevent uploads of .htaccess files.

Affected Systems and Versions

Product: BigTree CMS
Vendor: BigTree
Versions affected: All versions before 4.2.22

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading malicious PHP code through the site/index.php/admin/trees/add/ functionality, taking advantage of the lack of restrictions in the BigTreeStorage class.

Mitigation and Prevention

Protecting systems from CVE-2018-10574 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update BigTree CMS to version 4.2.22 or later to mitigate the vulnerability
Monitor server logs for any suspicious activities
Implement strict file upload restrictions

Long-Term Security Practices

Regularly audit and update server configurations
Conduct security training for personnel to recognize and respond to potential threats
Employ intrusion detection and prevention systems

Patching and Updates

Apply patches and updates provided by BigTree CMS promptly
Stay informed about security advisories and best practices to enhance system security