CVE-2018-12491 Explained : Impact and Mitigation

PHPOK 4.9.032 has an arbitrary file upload vulnerability that can be exploited by uploading a .php file within a .php.zip archive.

Understanding CVE-2018-12491

An arbitrary file upload vulnerability exists in the import_f function located in framework/admin/module_control.php of PHPOK 4.9.032. This vulnerability is similar to CVE-2018-8944.

What is CVE-2018-12491?

This CVE refers to a security flaw in PHPOK 4.9.032 that allows attackers to upload malicious .php files within .php.zip archives.

The Impact of CVE-2018-12491

Attackers can upload and execute arbitrary PHP code on the affected system, leading to unauthorized access and potential data breaches.

Technical Details of CVE-2018-12491

PHPOK 4.9.032 is vulnerable to an arbitrary file upload issue in the import_f function, enabling attackers to upload malicious PHP files.

Vulnerability Description

The vulnerability allows for the unauthorized upload of .php files within .php.zip archives, potentially leading to remote code execution.

Affected Systems and Versions

PHPOK version 4.9.032 is specifically impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a .php file within a .php.zip archive, leveraging the import_f function.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2018-12491.

Immediate Steps to Take

Disable file uploads in the affected application if not essential.
Implement file type and content validation to prevent the upload of malicious files.
Regularly monitor and review uploaded files for suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Keep software and systems up to date with the latest security patches and updates.

Patching and Updates

Apply patches or updates provided by PHPOK to address the arbitrary file upload vulnerability.