CVE-2020-20588 : Security Advisory and Response

This CVE record pertains to a file upload vulnerability in zhimengzhe iBarn 1.5, allowing remote attackers to execute arbitrary code.

Understanding CVE-2020-20588

What is CVE-2020-20588?

The vulnerability lies in the 'upload' function in action/Core.class.php in zhimengzhe iBarn 1.5, enabling malicious actors to run arbitrary code by uploading a crafted avatar to index.php.

The Impact of CVE-2020-20588

This vulnerability can be exploited by remote attackers to execute arbitrary code on the affected system, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2020-20588

Vulnerability Description

The issue arises from improper input validation in the file upload functionality of zhimengzhe iBarn 1.5, allowing attackers to upload malicious files and execute arbitrary code.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions: All versions of zhimengzhe iBarn 1.5 are affected.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a specially crafted avatar file to the index.php page, triggering the execution of arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Disable file uploads in the affected application if not essential.
Implement input validation mechanisms to restrict file types and sizes.
Regularly monitor and review uploaded files for suspicious content.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Stay informed about security best practices and updates in secure coding techniques.

Patching and Updates

Apply patches or updates provided by the software vendor to fix the file upload vulnerability in zhimengzhe iBarn 1.5.