CVE-2020-28939 : Exploit Details and Defense Strategies

OpenClinic version 0.8.2 is affected by a medical/test_new.php insecure file upload vulnerability, allowing authenticated users to upload malicious files, potentially leading to arbitrary code execution.

Understanding CVE-2020-28939

OpenClinic version 0.8.2 vulnerability impacting file upload functionality.

What is CVE-2020-28939?

This CVE identifies a security flaw in OpenClinic version 0.8.2 that enables authenticated users with significant privileges to upload harmful files, like PHP web shells, posing a risk of executing arbitrary code on the server.

The Impact of CVE-2020-28939

The vulnerability in OpenClinic version 0.8.2 can result in severe consequences:

Unauthorized code execution on the application server
Potential compromise of sensitive data
Risk of complete system control by malicious actors

Technical Details of CVE-2020-28939

Insight into the technical aspects of the vulnerability.

Vulnerability Description

OpenClinic version 0.8.2 is susceptible to an insecure file upload flaw in medical/test_new.php
Authenticated users with substantial privileges can exploit this vulnerability

Affected Systems and Versions

Product: OpenClinic
Version: 0.8.2

Exploitation Mechanism

Attackers upload malicious files, such as PHP web shells, through the vulnerable file upload functionality

Mitigation and Prevention

Measures to address and prevent the CVE-2020-28939 vulnerability.

Immediate Steps to Take

Disable file upload functionality if not essential
Implement strict file type validation and size restrictions
Regularly monitor uploaded files for suspicious content

Long-Term Security Practices

Conduct regular security assessments and penetration testing
Educate users on secure file upload practices

Patching and Updates

Apply patches or updates provided by OpenClinic to fix the vulnerability