CVE-2020-36243 : Security Advisory and Response

OpenEMR 5.0.2.1 Patient Portal is vulnerable to Command Injection in /interface/main/backup.php.

Understanding CVE-2020-36243

The vulnerability allows authenticated attackers to execute arbitrary OS commands through a POST request.

What is CVE-2020-36243?

The Patient Portal of OpenEMR 5.0.2.1 is susceptible to Command Injection, enabling attackers to run unauthorized OS commands.

The Impact of CVE-2020-36243

Attackers can exploit the vulnerability to execute malicious commands on the system.
This could lead to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2020-36243

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Command Injection vulnerability in /interface/main/backup.php of OpenEMR 5.0.2.1.
Authenticated attackers can send a POST request to execute OS commands.

Affected Systems and Versions

Product: OpenEMR 5.0.2.1
Vendor: OpenEMR
Version: All versions are affected.

Exploitation Mechanism

Attackers exploit the vulnerability by sending crafted POST requests containing malicious OS commands.

Mitigation and Prevention

Protect your system from CVE-2020-36243 with the following measures:

Immediate Steps to Take

Apply patches and updates promptly.
Monitor and restrict network traffic to the affected component.
Implement strong authentication mechanisms.

Long-Term Security Practices

Conduct regular security audits and penetration testing.
Educate users on safe computing practices.
Keep software and systems up to date with the latest security patches.
Employ network segmentation to limit the impact of potential breaches.
Consider implementing application control mechanisms.
Utilize intrusion detection and prevention systems.

Patching and Updates

Refer to official OpenEMR sources for patches and updates to address the Command Injection vulnerability.