CVE-2023-22973 : Security Advisory and Response

This is a Local File Inclusion (LFI) vulnerability identified in OpenEMR < 7.0.0, allowing remote authenticated users to execute code through a specific parameter.

Understanding CVE-2023-22973

This section delves into the details of CVE-2023-22973, shedding light on what exactly the vulnerability entails and the potential impact it can have.

What is CVE-2023-22973?

CVE-2023-22973 involves an LFI vulnerability present in the "interface/forms/LBF/new.php" file within OpenEMR < 7.0.0. This flaw enables remote authenticated users to execute malicious code by manipulating the "formname" parameter.

The Impact of CVE-2023-22973

The impact of this vulnerability is significant as it allows attackers to execute arbitrary code on the target system, potentially leading to unauthorized access, data theft, or system compromise.

Technical Details of CVE-2023-22973

In this section, we will explore the technical aspects of CVE-2023-22973, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The LFI vulnerability in OpenEMR < 7.0.0 permits remote authenticated users to include and execute arbitrary files using the "formname" parameter in the "interface/forms/LBF/new.php" file.

Affected Systems and Versions

The vulnerability affects OpenEMR versions earlier than 7.0.0, leaving them susceptible to exploitation by remote authenticated users.

Exploitation Mechanism

By manipulating the "formname" parameter in the vulnerable "new.php" file, remote authenticated users can inject and execute malicious code on the OpenEMR system, compromising its security and integrity.

Mitigation and Prevention

To safeguard systems from the risks posed by CVE-2023-22973, immediate steps should be taken, along with the adoption of long-term security practices and timely patching.

Immediate Steps to Take

Organizations using OpenEMR < 7.0.0 should apply the necessary patches provided by the vendor promptly. Additionally, access controls and monitoring mechanisms should be strengthened to detect and prevent unauthorized code execution.

Long-Term Security Practices

Implementing security best practices such as regular security assessments, code reviews, and user input validation can help mitigate the risks associated with LFI vulnerabilities and enhance overall system security.

Patching and Updates

OpenEMR users are advised to update their systems to version 7.0.0 or newer, as these versions contain patches and security enhancements to remediate the LFI vulnerability. Regularly monitoring for security updates and promptly applying them can help maintain a secure environment.