CVE-2021-4289 : Exploit Details and Defense Strategies

A vulnerability has been identified in OpenMRS openmrs-module-referenceapplication, affecting versions up to 2.11.x. The vulnerability, classified as CWE-79 Cross Site Scripting, exists in the User App Page controller. By manipulating the AppId argument, remote attackers can exploit this vulnerability. Upgrading to version 2.12.0 resolves this issue.

Understanding CVE-2021-4289

This section delves into the details of CVE-2021-4289.

What is CVE-2021-4289?

CVE-2021-4289 is a cross-site scripting vulnerability found in the OpenMRS openmrs-module-referenceapplication, impacting versions up to 2.11.x. It specifically affects the User App Page controller.

The Impact of CVE-2021-4289

The manipulation of the AppId argument can lead to remote cross-site scripting attacks, posing a risk to the security of affected systems.

Technical Details of CVE-2021-4289

Explore the technical aspects of CVE-2021-4289.

Vulnerability Description

The vulnerability allows remote attackers to conduct cross-site scripting attacks by manipulating the AppId argument in the User App Page controller.

Affected Systems and Versions

Versions up to 2.11.x of the OpenMRS openmrs-module-referenceapplication are affected by this vulnerability.

Exploitation Mechanism

Remote attackers target the AppId argument to exploit the cross-site scripting vulnerability present in the User App Page controller.

Mitigation and Prevention

Learn how to mitigate and prevent CVE-2021-4289.

Immediate Steps to Take

It is recommended to upgrade the affected component to version 2.12.0 to address the cross-site scripting vulnerability.

Long-Term Security Practices

Maintain secure coding practices and conduct regular security assessments to prevent similar vulnerabilities in the future.

Patching and Updates

Refer to the provided patches and upgrade to version 2.12.0 of the OpenMRS openmrs-module-referenceapplication to mitigate the CVE-2021-4289 vulnerability.