CVE-2021-32103 : Security Advisory and Response
Learn about CVE-2021-32103, a Stored XSS vulnerability in OpenEMR before 5.0.2.1 allowing an admin user to inject malicious scripts. Explore impact, technical details, and mitigation steps.
A Stored XSS vulnerability in interface/usergroup/usergroup_admin.php in OpenEMR before 5.0.2.1 allows an admin authenticated user to inject arbitrary web scripts or HTML via the 'lname' parameter.
Understanding CVE-2021-32103
This CVE highlights a Stored XSS vulnerability in OpenEMR before version 5.0.2.1, posing a risk to the integrity and security of the user data.
What is CVE-2021-32103?
The vulnerability in OpenEMR enables an authenticated admin user to inject malicious web scripts or HTML code using the 'lname' parameter.
The Impact of CVE-2021-32103
The exploitation of this vulnerability can lead to unauthorized access, data theft, and potentially compromising the confidentiality and integrity of patient records.
Technical Details of CVE-2021-32103
This section will delve into the specific technical aspects of the vulnerability.
Vulnerability Description
The vulnerability resides in interface/usergroup/usergroup_admin.php in OpenEMR before version 5.0.2.1, allowing an admin user to execute Stored Cross-Site Scripting attacks.
Affected Systems and Versions
OpenEMR versions before 5.0.2.1 are affected by this vulnerability, emphasizing the need for immediate action to secure systems.
Exploitation Mechanism
Exploitation of the CVE involves an authenticated admin user injecting crafted scripts or HTML code via the 'lname' parameter, leading to Stored Cross-Site Scripting.
Mitigation and Prevention
To safeguard systems from potential exploitation and secure sensitive data, certain steps and practices can be implemented.
Immediate Steps to Take
Users are advised to update their OpenEMR installation to version 5.0.2.1 or higher to mitigate the risk of exploitation from this vulnerability.
Long-Term Security Practices
Incorporating secure coding practices, regular security audits, and educating users on safe data handling practices can enhance overall system security.
Patching and Updates
Regularly updating OpenEMR and applying security patches promptly can help in addressing known vulnerabilities and ensuring a secure environment.