CVE-2021-42869 : Exploit Details and Defense Strategies

A Cross Site Scripting (XSS) vulnerability in Chikista Patient Management Software 2.0.2 could allow attackers to exploit the last_name parameter in various pages.

Understanding CVE-2021-42869

What is CVE-2021-42869?

The CVE-2021-42869 vulnerability is a Cross Site Scripting (XSS) issue present in Chikista Patient Management Software 2.0.2, specifically affecting the last_name parameter in several pages.

The Impact of CVE-2021-42869

This vulnerability could enable malicious actors to execute arbitrary scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2021-42869

Vulnerability Description

The XSS flaw resides in Chikista Patient Management Software 2.0.2 and arises from inadequate input validation of the last_name parameter on multiple pages.

Affected Systems and Versions

Affected Product: Chikista Patient Management Software 2.0.2
Vendor: N/A
Affected Version: N/A

Exploitation Mechanism

Attackers can craft malicious input in the last_name parameter on pages such as patient/insert, patient_report, appointment_report, visit_report, and bill_detail_report to execute unauthorized scripts.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation to sanitize user input and prevent script injection.
Regularly monitor and audit system logs for any suspicious activities indicating XSS attacks.

Long-Term Security Practices

Educate developers on secure coding practices and the importance of input validation to mitigate XSS vulnerabilities.
Conduct periodic security assessments and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Contact the software vendor for patches or updates to address the XSS vulnerability in the affected software.