CVE-2023-37189 : Exploit Details and Defense Strategies

A stored cross-site scripting (XSS) vulnerability in index.php?menu=billing_rates of Issabel PBX version 4 has been identified, allowing attackers to execute arbitrary web scripts or HTML through a crafted payload.

Understanding CVE-2023-37189

This section delves into the details of the CVE-2023-37189 vulnerability.

What is CVE-2023-37189?

CVE-2023-37189 is a stored cross-site scripting (XSS) vulnerability in Issabel PBX version 4, specifically within the index.php?menu=billing_rates page. This security flaw enables malicious actors to run arbitrary web scripts or HTML by inserting a malicious payload into the Name or Prefix fields under the Create New Rate module.

The Impact of CVE-2023-37189

The exploitation of this vulnerability can result in unauthorized execution of scripts, leading to potential data theft, unauthorized access, and compromise of the affected system.

Technical Details of CVE-2023-37189

Explore the technical aspects and implications of CVE-2023-37189.

Vulnerability Description

The XSS vulnerability in Issabel PBX version 4 allows threat actors to inject and execute malicious scripts or HTML code, posing a significant risk to the security and integrity of the system.

Affected Systems and Versions

The vulnerability affects Issabel PBX version 4, exposing systems that have the Create New Rate module with unvalidated input fields to the risk of XSS attacks.

Exploitation Mechanism

By inserting a carefully crafted payload into the Name or Prefix fields within the Create New Rate module, attackers can trigger the execution of unauthorized scripts or HTML code on the targeted system.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2023-37189 and protect your systems from exploitation.

Immediate Steps to Take

It is crucial to implement immediate security measures to address the XSS vulnerability in Issabel PBX version 4:

Disable or restrict access to the affected page
Regularly monitor and sanitize user input to prevent script injection attacks

Long-Term Security Practices

Incorporate the following practices to enhance the long-term security posture of your systems:

Conduct regular security assessments and audits
Keep systems and applications updated with the latest patches and security fixes

Patching and Updates

Stay informed about security patches and updates released by Issabel PBX to address the CVE-2023-37189 vulnerability and other potential security issues.