CVE-2019-7331 Explained : Impact and Mitigation

ZoneMinder through version 1.32.3 is vulnerable to Self-Stored Cross Site Scripting (XSS) in the monitor.php file, allowing attackers to execute XSS attacks.

Understanding CVE-2019-7331

What is CVE-2019-7331?

ZoneMinder through version 1.32.3 contains a vulnerability known as Self-Stored Cross Site Scripting (XSS) within the monitor.php file when editing the field labeled "signal check color" for an existing monitor. This vulnerability exposes the application to HTML Injection and allows an attacker to launch an XSS attack.

The Impact of CVE-2019-7331

The lack of input validation and output filtration in ZoneMinder through version 1.32.3 contributes to the vulnerability, potentially leading to unauthorized access and data manipulation.

Technical Details of CVE-2019-7331

Vulnerability Description

Self-Stored Cross Site Scripting (XSS) exists in ZoneMinder through 1.32.3 while editing an existing monitor field named "signal check color" (monitor.php). There exists no input validation or output filtration, leaving it vulnerable to HTML Injection and an XSS attack.

Affected Systems and Versions

Product: ZoneMinder
Vendor: N/A
Versions affected: 1.32.3

Exploitation Mechanism

The vulnerability can be exploited by manipulating the "signal check color" field for an existing monitor, allowing an attacker to inject malicious scripts and execute XSS attacks.

Mitigation and Prevention

Immediate Steps to Take

Update ZoneMinder to a patched version that addresses the XSS vulnerability.
Implement input validation and output filtration mechanisms to prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and update security patches for ZoneMinder.
Educate users on safe practices to prevent XSS vulnerabilities.

Patching and Updates

Apply the latest patches and updates provided by ZoneMinder to mitigate the XSS vulnerability.