CVE-2019-7349 : Exploit Details and Defense Strategies

ZoneMinder versions up to 1.32.3 are vulnerable to Reflected Cross Site Scripting (XSS) due to inadequate filtration in the 'newMonitor[V4LCapturesPerFrame]' parameter in monitor.php. This allows attackers to execute arbitrary HTML or JavaScript code.

Understanding CVE-2019-7349

ZoneMinder through version 1.32.3 is susceptible to a Reflected Cross Site Scripting (XSS) vulnerability.

What is CVE-2019-7349?

This CVE refers to a security flaw in ZoneMinder versions up to 1.32.3 that enables attackers to execute malicious HTML or JavaScript code through a specific parameter.

The Impact of CVE-2019-7349

Exploiting this vulnerability can lead to the execution of arbitrary code by malicious actors, potentially compromising the security and integrity of the affected system.

Technical Details of CVE-2019-7349

ZoneMinder's vulnerability to Reflected Cross Site Scripting (XSS) can be further understood through technical details.

Vulnerability Description

The XSS vulnerability in ZoneMinder up to version 1.32.3 arises from inadequate filtration in the 'newMonitor[V4LCapturesPerFrame]' parameter within the monitor.php file.

Affected Systems and Versions

Affected Version: ZoneMinder up to 1.32.3
Systems: All systems running the vulnerable versions of ZoneMinder

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious HTML or JavaScript code through the vulnerable parameter, potentially leading to unauthorized code execution.

Mitigation and Prevention

Protecting systems from CVE-2019-7349 requires immediate actions and long-term security practices.

Immediate Steps to Take

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

Long-Term Security Practices

Regularly monitor and update software to mitigate known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Apply security patches provided by ZoneMinder promptly to fix the XSS vulnerability and enhance system security.