CVE-2019-9167 : Vulnerability Insights and Analysis

Nagios XI versions prior to 5.5.11 are vulnerable to a cross-site scripting (XSS) attack through the xiwindow parameter.

Understanding CVE-2019-9167

This CVE entry describes a security vulnerability in Nagios XI that allows attackers to inject malicious web scripts or HTML content.

What is CVE-2019-9167?

CVE-2019-9167 is a cross-site scripting (XSS) vulnerability in Nagios XI versions before 5.5.11, enabling threat actors to insert arbitrary web scripts or HTML using the xiwindow parameter.

The Impact of CVE-2019-9167

This vulnerability can lead to unauthorized access, data theft, and potential manipulation of the Nagios XI interface, posing a significant risk to affected systems.

Technical Details of CVE-2019-9167

Nagios XI's security flaw is detailed below.

Vulnerability Description

The vulnerability in Nagios XI versions prior to 5.5.11 allows malicious actors to execute XSS attacks by injecting unauthorized web scripts or HTML content via the xiwindow parameter.

Affected Systems and Versions

Product: Nagios XI
Vendor: Nagios
Vulnerable Versions: Versions before 5.5.11

Exploitation Mechanism

Attackers exploit the xiwindow parameter in Nagios XI to inject and execute malicious web scripts or HTML content, potentially compromising the system.

Mitigation and Prevention

Protect your system from CVE-2019-9167 with the following measures.

Immediate Steps to Take

Update Nagios XI to version 5.5.11 or later to patch the vulnerability.
Monitor system logs for any suspicious activities indicating a potential XSS attack.

Long-Term Security Practices

Implement regular security audits and penetration testing to identify and address vulnerabilities proactively.
Educate users on safe browsing habits and the risks associated with XSS attacks.

Patching and Updates

Stay informed about security updates and patches released by Nagios for Nagios XI.
Apply patches promptly to ensure your system is protected against known vulnerabilities.