CVE-2018-17146 Explained : Impact and Mitigation
Learn about CVE-2018-17146, a critical XSS vulnerability in Nagios XI before 5.5.4, allowing attackers to execute malicious JavaScript code on the admin management page. Find mitigation steps and preventive measures here.
Nagios XI before version 5.5.4 is susceptible to a cross-site scripting (XSS) vulnerability through the 'name' parameter, enabling attackers to execute malicious JavaScript code on the admin management page.
Understanding CVE-2018-17146
This CVE entry highlights a critical security issue in Nagios XI that could lead to unauthorized code execution.
What is CVE-2018-17146?
A cross-site scripting (XSS) vulnerability in Nagios XI before version 5.5.4 allows attackers to inject and execute arbitrary JavaScript code via the 'name' parameter on the Account Information page.
The Impact of CVE-2018-17146
Exploiting this vulnerability grants attackers the ability to run malicious scripts on the auto login admin management page, potentially compromising sensitive data and system integrity.
Technical Details of CVE-2018-17146
This section delves into the specifics of the vulnerability.
Vulnerability Description
The flaw in Nagios XI permits attackers to conduct cross-site scripting attacks by manipulating the 'name' parameter, leading to unauthorized script execution.
Affected Systems and Versions
- Product: Nagios XI
- Vendor: Nagios
- Vulnerable Versions: Before 5.5.4
Exploitation Mechanism
Attackers can exploit the vulnerability by injecting malicious JavaScript code through the 'name' parameter on the Account Information page, enabling unauthorized script execution.
Mitigation and Prevention
Protecting systems from CVE-2018-17146 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Upgrade Nagios XI to version 5.5.4 or later to mitigate the vulnerability.
- Implement input validation mechanisms to sanitize user-supplied data and prevent XSS attacks.
Long-Term Security Practices
- Regularly monitor and audit web application code for vulnerabilities like XSS.
- Educate developers and administrators on secure coding practices to prevent similar issues.
Patching and Updates
- Stay informed about security updates and patches released by Nagios to address vulnerabilities promptly.