CVE-2018-17147 : Vulnerability Insights and Analysis

Nagios XI before version 5.5.4 is vulnerable to a cross-site scripting (XSS) issue in the auto login admin management page.

Understanding CVE-2018-17147

This CVE entry describes a specific security vulnerability in Nagios XI.

What is CVE-2018-17147?

The auto login admin management page of Nagios XI prior to version 5.5.4 contains a cross-site scripting (XSS) vulnerability.

The Impact of CVE-2018-17147

This vulnerability could allow an attacker to execute malicious scripts in the context of an authenticated user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-17147

Nagios XI before version 5.5.4 is susceptible to a cross-site scripting (XSS) flaw.

Vulnerability Description

The auto login admin management page of Nagios XI is affected by a cross-site scripting (XSS) vulnerability.

Affected Systems and Versions

Product: Nagios XI
Vendor: Nagios
Versions affected: All versions prior to 5.5.4

Exploitation Mechanism

The vulnerability can be exploited by an attacker injecting malicious scripts into the affected page, which are then executed in the context of an authenticated user's session.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Upgrade Nagios XI to version 5.5.4 or later to mitigate the XSS vulnerability.
Regularly monitor and audit the admin management page for any suspicious activities.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Educate users on safe browsing practices and the risks associated with executing scripts from untrusted sources.

Patching and Updates

Stay informed about security updates and patches released by Nagios for Nagios XI.
Promptly apply patches to ensure the system is protected against known vulnerabilities.