CVE-2020-6586 Explained : Impact and Mitigation

Nagios Log Server 2.1.3 allows XSS by visiting /profile and entering a crafted name field that is mishandled on the /admin/users page. Any malicious user with limited access can store an XSS payload in his Name. When any admin views this, the XSS is triggered.

Understanding CVE-2020-6586

This CVE involves a cross-site scripting (XSS) vulnerability in Nagios Log Server 2.1.3.

What is CVE-2020-6586?

CVE-2020-6586 is a security vulnerability in Nagios Log Server 2.1.3 that allows for XSS attacks through a specific user interaction.

The Impact of CVE-2020-6586

The vulnerability enables malicious users to execute XSS attacks, potentially compromising the security and integrity of the system.

Technical Details of CVE-2020-6586

This section provides more technical insights into the CVE.

Vulnerability Description

The XSS vulnerability in Nagios Log Server 2.1.3 occurs when a user inputs a crafted name field on the /profile page, leading to XSS execution on the /admin/users page.

Affected Systems and Versions

Product: Nagios Log Server 2.1.3
Vendor: Nagios
Version: 2.1.3

Exploitation Mechanism

The vulnerability allows a user with limited access to store an XSS payload in their Name field, triggering the XSS when viewed by an admin.

Mitigation and Prevention

Protecting systems from CVE-2020-6586 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Nagios Log Server to the latest version to patch the vulnerability.
Educate users on safe data input practices to prevent XSS attacks.

Long-Term Security Practices

Regularly monitor and audit user inputs for suspicious or malicious content.
Implement web application firewalls to detect and block XSS attempts.

Patching and Updates

Stay informed about security updates and patches released by Nagios for Nagios Log Server.