CVE-2020-15901 Explained : Impact and Mitigation

In Nagios XI before 5.7.3, ajaxhelper.php allows remote authenticated attackers to execute arbitrary commands via cmdsubsys.

Understanding CVE-2020-15901

In this CVE, a vulnerability in Nagios XI before version 5.7.3 allows remote authenticated attackers to execute arbitrary commands.

What is CVE-2020-15901?

The CVE-2020-15901 vulnerability in Nagios XI enables remote authenticated attackers to run arbitrary commands through the ajaxhelper.php file using cmdsubsys.

The Impact of CVE-2020-15901

This vulnerability can be exploited by remote authenticated attackers to execute unauthorized commands on the affected system, potentially leading to further compromise or unauthorized access.

Technical Details of CVE-2020-15901

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability exists in Nagios XI before version 5.7.3, specifically in the ajaxhelper.php file, allowing remote authenticated attackers to execute arbitrary commands via cmdsubsys.

Affected Systems and Versions

Product: Nagios XI
Vendor: Nagios
Versions affected: All versions before 5.7.3

Exploitation Mechanism

The vulnerability can be exploited by remote authenticated attackers leveraging the ajaxhelper.php file to execute unauthorized commands using cmdsubsys.

Mitigation and Prevention

Protecting systems from CVE-2020-15901 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Nagios XI to version 5.7.3 or later to mitigate the vulnerability.
Monitor and restrict access to the ajaxhelper.php file.

Long-Term Security Practices

Regularly update and patch Nagios XI to address security vulnerabilities.
Implement strong authentication mechanisms to prevent unauthorized access.

Patching and Updates

Ensure timely application of security patches and updates to Nagios XI to address known vulnerabilities.