CVE-2019-20197 : Vulnerability Insights and Analysis

In Nagios XI 5.6.9, a user who is logged in can use special characters in the id parameter of the schedulereport.php file to run any commands on the operating system. This is done within the web-server user account.

Understanding CVE-2019-20197

In Nagios XI 5.6.9, an authenticated user can execute arbitrary OS commands via shell metacharacters in the id parameter to schedulereport.php, in the context of the web-server user account.

What is CVE-2019-20197?

This CVE refers to a vulnerability in Nagios XI 5.6.9 that allows an authenticated user to run arbitrary operating system commands using special characters in the id parameter of the schedulereport.php file.

The Impact of CVE-2019-20197

The vulnerability enables an attacker to execute unauthorized commands within the web-server user account, potentially leading to system compromise and unauthorized access.

Technical Details of CVE-2019-20197

In-depth technical information about the vulnerability.

Vulnerability Description

An authenticated user in Nagios XI 5.6.9 can exploit the id parameter in schedulereport.php to execute arbitrary OS commands, posing a significant security risk.

Affected Systems and Versions

Product: Nagios XI 5.6.9
Vendor: N/A
Version: N/A

Exploitation Mechanism

The vulnerability allows attackers to use special characters in the id parameter of the schedulereport.php file to execute unauthorized commands within the web-server user account.

Mitigation and Prevention

Protective measures to address the CVE-2019-20197 vulnerability.

Immediate Steps to Take

Update Nagios XI to a patched version that addresses the vulnerability.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement least privilege access controls to limit user capabilities.
Regularly audit and review system configurations for security gaps.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.