CVE-2021-37345 : What You Need to Know

Nagios XI before version 5.8.5 is vulnerable to local privilege escalation due to the import of xi-sys.cfg from the var directory for certain scripts with elevated permissions.

Understanding CVE-2021-37345

This CVE relates to a vulnerability in Nagios XI that allows local users to escalate privileges on the system.

What is CVE-2021-37345?

CVE-2021-37345 is a security flaw in Nagios XI versions prior to 5.8.5, where xi-sys.cfg is imported from the var directory for specific scripts with increased permissions.

The Impact of CVE-2021-37345

The vulnerability can be exploited by local attackers to gain elevated privileges on the system, potentially leading to unauthorized access or malicious activities.

Technical Details of CVE-2021-37345

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The flaw in Nagios XI allows local users to manipulate the xi-sys.cfg file, resulting in privilege escalation within the system.

Affected Systems and Versions

Nagios XI versions before 5.8.5 are impacted by this vulnerability, exposing systems to the risk of local privilege escalation attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the import of xi-sys.cfg from the var directory to execute scripts with elevated permissions.

Mitigation and Prevention

Discover how to address and prevent CVE-2021-37345.

Immediate Steps to Take

It is recommended to update Nagios XI to version 5.8.5 or later to mitigate the risk of local privilege escalation.

Long-Term Security Practices

Implementing the principle of least privilege and regularly monitoring system activities can enhance overall security posture.

Patching and Updates

Stay informed about security patches and updates released by Nagios to protect systems from known vulnerabilities.