CVE-2021-36365 : What You Need to Know

Nagios XI before version 5.8.5 is impacted by CVE-2021-36365 due to Incorrect Permission Assignment for repairmysql.sh.

Understanding CVE-2021-36365

This CVE record highlights a vulnerability in Nagios XI that could allow attackers to exploit Incorrect Permission Assignment in repairmysql.sh.

What is CVE-2021-36365?

CVE-2021-36365 affects Nagios XI versions prior to 5.8.5 with an Incorrect Permission Assignment vulnerability in repairmysql.sh script.

The Impact of CVE-2021-36365

This vulnerability could be exploited by malicious actors to manipulate permissions and potentially disrupt or gain unauthorized access to Nagios XI instances.

Technical Details of CVE-2021-36365

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability lies in the repairmysql.sh script of Nagios XI versions before 5.8.5, leading to Incorrect Permission Assignment.

Affected Systems and Versions

Nagios XI versions earlier than 5.8.5 are vulnerable to this security issue related to repairmysql.sh.

Exploitation Mechanism

Attackers can leverage the Incorrect Permission Assignment in repairmysql.sh to escalate privileges or modify critical files within Nagios XI.

Mitigation and Prevention

Here are the necessary steps to secure systems against CVE-2021-36365.

Immediate Steps to Take

Update Nagios XI to version 5.8.5 or later to mitigate the vulnerability immediately.
Restrict access to vulnerable scripts and directories within Nagios XI deployments.

Long-Term Security Practices

Regularly monitor and audit permissions and access controls within Nagios XI environments.
Educate system administrators on secure coding practices and permissions management.

Patching and Updates

Stay informed about security updates from Nagios and promptly apply patches to eliminate vulnerabilities like Incorrect Permission Assignment.