CVE-2021-37353 : Security Advisory and Response

Nagios XI Docker Wizard before version 1.1.3 is vulnerable to SSRF due to improper sanitation in table_population.php.

Understanding CVE-2021-37353

This CVE refers to a vulnerability in Nagios XI Docker Wizard that allows Server-Side Request Forgery (SSRF) attacks.

What is CVE-2021-37353?

CVE-2021-37353 highlights a security flaw in Nagios XI Docker Wizard where the lack of proper sanitation in table_population.php can be exploited for SSRF.

The Impact of CVE-2021-37353

This vulnerability could potentially lead to unauthorized access to internal resources, sensitive data exposure, and further network compromises.

Technical Details of CVE-2021-37353

Let's delve into specific technical aspects of this CVE.

Vulnerability Description

The vulnerability in Nagios XI Docker Wizard allows attackers to initiate SSRF attacks due to inadequate input sanitization in the affected file.

Affected Systems and Versions

Nagios XI Docker Wizard versions prior to 1.1.3 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this flaw by sending crafted requests to the vulnerable file, leading to unauthorized access.

Mitigation and Prevention

Here's how you can mitigate and prevent the risks associated with CVE-2021-37353.

Immediate Steps to Take

Update Nagios XI Docker Wizard to version 1.1.3 or newer to eliminate the vulnerability.
Implement proper input validation and sanitization mechanisms to prevent SSRF attacks.

Long-Term Security Practices

Regularly review and update security configurations for all systems and applications.
Conduct security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security patches and updates released by Nagios to ensure your systems are protected against known vulnerabilities.