CVE-2021-3193 : Security Advisory and Response

A vulnerability in the Nagios Docker Config Wizard before version 1.1.2, impacting Nagios XI up to version 5.7, allows unauthorized users to execute remote code as the apache user.

Understanding CVE-2021-3193

This section covers the essential details of the CVE-2021-3193 vulnerability.

What is CVE-2021-3193?

CVE-2021-3193 involves improper access and command validation in the Nagios Docker Config Wizard, leading to remote code execution by unauthenticated attackers.

The Impact of CVE-2021-3193

The vulnerability enables malicious actors to run arbitrary code on the target system with the privileges of the apache user.

Technical Details of CVE-2021-3193

Delve into the technical aspects of CVE-2021-3193 to better understand the vulnerability.

Vulnerability Description

The issue arises from improper handling of access and command validation in the Nagios Docker Config Wizard, facilitating unauthorized code execution.

Affected Systems and Versions

Nagios XI versions up to 5.7 are impacted by this vulnerability due to the flawed configuration in the Docker Config Wizard.

Exploitation Mechanism

Exploiting this vulnerability does not require authentication, allowing remote threat actors to execute malicious commands as the apache user.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-3193 and prevent potential exploitation.

Immediate Steps to Take

Disable or restrict access to the Nagios Docker Config Wizard to mitigate the risk of unauthorized code execution.

Long-Term Security Practices

Implement regular security updates and conduct security assessments to detect and fix vulnerabilities promptly.

Patching and Updates

Apply the latest patches and updates provided by Nagios to address the vulnerability and enhance system security.