CVE-2019-9203 : Security Advisory and Response

Nagios XI is affected by an authorization bypass vulnerability in Nagios IM, allowing attackers to close incidents through the API. This CVE impacts versions prior to 2.2.7 of Nagios XI.

Understanding CVE-2019-9203

This CVE involves an authorization bypass vulnerability in Nagios IM, a component of Nagios XI.

What is CVE-2019-9203?

By exploiting this vulnerability, attackers can close incidents in Nagios IM through the API, potentially leading to unauthorized actions.

The Impact of CVE-2019-9203

This vulnerability poses a security risk as it allows unauthorized closure of incidents in Nagios IM, compromising the integrity and security of the system.

Technical Details of CVE-2019-9203

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in Nagios IM (part of Nagios XI) before version 2.2.7 enables an attacker to close incidents in IM via the API, bypassing authorization controls.

Affected Systems and Versions

Nagios XI versions prior to 2.2.7 are affected by this vulnerability.

Exploitation Mechanism

Attackers exploit an authorization bypass in Nagios IM to gain the capability to close incidents through the API.

Mitigation and Prevention

Protect your systems from CVE-2019-9203 with the following steps:

Immediate Steps to Take

Update Nagios XI to version 2.2.7 or later to mitigate the vulnerability.
Monitor and restrict API access to prevent unauthorized actions.

Long-Term Security Practices

Regularly audit and review access controls and permissions within Nagios XI.
Educate users on secure API usage and best practices to prevent unauthorized actions.

Patching and Updates

Stay informed about security updates and patches released by Nagios to address vulnerabilities like CVE-2019-9203.