CVE-2022-23132 : Vulnerability Insights and Analysis

Zabbix Proxy and Server installations from RPM are affected by a vulnerability that allows processes to bypass file system permissions using DAC_OVERRIDE SELinux capability.

Understanding CVE-2022-23132

This CVE highlights a security issue in Zabbix installations that can lead to unauthorized bypassing of file permissions.

What is CVE-2022-23132?

During Zabbix installation from RPM, DAC_OVERRIDE SELinux capability is used to access PID files, enabling Proxy or Server processes to circumvent permission checks.

The Impact of CVE-2022-23132

The vulnerability poses a LOW severity threat with local attack vector, requiring user interaction but affecting confidentiality, integrity, and privileges.

Technical Details of CVE-2022-23132

Here are the specific technical details of the CVE.

Vulnerability Description

Zabbix installations allow Proxy or Server processes to surpass file system permissions, potentially leading to unauthorized actions.

Affected Systems and Versions

Zabbix versions ranging from 4.0.0 to 4.0.36, 5.0.0 to 5.0.18, and 5.4.0 to 5.4.8 are impacted by this vulnerability.

Exploitation Mechanism

By utilizing DAC_OVERRIDE SELinux capability during installation, processes can gain unauthorized access and bypass file system permission checks.

Mitigation and Prevention

It's crucial to take immediate steps to address this vulnerability and prevent potential security risks.

Immediate Steps to Take

To remediate this vulnerability, apply the necessary updates provided by Zabbix promptly.

Long-Term Security Practices

Implement strict access controls, regular security audits, and monitoring to enhance overall system security.

Patching and Updates

Stay informed about security patches and updates released by Zabbix to mitigate the risks associated with CVE-2022-23132.