CVE-2022-43515 : What You Need to Know

A vulnerability in the Zabbix application could allow an attacker to bypass IP address restrictions and access sensitive data. Here's what you need to know about CVE-2022-43515.

Understanding CVE-2022-43515

This CVE highlights a security issue where the X-Forwarded-For header is active by default, allowing unauthorized access to Zabbix sites in maintenance mode.

What is CVE-2022-43515?

Zabbix Frontend has a feature to restrict access based on IP addresses. However, an attacker can exploit this feature to access the frontend with an unauthorized IP address.

The Impact of CVE-2022-43515

The vulnerability could lead to unauthorized access to Zabbix instances during maintenance, potentially exposing sensitive data to malicious actors.

Technical Details of CVE-2022-43515

This section covers key technical details of the vulnerability.

Vulnerability Description

The issue arises from the X-Forwarded-For header being active by default, enabling attackers to bypass IP restrictions and access Zabbix Frontend.

Affected Systems and Versions

Zabbix Frontend versions 4.0.0 to 4.0.44, 5.0.0 to 5.0.29, 6.0.0 to 6.0.9, and 6.2.0 to 6.2.4 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted requests with the X-Forwarded-For header to bypass IP restrictions and gain unauthorized access.

Mitigation and Prevention

Discover how to address and prevent CVE-2022-43515.

Immediate Steps to Take

Limit network access to Zabbix Frontend during maintenance to mitigate the risk until a permanent solution is implemented.

Long-Term Security Practices

Regularly update Zabbix Frontend to patched versions to prevent exploitation of this vulnerability.

Patching and Updates

Apply the updates specified in the 'Unaffected' section or utilize the provided workaround to remediate the vulnerability.