CVE-2022-43515: zabbix frontend Improper Input Validation

Vulnerability summary

CVE-2022-43515 is a critical (CVSS 9.8) Improper Input Validation vulnerability in zabbix frontend. EPSS estimates a 1.26% chance of exploitation in the next 30 days, higher than 69.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 12-12-2022
   PublishedVulnerability first disclosed.
2. 03-11-2025
   Last modifiedVulnerability information updated.

Description

Zabbix Frontend provides a feature that allows admins to maintain the installation and ensure that only certain IP addresses can access it. In this way, any user will not be able to access the Zabbix Frontend while it is being maintained and possible sensitive data will be prevented from being disclosed. An attacker can bypass this protection and access the instance using IP address not listed in the defined range.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
• CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.